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    <link:label id="lab_us-gaap_BusinessAcquisitionAxis_4284596349675E745B596E3AB76E0635_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis_4284596349675E745B596E3AB76E0635" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition [Axis]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionAxis_4284596349675E745B596E3AB76E0635_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis_4284596349675E745B596E3AB76E0635" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_4284596349675E745B596E3AB76E0635" xlink:type="locator" />
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    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_CEB453330C393E88646D6E3AB76E6CEF_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_CEB453330C393E88646D6E3AB76E6CEF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_CEB453330C393E88646D6E3AB76E6CEF_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_CEB453330C393E88646D6E3AB76E6CEF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CEB453330C393E88646D6E3AB76E6CEF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CEB453330C393E88646D6E3AB76E6CEF" xlink:to="lab_us-gaap_BusinessAcquisitionAcquireeDomain_CEB453330C393E88646D6E3AB76E6CEF" xlink:type="arc" />
    <link:label id="lab_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C_terseLabel_en-US" xlink:label="lab_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ThingWorx, Inc. [Member]</link:label>
    <link:label id="lab_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C_label_en-US" xlink:label="lab_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ThingWorx, Inc. [Member]</link:label>
    <link:label id="lab_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C_documentation_en-US" xlink:label="lab_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">nonnum:domainItemType [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_ThingWorxInc.Member" xlink:label="loc_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C" xlink:to="lab_pmtc_ThingWorxInc.Member_7DB6EE0B7ABAB004462D6E3AB76E388C" xlink:type="arc" />
    <link:label id="lab_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD_terseLabel_en-US" xlink:label="lab_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2014 Acquisitions [Member]</link:label>
    <link:label id="lab_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD_label_en-US" xlink:label="lab_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2014 Acquisitions [Member]</link:label>
    <link:label id="lab_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD_documentation_en-US" xlink:label="lab_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">2014 Acquisitions [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_A2014AcquisitionsMember" xlink:label="loc_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD" xlink:to="lab_pmtc_A2014AcquisitionsMember_204067EA05E33A1B773E6E3AB76E55CD" xlink:type="arc" />
    <link:label id="lab_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA_terseLabel_en-US" xlink:label="lab_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquired entity name: ColdLight [Member]</link:label>
    <link:label id="lab_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA_label_en-US" xlink:label="lab_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquired entity name: ColdLight [Member]</link:label>
    <link:label id="lab_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA_documentation_en-US" xlink:label="lab_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Acquired entity name: ColdLight [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_AcquiredentitynameColdLightMember" xlink:label="loc_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA" xlink:to="lab_pmtc_AcquiredentitynameColdLightMember_25FAF9579CC52115846D6E3AB76E54AA" xlink:type="arc" />
    <link:label id="lab_pmtc_AxedaandAtegoAcquisitionsMember_BCDD7FC9500080DE48A86E3AB76E6F18_terseLabel_en-US" xlink:label="lab_pmtc_AxedaandAtegoAcquisitionsMember_BCDD7FC9500080DE48A86E3AB76E6F18" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Axeda and Atego Acquisitions [Member]</link:label>
    <link:label id="lab_pmtc_AxedaandAtegoAcquisitionsMember_BCDD7FC9500080DE48A86E3AB76E6F18_label_en-US" xlink:label="lab_pmtc_AxedaandAtegoAcquisitionsMember_BCDD7FC9500080DE48A86E3AB76E6F18" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Axeda and Atego Acquisitions [Member]</link:label>
    <link:label id="lab_pmtc_AxedaandAtegoAcquisitionsMember_BCDD7FC9500080DE48A86E3AB76E6F18_documentation_en-US" xlink:label="lab_pmtc_AxedaandAtegoAcquisitionsMember_BCDD7FC9500080DE48A86E3AB76E6F18" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Axeda and Atego Acquisitions [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_AxedaandAtegoAcquisitionsMember" xlink:label="loc_pmtc_AxedaandAtegoAcquisitionsMember_BCDD7FC9500080DE48A86E3AB76E6F18" xlink:type="locator" />
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    <link:label id="lab_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC_terseLabel_en-US" xlink:label="lab_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquired entity name: Kepware [Member]</link:label>
    <link:label id="lab_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC_label_en-US" xlink:label="lab_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquired entity name: Kepware [Member]</link:label>
    <link:label id="lab_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC_documentation_en-US" xlink:label="lab_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Acquired entity name: Kepware [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_AcquiredentitynameKepwareMember" xlink:label="loc_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC" xlink:to="lab_pmtc_AcquiredentitynameKepwareMember_3818F78F892077E0A90C6E3AB76EBABC" xlink:type="arc" />
    <link:label id="lab_pmtc_AcquiredentitynameVuforiaMember_7258FF4019439F2C1EAE6E3AB76EC904_terseLabel_en-US" xlink:label="lab_pmtc_AcquiredentitynameVuforiaMember_7258FF4019439F2C1EAE6E3AB76EC904" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquired entity name: Vuforia [Member]</link:label>
    <link:label id="lab_pmtc_AcquiredentitynameVuforiaMember_7258FF4019439F2C1EAE6E3AB76EC904_label_en-US" xlink:label="lab_pmtc_AcquiredentitynameVuforiaMember_7258FF4019439F2C1EAE6E3AB76EC904" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquired entity name: Vuforia [Member]</link:label>
    <link:label id="lab_pmtc_AcquiredentitynameVuforiaMember_7258FF4019439F2C1EAE6E3AB76EC904_documentation_en-US" xlink:label="lab_pmtc_AcquiredentitynameVuforiaMember_7258FF4019439F2C1EAE6E3AB76EC904" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Acquired entity name: Vuforia [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_AcquiredentitynameVuforiaMember" xlink:label="loc_pmtc_AcquiredentitynameVuforiaMember_7258FF4019439F2C1EAE6E3AB76EC904" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DeferredTaxLiabilities_369C151D6F730136F40F6E3AB77331F8_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilities_369C151D6F730136F40F6E3AB77331F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Net</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilities_369C151D6F730136F40F6E3AB77331F8_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilities_369C151D6F730136F40F6E3AB77331F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_us-gaap_DeferredTaxLiabilities_369C151D6F730136F40F6E3AB77331F8" xlink:type="locator" />
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    <link:label id="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_4C46802DCFF6634DD3116E3AB774482D_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_4C46802DCFF6634DD3116E3AB774482D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition-related cost</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_4C46802DCFF6634DD3116E3AB774482D_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_4C46802DCFF6634DD3116E3AB774482D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Acquisition Related Costs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_4C46802DCFF6634DD3116E3AB774482D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_6989C4F29FB2C3F5679A6E3AB7749BF7_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_6989C4F29FB2C3F5679A6E3AB7749BF7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payments to Acquire Businesses, Net of Cash Acquired</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_6989C4F29FB2C3F5679A6E3AB7749BF7_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_6989C4F29FB2C3F5679A6E3AB7749BF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Businesses, Net of Cash Acquired</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_6989C4F29FB2C3F5679A6E3AB7749BF7" xlink:type="locator" />
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    <link:label id="lab_us-gaap_CashAcquiredFromAcquisition_472A9AB7F592482201716E3AB7747D1D_terseLabel_en-US" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition_472A9AB7F592482201716E3AB7747D1D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition of businesses, net cash acquired</link:label>
    <link:label id="lab_us-gaap_CashAcquiredFromAcquisition_472A9AB7F592482201716E3AB7747D1D_label_en-US" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition_472A9AB7F592482201716E3AB7747D1D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Acquired from Acquisition</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAcquiredFromAcquisition" xlink:label="loc_us-gaap_CashAcquiredFromAcquisition_472A9AB7F592482201716E3AB7747D1D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAcquiredFromAcquisition_472A9AB7F592482201716E3AB7747D1D" xlink:to="lab_us-gaap_CashAcquiredFromAcquisition_472A9AB7F592482201716E3AB7747D1D" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow_E04FFEC3C33AAE207F3C6E3AB7742EF9_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow_E04FFEC3C33AAE207F3C6E3AB7742EF9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contingent consideration</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow_E04FFEC3C33AAE207F3C6E3AB7742EF9_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow_E04FFEC3C33AAE207F3C6E3AB7742EF9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow_E04FFEC3C33AAE207F3C6E3AB7742EF9" xlink:type="locator" />
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    <link:label id="lab_pmtc_TechnologyPlatformGroupMember_EC27E291F587AB988BC1D9F5B43C6BEA_documentation_en-US" xlink:label="lab_pmtc_TechnologyPlatformGroupMember_EC27E291F587AB988BC1D9F5B43C6BEA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Technology Platform Group [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_TechnologyPlatformGroupMember" xlink:label="loc_pmtc_TechnologyPlatformGroupMember_EC27E291F587AB988BC1D9F5B43C6BEA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_TechnologyPlatformGroupMember_EC27E291F587AB988BC1D9F5B43C6BEA" xlink:to="lab_pmtc_TechnologyPlatformGroupMember_EC27E291F587AB988BC1D9F5B43C6BEA" xlink:type="arc" />
    <link:label id="lab_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950_terseLabel_en-US" xlink:label="lab_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Professional Services [Member]</link:label>
    <link:label id="lab_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950_label_en-US" xlink:label="lab_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Professional Services [Member]</link:label>
    <link:label id="lab_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950_documentation_en-US" xlink:label="lab_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Professional Services [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_ProfessionalServicesMember" xlink:label="loc_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950" xlink:to="lab_pmtc_ProfessionalServicesMember_AE4939311011B05F5E08D9F7033A3950" xlink:type="arc" />
    <link:label id="lab_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818_terseLabel_en-US" xlink:label="lab_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Software Products [Member]</link:label>
    <link:label id="lab_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818_label_en-US" xlink:label="lab_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment, Software Products [Member]</link:label>
    <link:label id="lab_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818_documentation_en-US" xlink:label="lab_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Segment, Software Products [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_SegmentSoftwareProductsMember" xlink:label="loc_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818" xlink:to="lab_pmtc_SegmentSoftwareProductsMember_42EE6D35412642819A24D9F3DFC94818" xlink:type="arc" />
    <link:label id="lab_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233_terseLabel_en-US" xlink:label="lab_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Services [Member]</link:label>
    <link:label id="lab_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233_label_en-US" xlink:label="lab_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment, Services [Member]</link:label>
    <link:label id="lab_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233_documentation_en-US" xlink:label="lab_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Segment, Services [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_SegmentServicesMember" xlink:label="loc_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233" xlink:to="lab_pmtc_SegmentServicesMember_CA2DA6D4CAD481EAEC91D9F3DFC97233" xlink:type="arc" />
    <link:label id="lab_us-gaap_NumberOfReportableSegments_97BA0CC4DAC5F97457C1D9F3DFC92C46_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments_97BA0CC4DAC5F97457C1D9F3DFC92C46" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of reportable segments</link:label>
    <link:label id="lab_us-gaap_NumberOfReportableSegments_97BA0CC4DAC5F97457C1D9F3DFC92C46_label_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments_97BA0CC4DAC5F97457C1D9F3DFC92C46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Reportable Segments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_97BA0CC4DAC5F97457C1D9F3DFC92C46" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NumberOfReportableSegments_97BA0CC4DAC5F97457C1D9F3DFC92C46" xlink:to="lab_us-gaap_NumberOfReportableSegments_97BA0CC4DAC5F97457C1D9F3DFC92C46" xlink:type="arc" />
    <link:label id="lab_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889_terseLabel_en-US" xlink:label="lab_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill and acquired intangible assets</link:label>
    <link:label id="lab_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889_label_en-US" xlink:label="lab_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill And Acquired Intangible Assets By Reportable Segment</link:label>
    <link:label id="lab_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889_documentation_en-US" xlink:label="lab_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Goodwill and Acquired Intangible Assets by Reportable Segment</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment" xlink:label="loc_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889" xlink:to="lab_pmtc_GoodwillAndAcquiredIntangibleAssetsByReportableSegment_993D688575338BAE00DCD9F3DFC93889" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_3A5B4CC762C17C0F227DD9F3DFC9DDD4_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_3A5B4CC762C17C0F227DD9F3DFC9DDD4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated aggregate future amortization expense for intangible assets, 2016</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_3A5B4CC762C17C0F227DD9F3DFC9DDD4_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_3A5B4CC762C17C0F227DD9F3DFC9DDD4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_3A5B4CC762C17C0F227DD9F3DFC9DDD4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_3A5B4CC762C17C0F227DD9F3DFC9DDD4" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_3A5B4CC762C17C0F227DD9F3DFC9DDD4" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E95C86F7008C27C293C8D9F3DFC94C68_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E95C86F7008C27C293C8D9F3DFC94C68" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated aggregate future amortization expense for intangible assets, 2017</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E95C86F7008C27C293C8D9F3DFC94C68_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E95C86F7008C27C293C8D9F3DFC94C68" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Two</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E95C86F7008C27C293C8D9F3DFC94C68" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E95C86F7008C27C293C8D9F3DFC94C68" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_E95C86F7008C27C293C8D9F3DFC94C68" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_FBB3142D2D7FCD344F0DD9F3DFC943D2_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_FBB3142D2D7FCD344F0DD9F3DFC943D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated aggregate future amortization expense for intangible assets, 2018</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_FBB3142D2D7FCD344F0DD9F3DFC943D2_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_FBB3142D2D7FCD344F0DD9F3DFC943D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Three</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_FBB3142D2D7FCD344F0DD9F3DFC943D2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_FBB3142D2D7FCD344F0DD9F3DFC943D2" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_FBB3142D2D7FCD344F0DD9F3DFC943D2" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_8573938CCF5008B15DF5D9F3DFC9B55B_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_8573938CCF5008B15DF5D9F3DFC9B55B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated aggregate future amortization expense for intangible assets, 2019</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_8573938CCF5008B15DF5D9F3DFC9B55B_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_8573938CCF5008B15DF5D9F3DFC9B55B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Four</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_8573938CCF5008B15DF5D9F3DFC9B55B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_8573938CCF5008B15DF5D9F3DFC9B55B" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_8573938CCF5008B15DF5D9F3DFC9B55B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4DD5FDA6EB64A3B3860FD9F3DFC90676_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4DD5FDA6EB64A3B3860FD9F3DFC90676" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated aggregate future amortization expense for intangible assets, 2020</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4DD5FDA6EB64A3B3860FD9F3DFC90676_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4DD5FDA6EB64A3B3860FD9F3DFC90676" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Five</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4DD5FDA6EB64A3B3860FD9F3DFC90676" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4DD5FDA6EB64A3B3860FD9F3DFC90676" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4DD5FDA6EB64A3B3860FD9F3DFC90676" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_CC79C689B3CADE2A06C2D9F3DFC9C45D_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_CC79C689B3CADE2A06C2D9F3DFC9C45D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated aggregate future amortization expense for intangible assets, thereafter</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_CC79C689B3CADE2A06C2D9F3DFC9C45D_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_CC79C689B3CADE2A06C2D9F3DFC9C45D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, after Year Five</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_CC79C689B3CADE2A06C2D9F3DFC9C45D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_CC79C689B3CADE2A06C2D9F3DFC9C45D" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_CC79C689B3CADE2A06C2D9F3DFC9C45D" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_4332213EC3F22BE22F866B152825027B_label_en-US" xlink:label="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_4332213EC3F22BE22F866B152825027B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_4332213EC3F22BE22F866B152825027B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_4332213EC3F22BE22F866B152825027B" xlink:to="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_4332213EC3F22BE22F866B152825027B" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_9018F82FAA81EC2C74A36B15282515B7_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_9018F82FAA81EC2C74A36B15282515B7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss), net of tax:</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_9018F82FAA81EC2C74A36B15282515B7_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_9018F82FAA81EC2C74A36B15282515B7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_9018F82FAA81EC2C74A36B15282515B7" xlink:type="locator" />
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    <link:label id="lab_pmtc_AcquiredentitynameAxedaMember_7D0707122709B3FD37D265FB58C93C38_terseLabel_en-US" xlink:label="lab_pmtc_AcquiredentitynameAxedaMember_7D0707122709B3FD37D265FB58C93C38" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquired entity name: Axeda [Member]</link:label>
    <link:label id="lab_pmtc_AcquiredentitynameAxedaMember_7D0707122709B3FD37D265FB58C93C38_label_en-US" xlink:label="lab_pmtc_AcquiredentitynameAxedaMember_7D0707122709B3FD37D265FB58C93C38" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquired entity name: Axeda [Member]</link:label>
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    <link:label id="lab_pmtc_VuforiaAcquisitionMember_FC5AD42D4B136ACC435865FB58C935CA_terseLabel_en-US" xlink:label="lab_pmtc_VuforiaAcquisitionMember_FC5AD42D4B136ACC435865FB58C935CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vuforia Acquisition [Member]</link:label>
    <link:label id="lab_pmtc_VuforiaAcquisitionMember_FC5AD42D4B136ACC435865FB58C935CA_label_en-US" xlink:label="lab_pmtc_VuforiaAcquisitionMember_FC5AD42D4B136ACC435865FB58C935CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vuforia Acquisition [Member]</link:label>
    <link:label id="lab_pmtc_VuforiaAcquisitionMember_FC5AD42D4B136ACC435865FB58C935CA_documentation_en-US" xlink:label="lab_pmtc_VuforiaAcquisitionMember_FC5AD42D4B136ACC435865FB58C935CA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Vuforia Acquisition [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_VuforiaAcquisitionMember" xlink:label="loc_pmtc_VuforiaAcquisitionMember_FC5AD42D4B136ACC435865FB58C935CA" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillLineItems_91386E8630078CB8B48B65FB58CA5AAA_label_en-US" xlink:label="lab_us-gaap_GoodwillLineItems_91386E8630078CB8B48B65FB58CA5AAA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_91386E8630078CB8B48B65FB58CA5AAA" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillRollForward_ABBD6D9775EED2FC273C65FB58CAF07C_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_ABBD6D9775EED2FC273C65FB58CAF07C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill [Roll Forward]</link:label>
    <link:label id="lab_us-gaap_GoodwillRollForward_ABBD6D9775EED2FC273C65FB58CAF07C_label_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_ABBD6D9775EED2FC273C65FB58CAF07C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill [Roll Forward]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_us-gaap_GoodwillRollForward_ABBD6D9775EED2FC273C65FB58CAF07C" xlink:type="locator" />
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    <link:label id="lab_us-gaap_Goodwill_56C59A5826C7BF68545465FB58CA1627_periodStartLabel_en-US" xlink:label="lab_us-gaap_Goodwill_56C59A5826C7BF68545465FB58CA1627" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance, beginning of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_56C59A5826C7BF68545465FB58CA1627" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_B605FC55ED4D4FA939A365FB58CAB17B_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_B605FC55ED4D4FA939A365FB58CAB17B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment of purchase price from escrow</link:label>
    <link:label id="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_B605FC55ED4D4FA939A365FB58CAB17B_label_en-US" xlink:label="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_B605FC55ED4D4FA939A365FB58CAB17B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill, Purchase Accounting Adjustments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GoodwillPurchaseAccountingAdjustments" xlink:label="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_B605FC55ED4D4FA939A365FB58CAB17B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_A7110DE3D8E3E4C5571E65FB58CA5D69_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_A7110DE3D8E3E4C5571E65FB58CA5D69" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation and other adjustments</link:label>
    <link:label id="lab_us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_A7110DE3D8E3E4C5571E65FB58CA5D69_label_en-US" xlink:label="lab_us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_A7110DE3D8E3E4C5571E65FB58CA5D69" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill, Translation and Purchase Accounting Adjustments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments" xlink:label="loc_us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_A7110DE3D8E3E4C5571E65FB58CA5D69" xlink:type="locator" />
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    <link:label id="lab_us-gaap_Goodwill_D523A8419F31D9BEA25F65FB58CAF876_periodEndLabel_en-US" xlink:label="lab_us-gaap_Goodwill_D523A8419F31D9BEA25F65FB58CAF876" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance, end of period</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_D523A8419F31D9BEA25F65FB58CAF876" xlink:to="lab_us-gaap_Goodwill_D523A8419F31D9BEA25F65FB58CAF876" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_011A841EB62C057DE77668C73645EE27_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_011A841EB62C057DE77668C73645EE27" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Award, Tranche Three [Member]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_011A841EB62C057DE77668C73645EE27_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_011A841EB62C057DE77668C73645EE27" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Award, Tranche Three [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_011A841EB62C057DE77668C73645EE27" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncomeStatementAbstract_07DA089359B70C5CE8D953FAD36FBC5A_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_07DA089359B70C5CE8D953FAD36FBC5A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement [Abstract]</link:label>
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    <link:label id="lab_us-gaap_RevenuesAbstract_8EF6C483BABCCBEB47E153FAD36F2125_terseLabel_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_8EF6C483BABCCBEB47E153FAD36F2125" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue:</link:label>
    <link:label id="lab_us-gaap_RevenuesAbstract_8EF6C483BABCCBEB47E153FAD36F2125_label_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_8EF6C483BABCCBEB47E153FAD36F2125" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenues [Abstract]</link:label>
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    <link:label id="lab_pmtc_Subscriptionlicenserevenue_4EEFA74B42016C5422AD53FAD36F9DA0_terseLabel_en-US" xlink:label="lab_pmtc_Subscriptionlicenserevenue_4EEFA74B42016C5422AD53FAD36F9DA0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subscription</link:label>
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    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_Subscriptionlicenserevenue" xlink:label="loc_pmtc_Subscriptionlicenserevenue_4EEFA74B42016C5422AD53FAD36F9DA0" xlink:type="locator" />
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    <link:label id="lab_us-gaap_MaintenanceRevenue_E4F01AE1694A238D332053FAD36F99E6_terseLabel_en-US" xlink:label="lab_us-gaap_MaintenanceRevenue_E4F01AE1694A238D332053FAD36F99E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Support</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaintenanceRevenue" xlink:label="loc_us-gaap_MaintenanceRevenue_E4F01AE1694A238D332053FAD36F99E6" xlink:type="locator" />
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    <link:label id="lab_pmtc_Totalrecurringsoftwarerevenue_CF0103B508C8666B68EA53FAD36F98D2_totalLabel_en-US" xlink:label="lab_pmtc_Totalrecurringsoftwarerevenue_CF0103B508C8666B68EA53FAD36F98D2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total recurring software revenue</link:label>
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    <link:label id="lab_pmtc_Totalrecurringsoftwarerevenue_CF0103B508C8666B68EA53FAD36F98D2_documentation_en-US" xlink:label="lab_pmtc_Totalrecurringsoftwarerevenue_CF0103B508C8666B68EA53FAD36F98D2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total recurring software revenue</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_Totalrecurringsoftwarerevenue" xlink:label="loc_pmtc_Totalrecurringsoftwarerevenue_CF0103B508C8666B68EA53FAD36F98D2" xlink:type="locator" />
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    <link:label id="lab_pmtc_Perpetuallicenserevenue_A227FEC1C388BA3763F653FAD36F84A7_terseLabel_en-US" xlink:label="lab_pmtc_Perpetuallicenserevenue_A227FEC1C388BA3763F653FAD36F84A7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Perpetual license</link:label>
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    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_Perpetuallicenserevenue" xlink:label="loc_pmtc_Perpetuallicenserevenue_A227FEC1C388BA3763F653FAD36F84A7" xlink:type="locator" />
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    <link:label id="lab_pmtc_Votinginterestindomesticsubsidiariespledgedagainstcreditfacility_BA164640B524869BB02D6B15272EE2AF_terseLabel_en-US" xlink:label="lab_pmtc_Votinginterestindomesticsubsidiariespledgedagainstcreditfacility_BA164640B524869BB02D6B15272EE2AF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Voting interest in domestic subsidiaries pledged against credit facility</link:label>
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    <link:label id="lab_pmtc_ComponentOfBaseRateBasisSpreadOnFederalFundsEffectiveRate_D0FBC604B7EFE3971CD86B15272EC323_terseLabel_en-US" xlink:label="lab_pmtc_ComponentOfBaseRateBasisSpreadOnFederalFundsEffectiveRate_D0FBC604B7EFE3971CD86B15272EC323" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit facility, revolving loan, basis spread on federal funds effective rate</link:label>
    <link:label id="lab_pmtc_ComponentOfBaseRateBasisSpreadOnFederalFundsEffectiveRate_D0FBC604B7EFE3971CD86B15272EC323_label_en-US" xlink:label="lab_pmtc_ComponentOfBaseRateBasisSpreadOnFederalFundsEffectiveRate_D0FBC604B7EFE3971CD86B15272EC323" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Component of Base Rate, Basis Spread on Federal Funds Effective Rate</link:label>
    <link:label id="lab_pmtc_ComponentOfBaseRateBasisSpreadOnFederalFundsEffectiveRate_D0FBC604B7EFE3971CD86B15272EC323_documentation_en-US" xlink:label="lab_pmtc_ComponentOfBaseRateBasisSpreadOnFederalFundsEffectiveRate_D0FBC604B7EFE3971CD86B15272EC323" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Component of Base Rate, Basis Spread on Federal Funds Effective Rate</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_ComponentOfBaseRateBasisSpreadOnFederalFundsEffectiveRate" xlink:label="loc_pmtc_ComponentOfBaseRateBasisSpreadOnFederalFundsEffectiveRate_D0FBC604B7EFE3971CD86B15272EC323" xlink:type="locator" />
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    <link:label id="lab_pmtc_ComponentOfBaseRateBasisSpreadOnAdjustedLibor_71CF7306CB5EE978196E6B15272EAC2B_terseLabel_en-US" xlink:label="lab_pmtc_ComponentOfBaseRateBasisSpreadOnAdjustedLibor_71CF7306CB5EE978196E6B15272EAC2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit facility, revolving loan, basis spread on adjusted LIBOR</link:label>
    <link:label id="lab_pmtc_ComponentOfBaseRateBasisSpreadOnAdjustedLibor_71CF7306CB5EE978196E6B15272EAC2B_label_en-US" xlink:label="lab_pmtc_ComponentOfBaseRateBasisSpreadOnAdjustedLibor_71CF7306CB5EE978196E6B15272EAC2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Component of Base Rate, Basis Spread on Adjusted LIBOR</link:label>
    <link:label id="lab_pmtc_ComponentOfBaseRateBasisSpreadOnAdjustedLibor_71CF7306CB5EE978196E6B15272EAC2B_documentation_en-US" xlink:label="lab_pmtc_ComponentOfBaseRateBasisSpreadOnAdjustedLibor_71CF7306CB5EE978196E6B15272EAC2B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Component of Base Rate, Basis Spread on Adjusted LIBOR</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_ComponentOfBaseRateBasisSpreadOnAdjustedLibor" xlink:label="loc_pmtc_ComponentOfBaseRateBasisSpreadOnAdjustedLibor_71CF7306CB5EE978196E6B15272EAC2B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_14924D6BBDADF8ADE6086B15272E5062_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_14924D6BBDADF8ADE6086B15272E5062" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit facility, revolving loan, commitment fees percentage</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_14924D6BBDADF8ADE6086B15272E5062_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_14924D6BBDADF8ADE6086B15272E5062" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Commitment Fee Percentage</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityCommitmentFeePercentage" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_14924D6BBDADF8ADE6086B15272E5062" xlink:type="locator" />
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    <link:label id="lab_pmtc_InvestmentInForeignSubsidiariesAuthorizedAmount_717EFA35B533E4F76FD26B15272E43BD_terseLabel_en-US" xlink:label="lab_pmtc_InvestmentInForeignSubsidiariesAuthorizedAmount_717EFA35B533E4F76FD26B15272E43BD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment limit in foreign subsidiaries</link:label>
    <link:label id="lab_pmtc_InvestmentInForeignSubsidiariesAuthorizedAmount_717EFA35B533E4F76FD26B15272E43BD_label_en-US" xlink:label="lab_pmtc_InvestmentInForeignSubsidiariesAuthorizedAmount_717EFA35B533E4F76FD26B15272E43BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment in Foreign Subsidiaries Authorized Amount</link:label>
    <link:label id="lab_pmtc_InvestmentInForeignSubsidiariesAuthorizedAmount_717EFA35B533E4F76FD26B15272E43BD_documentation_en-US" xlink:label="lab_pmtc_InvestmentInForeignSubsidiariesAuthorizedAmount_717EFA35B533E4F76FD26B15272E43BD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment in Foreign Subsidiaries Authorized Amount</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_InvestmentInForeignSubsidiariesAuthorizedAmount" xlink:label="loc_pmtc_InvestmentInForeignSubsidiariesAuthorizedAmount_717EFA35B533E4F76FD26B15272E43BD" xlink:type="locator" />
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    <link:label id="lab_pmtc_CashInvestmentLimitForAcquisitionOfBusiness_F82A13E17C98C06CB3F86B15272F1C39_terseLabel_en-US" xlink:label="lab_pmtc_CashInvestmentLimitForAcquisitionOfBusiness_F82A13E17C98C06CB3F86B15272F1C39" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash investment limit for acquisition of business</link:label>
    <link:label id="lab_pmtc_CashInvestmentLimitForAcquisitionOfBusiness_F82A13E17C98C06CB3F86B15272F1C39_label_en-US" xlink:label="lab_pmtc_CashInvestmentLimitForAcquisitionOfBusiness_F82A13E17C98C06CB3F86B15272F1C39" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Investment Limit For Acquisition of Business</link:label>
    <link:label id="lab_pmtc_CashInvestmentLimitForAcquisitionOfBusiness_F82A13E17C98C06CB3F86B15272F1C39_documentation_en-US" xlink:label="lab_pmtc_CashInvestmentLimitForAcquisitionOfBusiness_F82A13E17C98C06CB3F86B15272F1C39" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash Investment Limit For Acquisition of Business</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_CashInvestmentLimitForAcquisitionOfBusiness" xlink:label="loc_pmtc_CashInvestmentLimitForAcquisitionOfBusiness_F82A13E17C98C06CB3F86B15272F1C39" xlink:type="locator" />
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    <link:label id="lab_pmtc_DebtCovenantLeverageRatioMaximum_5EDA9C37ADB5B14F95C66B15272F7FCB_terseLabel_en-US" xlink:label="lab_pmtc_DebtCovenantLeverageRatioMaximum_5EDA9C37ADB5B14F95C66B15272F7FCB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum leverage ratio allowed under debt covenant</link:label>
    <link:label id="lab_pmtc_DebtCovenantLeverageRatioMaximum_5EDA9C37ADB5B14F95C66B15272F7FCB_label_en-US" xlink:label="lab_pmtc_DebtCovenantLeverageRatioMaximum_5EDA9C37ADB5B14F95C66B15272F7FCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Covenant, Leverage Ratio, Maximum</link:label>
    <link:label id="lab_pmtc_DebtCovenantLeverageRatioMaximum_5EDA9C37ADB5B14F95C66B15272F7FCB_documentation_en-US" xlink:label="lab_pmtc_DebtCovenantLeverageRatioMaximum_5EDA9C37ADB5B14F95C66B15272F7FCB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consolidated funded indebtedness to consolidated trailing four quarters EBITDA</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_DebtCovenantLeverageRatioMaximum" xlink:label="loc_pmtc_DebtCovenantLeverageRatioMaximum_5EDA9C37ADB5B14F95C66B15272F7FCB" xlink:type="locator" />
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    <link:label id="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A_terseLabel_en-US" xlink:label="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio</link:label>
    <link:label id="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A_label_en-US" xlink:label="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio</link:label>
    <link:label id="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A_documentation_en-US" xlink:label="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio" xlink:label="loc_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A" xlink:to="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatio_21012A7A5EF83258C5CB6B15272F7A4A" xlink:type="arc" />
    <link:label id="lab_pmtc_DebtCovenantFixedChargeCoverageRatioMinimum_768FD754E3D5FA66F0446B15272FA153_terseLabel_en-US" xlink:label="lab_pmtc_DebtCovenantFixedChargeCoverageRatioMinimum_768FD754E3D5FA66F0446B15272FA153" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum fixed charge coverage ratio allowed under debt covenant</link:label>
    <link:label id="lab_pmtc_DebtCovenantFixedChargeCoverageRatioMinimum_768FD754E3D5FA66F0446B15272FA153_label_en-US" xlink:label="lab_pmtc_DebtCovenantFixedChargeCoverageRatioMinimum_768FD754E3D5FA66F0446B15272FA153" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Covenant, Fixed Charge Coverage Ratio, Minimum</link:label>
    <link:label id="lab_pmtc_DebtCovenantFixedChargeCoverageRatioMinimum_768FD754E3D5FA66F0446B15272FA153_documentation_en-US" xlink:label="lab_pmtc_DebtCovenantFixedChargeCoverageRatioMinimum_768FD754E3D5FA66F0446B15272FA153" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consolidated trailing four quarters EBITDA less capital expenditures to consolidated fixed charges</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_DebtCovenantFixedChargeCoverageRatioMinimum" xlink:label="loc_pmtc_DebtCovenantFixedChargeCoverageRatioMinimum_768FD754E3D5FA66F0446B15272FA153" xlink:type="locator" />
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    <link:label id="lab_pmtc_LeverageRatioActual_3313D60082501DA8019C6B15272F2478_terseLabel_en-US" xlink:label="lab_pmtc_LeverageRatioActual_3313D60082501DA8019C6B15272F2478" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leverage ratio, actual</link:label>
    <link:label id="lab_pmtc_LeverageRatioActual_3313D60082501DA8019C6B15272F2478_label_en-US" xlink:label="lab_pmtc_LeverageRatioActual_3313D60082501DA8019C6B15272F2478" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leverage Ratio, Actual</link:label>
    <link:label id="lab_pmtc_LeverageRatioActual_3313D60082501DA8019C6B15272F2478_documentation_en-US" xlink:label="lab_pmtc_LeverageRatioActual_3313D60082501DA8019C6B15272F2478" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Actual leverage ratio -- metric for determining compliance with debt covenant</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_LeverageRatioActual" xlink:label="loc_pmtc_LeverageRatioActual_3313D60082501DA8019C6B15272F2478" xlink:type="locator" />
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    <link:label id="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B_terseLabel_en-US" xlink:label="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio, actual</link:label>
    <link:label id="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B_label_en-US" xlink:label="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio, actual</link:label>
    <link:label id="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B_documentation_en-US" xlink:label="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio, actual</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual" xlink:label="loc_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B" xlink:to="lab_pmtc_DebtInstrumentCovenantComplianceSeniorDebtLeverageRatioactual_E155DE229CAA5555748C6B15272F524B" xlink:type="arc" />
    <link:label id="lab_pmtc_FixedChargeCoverageRatioActual_9118FCD19C6E88B6AFE06B15272F555C_terseLabel_en-US" xlink:label="lab_pmtc_FixedChargeCoverageRatioActual_9118FCD19C6E88B6AFE06B15272F555C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed charge coverage ratio, actual</link:label>
    <link:label id="lab_pmtc_FixedChargeCoverageRatioActual_9118FCD19C6E88B6AFE06B15272F555C_label_en-US" xlink:label="lab_pmtc_FixedChargeCoverageRatioActual_9118FCD19C6E88B6AFE06B15272F555C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Charge Coverage Ratio, Actual</link:label>
    <link:label id="lab_pmtc_FixedChargeCoverageRatioActual_9118FCD19C6E88B6AFE06B15272F555C_documentation_en-US" xlink:label="lab_pmtc_FixedChargeCoverageRatioActual_9118FCD19C6E88B6AFE06B15272F555C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Actual fixed charge coverage ratio -- metric for determining debt covenant compliance</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_FixedChargeCoverageRatioActual" xlink:label="loc_pmtc_FixedChargeCoverageRatioActual_9118FCD19C6E88B6AFE06B15272F555C" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsOfDebtIssuanceCosts_679E52327D732797EA886B15272F842B_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDebtIssuanceCosts_679E52327D732797EA886B15272F842B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit facility, origination costs</link:label>
    <link:label id="lab_us-gaap_PaymentsOfDebtIssuanceCosts_679E52327D732797EA886B15272F842B_label_en-US" xlink:label="lab_us-gaap_PaymentsOfDebtIssuanceCosts_679E52327D732797EA886B15272F842B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments of Debt Issuance Costs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_679E52327D732797EA886B15272F842B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LineOfCreditFacilityPeriodicPaymentInterest_ABDB7DC84C6C14125EE96B15272F127E_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityPeriodicPaymentInterest_ABDB7DC84C6C14125EE96B15272F127E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit facility, periodic interest payment</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_0B9761EB997EFD2122706B15272FD72F_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_0B9761EB997EFD2122706B15272FD72F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Gross</link:label>
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    <link:label id="lab_pmtc_Debtnetofunamortizeddebtissuancecost_BEF6264958CD366027376B15272F4F8C_documentation_en-US" xlink:label="lab_pmtc_Debtnetofunamortizeddebtissuancecost_BEF6264958CD366027376B15272F4F8C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">debt net of unamortized debt issuance cost</link:label>
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    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_1D8F82E9A538173B20406B12A34DCFBD_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_1D8F82E9A538173B20406B12A34DCFBD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_1D8F82E9A538173B20406B12A34DCFBD" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_75E68AC0EA085998C3C46B12A350B46F_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_75E68AC0EA085998C3C46B12A350B46F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from operating activities:</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_75E68AC0EA085998C3C46B12A350B46F" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ShareBasedCompensation_2B87A790796A16358A926B12A351D384_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_2B87A790796A16358A926B12A351D384" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Stock-based compensation</link:label>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_C6D8EFE1AE93BD1457A46B12A3544C11_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_C6D8EFE1AE93BD1457A46B12A3544C11" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accrued income taxes, net of income tax receivable</link:label>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_387FF4702307959BC8B96B12A35480FF_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_387FF4702307959BC8B96B12A35480FF" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Other noncurrent assets</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_387FF4702307959BC8B96B12A35480FF" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_01F927FC1CF7B925A1366B12A3540F3C_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_01F927FC1CF7B925A1366B12A3540F3C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01F927FC1CF7B925A1366B12A3540F3C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01F927FC1CF7B925A1366B12A3540F3C" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_01F927FC1CF7B925A1366B12A3540F3C" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F3181F761C4A427D6D96B12A3547369_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F3181F761C4A427D6D96B12A3547369" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from investing activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F3181F761C4A427D6D96B12A3547369_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F3181F761C4A427D6D96B12A3547369" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F3181F761C4A427D6D96B12A3547369" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_20B36B8C9E59B5724B166B12A3547641_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_20B36B8C9E59B5724B166B12A3547641" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Additions to property and equipment</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_20B36B8C9E59B5724B166B12A3547641_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_20B36B8C9E59B5724B166B12A3547641" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_20B36B8C9E59B5724B166B12A3547641" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_CA15F338B7F2DE89B19A6B12A3541D93" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_784FA716886A15E882C66B12A3547250_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_784FA716886A15E882C66B12A3547250" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used by investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_784FA716886A15E882C66B12A3547250_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_784FA716886A15E882C66B12A3547250" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromLinesOfCredit_E228743B64E97EF6BE086B12A3546A58_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromLinesOfCredit_E228743B64E97EF6BE086B12A3546A58" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings under credit facility</link:label>
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    <link:label id="lab_pmtc_RestructuringPlan2016Member_56C9337466052BC990876E2E0BC1B0CC_label_en-US" xlink:label="lab_pmtc_RestructuringPlan2016Member_56C9337466052BC990876E2E0BC1B0CC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2016 [Member]</link:label>
    <link:label id="lab_pmtc_RestructuringPlan2016Member_56C9337466052BC990876E2E0BC1B0CC_documentation_en-US" xlink:label="lab_pmtc_RestructuringPlan2016Member_56C9337466052BC990876E2E0BC1B0CC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2016 [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_RestructuringPlan2016Member" xlink:label="loc_pmtc_RestructuringPlan2016Member_56C9337466052BC990876E2E0BC1B0CC" xlink:type="locator" />
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    <link:label id="lab_pmtc_RestructuringPlan2015Member_BA5B145FDB7627D61BCE6E2E0BC1D500_terseLabel_en-US" xlink:label="lab_pmtc_RestructuringPlan2015Member_BA5B145FDB7627D61BCE6E2E0BC1D500" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2015</link:label>
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    <link:label id="lab_pmtc_RestructuringPlan2015Member_BA5B145FDB7627D61BCE6E2E0BC1D500_documentation_en-US" xlink:label="lab_pmtc_RestructuringPlan2015Member_BA5B145FDB7627D61BCE6E2E0BC1D500" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2015 [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_RestructuringPlan2015Member" xlink:label="loc_pmtc_RestructuringPlan2015Member_BA5B145FDB7627D61BCE6E2E0BC1D500" xlink:type="locator" />
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    <link:label id="lab_pmtc_RestructuringPlan2014Member_3251575D4113966416A56E2E0BC13A1C_terseLabel_en-US" xlink:label="lab_pmtc_RestructuringPlan2014Member_3251575D4113966416A56E2E0BC13A1C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2014</link:label>
    <link:label id="lab_pmtc_RestructuringPlan2014Member_3251575D4113966416A56E2E0BC13A1C_label_en-US" xlink:label="lab_pmtc_RestructuringPlan2014Member_3251575D4113966416A56E2E0BC13A1C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2014 [Member]</link:label>
    <link:label id="lab_pmtc_RestructuringPlan2014Member_3251575D4113966416A56E2E0BC13A1C_documentation_en-US" xlink:label="lab_pmtc_RestructuringPlan2014Member_3251575D4113966416A56E2E0BC13A1C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2014 [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_RestructuringPlan2014Member" xlink:label="loc_pmtc_RestructuringPlan2014Member_3251575D4113966416A56E2E0BC13A1C" xlink:type="locator" />
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    <link:label id="lab_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A_terseLabel_en-US" xlink:label="lab_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2013</link:label>
    <link:label id="lab_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A_label_en-US" xlink:label="lab_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2013 [Member]</link:label>
    <link:label id="lab_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A_documentation_en-US" xlink:label="lab_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restructuring Plan 2013 [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_RestructuringPlan2013Member" xlink:label="loc_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A" xlink:to="lab_pmtc_RestructuringPlan2013Member_4A095D047DB50579C90D6E2E0BC1534A" xlink:type="arc" />
    <link:label id="lab_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated_355B2C24EA0612726B656E2E0BC130A2_terseLabel_en-US" xlink:label="lab_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated_355B2C24EA0612726B656E2E0BC130A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restructuring and Related Cost, Number of Positions Eliminated</link:label>
    <link:label id="lab_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated_355B2C24EA0612726B656E2E0BC130A2_label_en-US" xlink:label="lab_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated_355B2C24EA0612726B656E2E0BC130A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring and Related Cost, Number of Positions Eliminated</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated" xlink:label="loc_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated_355B2C24EA0612726B656E2E0BC130A2" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OperatingLeasesRentExpenseMinimumRentals_56528145D730454091B86E2E0BC2D43E_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesRentExpenseMinimumRentals_56528145D730454091B86E2E0BC2D43E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Leases, Rent Expense, Minimum Rentals</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesRentExpenseMinimumRentals_56528145D730454091B86E2E0BC2D43E_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesRentExpenseMinimumRentals_56528145D730454091B86E2E0BC2D43E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Rent Expense, Minimum Rentals</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesRentExpenseMinimumRentals" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseMinimumRentals_56528145D730454091B86E2E0BC2D43E" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_E64517E5350C67DD98BF6E2E0BC201D2_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_E64517E5350C67DD98BF6E2E0BC201D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Leases, Sublease Revenue</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_E64517E5350C67DD98BF6E2E0BC201D2_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_E64517E5350C67DD98BF6E2E0BC201D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Income Statement, Sublease Revenue</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue" xlink:label="loc_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_E64517E5350C67DD98BF6E2E0BC201D2" xlink:type="locator" />
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    <link:label id="lab_pmtc_NumberOfEmployeesTerminated_A44543161B5660F559BA6E2E0BC2C9EF_terseLabel_en-US" xlink:label="lab_pmtc_NumberOfEmployeesTerminated_A44543161B5660F559BA6E2E0BC2C9EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of employees associated with costs</link:label>
    <link:label id="lab_pmtc_NumberOfEmployeesTerminated_A44543161B5660F559BA6E2E0BC2C9EF_label_en-US" xlink:label="lab_pmtc_NumberOfEmployeesTerminated_A44543161B5660F559BA6E2E0BC2C9EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Employees Terminated</link:label>
    <link:label id="lab_pmtc_NumberOfEmployeesTerminated_A44543161B5660F559BA6E2E0BC2C9EF_documentation_en-US" xlink:label="lab_pmtc_NumberOfEmployeesTerminated_A44543161B5660F559BA6E2E0BC2C9EF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of Employees Terminated</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_NumberOfEmployeesTerminated" xlink:label="loc_pmtc_NumberOfEmployeesTerminated_A44543161B5660F559BA6E2E0BC2C9EF" xlink:type="locator" />
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    <link:label id="lab_pmtc_AcquiredentitynameKepwareMember_0654207A01584E7D4CFB6E3AB54D52CE_verboseLabel_en-US" xlink:label="lab_pmtc_AcquiredentitynameKepwareMember_0654207A01584E7D4CFB6E3AB54D52CE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Acquired entity name: Kepware [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_AcquiredentitynameKepwareMember" xlink:label="loc_pmtc_AcquiredentitynameKepwareMember_0654207A01584E7D4CFB6E3AB54D52CE" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillAcquiredDuringPeriod_1DC4CA4661163CB1AB8B6E3AB553FD59_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAcquiredDuringPeriod_1DC4CA4661163CB1AB8B6E3AB553FD59" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
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    <link:label id="lab_pmtc_Businessacquisitionacquirednetassetsexcludinggoodwillintangibleassetsandcash_BC3F77710EBD9C5AC33A6E3AB5531C08_terseLabel_en-US" xlink:label="lab_pmtc_Businessacquisitionacquirednetassetsexcludinggoodwillintangibleassetsandcash_BC3F77710EBD9C5AC33A6E3AB5531C08" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets and liabilities, net</link:label>
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    <link:label id="lab_pmtc_FromLicenseandSubscriptiontoSoftwareMemberDomain_20F6C31B526099B549B465FB5A7474B2_documentation_en-US" xlink:label="lab_pmtc_FromLicenseandSubscriptiontoSoftwareMemberDomain_20F6C31B526099B549B465FB5A7474B2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">From License and Subscription to Software [Member]</link:label>
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    <link:label id="lab_pmtc_FromGeneralandAdministrationtoSellingandMarketingMember_BB7078DEF3F8B57AB4D265FB5A745AA3_terseLabel_en-US" xlink:label="lab_pmtc_FromGeneralandAdministrationtoSellingandMarketingMember_BB7078DEF3F8B57AB4D265FB5A745AA3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">From General and Administration to Selling and Marketing [Member]</link:label>
    <link:label id="lab_pmtc_FromGeneralandAdministrationtoSellingandMarketingMember_BB7078DEF3F8B57AB4D265FB5A745AA3_label_en-US" xlink:label="lab_pmtc_FromGeneralandAdministrationtoSellingandMarketingMember_BB7078DEF3F8B57AB4D265FB5A745AA3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">From General and Administration to Selling and Marketing [Member]</link:label>
    <link:label id="lab_pmtc_FromGeneralandAdministrationtoSellingandMarketingMember_BB7078DEF3F8B57AB4D265FB5A745AA3_documentation_en-US" xlink:label="lab_pmtc_FromGeneralandAdministrationtoSellingandMarketingMember_BB7078DEF3F8B57AB4D265FB5A745AA3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">From General and Administration to Selling and Marketing [Member]</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_FromGeneralandAdministrationtoSellingandMarketingMember" xlink:label="loc_pmtc_FromGeneralandAdministrationtoSellingandMarketingMember_BB7078DEF3F8B57AB4D265FB5A745AA3" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RestatementAdjustmentMember_A715ADAAD2A0A824C1A365FB5A753FAA_label_en-US" xlink:label="lab_us-gaap_RestatementAdjustmentMember_A715ADAAD2A0A824C1A365FB5A753FAA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restatement Adjustment [Member]</link:label>
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    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_NumberofRevenueCategories" xlink:label="loc_pmtc_NumberofRevenueCategories_0B25A04932F051DBA8CA65FB5A7518CC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pmtc_NumberofRevenueCategories_0B25A04932F051DBA8CA65FB5A7518CC" xlink:to="lab_pmtc_NumberofRevenueCategories_0B25A04932F051DBA8CA65FB5A7518CC" xlink:type="arc" />
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    <link:label id="lab_pmtc_NumberofCostofRevenueCategories_8722BF89C61678DC252B65FB5A752DF4_documentation_en-US" xlink:label="lab_pmtc_NumberofCostofRevenueCategories_8722BF89C61678DC252B65FB5A752DF4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of Cost of Revenue Categories</link:label>
    <link:loc xlink:href="pmtc-20160930.xsd#pmtc_NumberofCostofRevenueCategories" xlink:label="loc_pmtc_NumberofCostofRevenueCategories_8722BF89C61678DC252B65FB5A752DF4" xlink:type="locator" />
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