PDFBlackbox (VCL) 6.0
PDFBlackbox supports full range of PDF security operations, including
* 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;
* support for cryptographic hardware (USB cryptotokens and smartcards)
* ZLib compression;
* stream-based processing, which lets you handle huge amounts of data without significant memory requirements;
* support for PDF format versions 1.3 to 1.7
PDFBlackbox components are a clean-room implementation of PDF format specification, which don`t use any third-party libraries for core functionality.
VCL edition of PDFBlackbox can be used with Delphi 4-7, Delphi 2005-2007, C++Builder 2007, Kylix 3, FreePascal.
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