<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019fc94a-c6f5-7759-a7d5-e109b6df08ac,g:df6e0909-13a8-4583-8fc6-24ede56543fd-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://gcredbdc.com/role/Cover" xlink:type="simple" xlink:href="gpifi-20260731.xsd#Cover"/>
  <link:presentationLink xlink:role="http://gcredbdc.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019fc94a-c6f5-7c1b-9fea-836681548aed" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_DocumentType_019fc94a-c6f5-7c1b-9fea-836681548aed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019fc94a-c6f5-7c43-87af-038f93a88a24" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_DocumentPeriodEndDate_019fc94a-c6f5-7c43-87af-038f93a88a24" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019fc94a-c6f5-71bf-871e-ffcf6b0e6e64" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityRegistrantName_019fc94a-c6f5-71bf-871e-ffcf6b0e6e64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019fc94a-c6f5-71f0-b4ae-a4b4a7e11be7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019fc94a-c6f5-71f0-b4ae-a4b4a7e11be7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019fc94a-c6f5-7f49-9445-8943cf938233" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityFileNumber_019fc94a-c6f5-7f49-9445-8943cf938233" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019fc94a-c6f5-7399-9394-b99005090e7c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityTaxIdentificationNumber_019fc94a-c6f5-7399-9394-b99005090e7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019fc94a-c6f5-787a-8c2a-7b2d1dc9d5ce" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityAddressAddressLine1_019fc94a-c6f5-787a-8c2a-7b2d1dc9d5ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019fc94a-c6f5-7f21-ac02-26115aa7753c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityAddressAddressLine2_019fc94a-c6f5-7f21-ac02-26115aa7753c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019fc94a-c6f5-7937-82c2-eccfdbcbb9c8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityAddressCityOrTown_019fc94a-c6f5-7937-82c2-eccfdbcbb9c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019fc94a-c6f5-7d25-a8b5-ed93791425c7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityAddressStateOrProvince_019fc94a-c6f5-7d25-a8b5-ed93791425c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019fc94a-c6f5-740b-991f-da6a6419cd73" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityAddressPostalZipCode_019fc94a-c6f5-740b-991f-da6a6419cd73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019fc94a-c6f5-7c66-af14-fdbf40fdc072" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_CityAreaCode_019fc94a-c6f5-7c66-af14-fdbf40fdc072" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019fc94a-c6f5-7585-9f6f-4ce0e7af4ade" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_LocalPhoneNumber_019fc94a-c6f5-7585-9f6f-4ce0e7af4ade" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019fc94a-c6f5-7095-b731-2f9bf9c4fa07" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_WrittenCommunications_019fc94a-c6f5-7095-b731-2f9bf9c4fa07" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019fc94a-c6f5-7933-9a11-7237887e62ae" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_SolicitingMaterial_019fc94a-c6f5-7933-9a11-7237887e62ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019fc94a-c6f5-783f-b2f7-88a570f605d7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_PreCommencementTenderOffer_019fc94a-c6f5-783f-b2f7-88a570f605d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019fc94a-c6f5-7b71-ba15-d5b458cc0534" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019fc94a-c6f5-7b71-ba15-d5b458cc0534" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019fc94a-c6f5-72fc-99a8-403ff02605e8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityEmergingGrowthCompany_019fc94a-c6f5-72fc-99a8-403ff02605e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_019fc94a-c6f5-7a7b-be91-d100f5031e01" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityExTransitionPeriod"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityExTransitionPeriod_019fc94a-c6f5-7a7b-be91-d100f5031e01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019fc94a-c6f5-7ba8-b53d-6c63bbfa9ec6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_AmendmentFlag_019fc94a-c6f5-7ba8-b53d-6c63bbfa9ec6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019fc94a-c6f5-76c7-adfb-d46c7cae7ea9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019fc94a-c6f5-7a60-a4fc-204a0322041e" xlink:to="loc_dei_EntityCentralIndexKey_019fc94a-c6f5-76c7-adfb-d46c7cae7ea9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
