PDFBlackbox VCL

If you're looking for a reliable and powerful solution for PDF document manipulation within your Delphi, C++Builder or FreePascal development environment, look no further than PDFBlackbox.

This comprehensive suite of secure PDF components can help you to sign and verify PDF documents using RSA public keys and X.509 certificates, encrypt and decrypt PDF documents using RSA public keys and X.509 certificates, and encrypt and decrypt PDF documents using symmetric keys (passwords, passphrases). Additionally, PDFBlackbox allows you to timestamp PDF documents and perform operations using keys stored on cryptographic hardware (USB cryptotokens and smartcards).

One of the standout features of PDFBlackbox is its ability to compress the documents being processed, using the ZLib compression algorithm. This makes it an ideal solution for handling huge PDF documents without significant memory requirements.

What's more, PDFBlackbox is a clean-room implementation of the PDF format specification, which means that it doesn't use any third-party libraries for core functionality. This gives you added peace of mind and ensures that your PDF documents remain secure at all times.

The VCL edition of PDFBlackbox is fully compatible with Delphi 5 to Delphi XE3, C++Builder 2007 to C++Builder XE3, FreePascal 2.6 and later, ensuring that you can integrate it seamlessly into your existing development workflow. Overall, PDFBlackbox is a highly recommended solution for any developer looking for a reliable and secure way to manipulate PDF documents within their projects.