PDFBlackbox.NET enables .NET applications to compress, encrypt, and sign PDF documents. It provides a managed component collection that supports both symmetric and certificate-based (X.509) encryption and signing.
This software can also perform operations using keys stored on cryptographic hardware such as USB cryptotokens and smart cards. PDFBlackbox even compresses the documents being processed using a ZLib compression algorithm, making it an efficient tool for handling large PDF documents without significant memory requirements.
PDFBlackbox.NET is a collection of managed .NET components designed to help you encrypt, sign, and compress PDF documents from your .NET Framework applications. The components are a clean-room implementation of the PDF format specification, which means they don't use any third-party libraries for core functionality.
PDFBlackbox.NET is also available as an edition that can be easily integrated into Visual Studio 2012, 2010, 2008, 2005, or Delphi Prism. To use this software, you'll need to have .NET Framework 4.5, 4.0, 3.5, 2.0, Silverlight (5.0 or 4.0), Mono 2.0, or Mono for Android, NET CF (3.5, 2.0) installed. Overall, if you're looking for a comprehensive PDF manipulation tool, PDFBlackbox.NET is a solid choice for your software needs.
Version 10.0: N/A
Version 8.1: PAdES support
Version 8.0: N/A
Version 7.1:
Support for timestamping of existing signatures
AutoAdjustEncoding property for the signature widget
Improved signature insertion time for extra-large signature objects (big CRLs, OCSP responses or other revocation information embedded to the signature)
Version 5.2: N/A
Version 5.1: N/A
Version 5.0: N/A
Version 4.4: N/A
Version 4.3: N/A
Version 4.2: N/A