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PDFlib PLOP DS

PDF Linearization, Optimization, Protection and Digital Signatures.

Published by PDFlib
Distributed by ComponentSource since 2003

Version: 5.5 Updated: Feb 28, 2023

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Please note: PDFlib PLOP DS was officially retired as of December 19th 2024. If you are interested in this product, consider PDFlib instead.

PDFlib PLOP DS 5.2

Released: Feb 23, 2017

Updates in 5.2

Features

Several enhancements for digital signatures and certificate security including the following:

  • Supports EMSA-PSS encoding scheme for RSA signatures.
  • Supports OAEP for RSA certificate security.
  • Reject input documents with certification signatures and permissions=nochanges unless the "sacrifice" option has been supplied to avoid breaking existing certification signature.
  • No longer requires "conformance=extended" for NIST-15 elliptic curves other than P-256/P-384/P-521 since these are supposed to be supported in Acrobat.
  • Increased the default value of "timestampsize" to accommodate changes implemented in the configuration of a commonly used TSA.