PDF Image Stamp

automatically image stamp your documents quickly and easily
Mac PDF2Text

convert your PDF documents into plain text ascii files
PDF Maker Pilot

a pdf maker for creating pdf forms that can be filled out with free adobe
PDF Bookmark

extracting bookmarks from existing pdf's, applying bookmarks to pdf's
Print & Save

reduce print costs: print several pages on one page or reduce color intensity.
OCR in .Net

ironocr is an advanced ocr library for .net developers to use in c# and vb.net
The C# PDF Library

a c# pdf library "html to pdf" and "aspx to pdf" functionality for .net dev