MerlinOne - MerlinOne offers digital asset management software solutions news to media, non-profits, universities, government and corporations.
iSafePDF - iSafePDF is a free open source PDF protection software.
Brandfolder - One link to all your marketing assets. Brandfolder is your convenient source to visually organize, quickly find and easily share all your final brand assets.
PDF Unshare - pdf unshare, pdf protection, protect, share, updf, prevent, Lock PDF, Encrypt PDF, PDF Access, Lock, PDF, Encrypt, Access
Canto - Canto is an Atom/RSS feed reader for the console that is meant to be quick, concise, and colorful.
PDFTK Builder - PDFTK Builder is a free graphical interface to for PDFTK, making it much easier to use.