With PDFBlackbox you can complete your PDF processing applications with outstanding security features, such as password-based and certificate-based encryption, certificate-based signing and compression of your PDF documents.
General PDF features, supported by PDFBlackbox are:
* support for PDF format versions 1.3 to 1.6;
* PDF standard password-based data encryption using MD5 + RC4/40 or RC4/128 algorithms;
* PDF certificate-based public key data encryption using RSA algorithm and PKCS#7 format;
* certificate-based data signing using SHA1 with RSA algorithms and PKCS#1 or PKCS#7 format;
* data timestamping using TSP (Timstamping Protocol);
* support for Cryptocards and USB Crypto Tokens;
* ZLib compression
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