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<?xml version="1.0" encoding="windows-1252"?> |
<!-- XBRL Document Created with Wdesk from Workiva, formerly WebFilings --> |
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| <roleRef roleURI="http://www.pgi.com/role/EmployeeBenefitPlansDetails" xlink:href="pgi-20141231.xsd#EmployeeBenefitPlansDetails" xlink:type="simple"/> |
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| <roleRef roleURI="http://www.pgi.com/role/EquityBasedCompensationScheduleOfEquityBasedCompensationExpenseForRestrictedStockAwardsAndNonQualifiedStockOptionsDetails" xlink:href="pgi-20141231.xsd#EquityBasedCompensationScheduleOfEquityBasedCompensationExpenseForRestrictedStockAwardsAndNonQualifiedStockOptionsDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/EquityBasedCompensationScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityDetails" xlink:href="pgi-20141231.xsd#EquityBasedCompensationScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityDetails" xlink:type="simple"/> |
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| <roleRef roleURI="http://www.pgi.com/role/GoodwillAndIntangibleAssets" xlink:href="pgi-20141231.xsd#GoodwillAndIntangibleAssets" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/GoodwillAndIntangibleAssetsEstimatedAmortizationExpenseDetails" xlink:href="pgi-20141231.xsd#GoodwillAndIntangibleAssetsEstimatedAmortizationExpenseDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsDetails" xlink:href="pgi-20141231.xsd#GoodwillAndIntangibleAssetsIntangibleAssetsDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/GoodwillAndIntangibleAssetsTables" xlink:href="pgi-20141231.xsd#GoodwillAndIntangibleAssetsTables" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxes" xlink:href="pgi-20141231.xsd#IncomeTaxes" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxesContinuingOperationsDetails" xlink:href="pgi-20141231.xsd#IncomeTaxesContinuingOperationsDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" xlink:href="pgi-20141231.xsd#IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxesDeferredTaxAssetsValuationAllowancesDetails" xlink:href="pgi-20141231.xsd#IncomeTaxesDeferredTaxAssetsValuationAllowancesDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxesDetails" xlink:href="pgi-20141231.xsd#IncomeTaxesDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:href="pgi-20141231.xsd#IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxesNarrativeDetails" xlink:href="pgi-20141231.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails" xlink:href="pgi-20141231.xsd#IncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IncomeTaxesTables" xlink:href="pgi-20141231.xsd#IncomeTaxesTables" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/Indebtedness" xlink:href="pgi-20141231.xsd#Indebtedness" xlink:type="simple"/> |
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| <roleRef roleURI="http://www.pgi.com/role/IndebtednessScheduleOfLongTermDebtAndCapitalLeaseObligationsDetails" xlink:href="pgi-20141231.xsd#IndebtednessScheduleOfLongTermDebtAndCapitalLeaseObligationsDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/IndebtednessScheduleOfLongTermDebtAndCapitalLeaseObligationsDetailsCalc2" xlink:href="pgi-20141231.xsd#IndebtednessScheduleOfLongTermDebtAndCapitalLeaseObligationsDetailsCalc2" xlink:type="simple"/> |
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| <roleRef roleURI="http://www.pgi.com/role/PropertyAndEquipmentNet" xlink:href="pgi-20141231.xsd#PropertyAndEquipmentNet" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/PropertyAndEquipmentNetCapitalLeasesDetails" xlink:href="pgi-20141231.xsd#PropertyAndEquipmentNetCapitalLeasesDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/PropertyAndEquipmentNetDetails" xlink:href="pgi-20141231.xsd#PropertyAndEquipmentNetDetails" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/PropertyAndEquipmentNetTables" xlink:href="pgi-20141231.xsd#PropertyAndEquipmentNetTables" xlink:type="simple"/> |
| <roleRef roleURI="http://www.pgi.com/role/RestructuringCosts" xlink:href="pgi-20141231.xsd#RestructuringCosts" xlink:type="simple"/> |
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