TPDFDocument
llPDFlib3.6
llPDFlib5.2
http://www.sybrex.com/products/development/
http://www.sybrex.com/products/development/llpdflib/download.php
10/19/2015
llPDFLib Releases Its Version 6.0
Delphi library for creating PDF documents on the fly was released.
Whats new:
JBIG2 Compression for b/w images
Digital signatures
Some changes in engine
原文：http://www.cnblogs.com/cb168/p/4950433.html