There is an update available for PDFLib, which is available since february 2019. The current version is extremly outdated.
Current Version: 7.0.5
New Supported Version: 9.2.0
Can be downloaded here: https://www.pdflib.com/download/pdflib-product-family/
Changelog for version 9: https://www.pdflib.com/fileadmin/pdflib/changelog/changes-PDFlib-9.2.0.txt
Thanks for taking a look at it.
PDFLib and PDFLib Lite are two different products. The port is for the open source version, that reached its EoL with the 7.0.5 release.