activePDF Toolkit is the Swiss Army Knife for PDF - virtually any PDF manipulation task can be automated through Toolkits robust API. With activePDF Toolkit you can:

Apply watermarks and stamp images and text into PDF documents.
Merge multiple PDF documents into a single PDF file, adding bookmarks for easy navigation.
Populate PDF forms with database data, or allow users to save filled-in PDF forms.

Detect PDF tampering through Toolkits fingerprint technology.
Secure important documents through PDF encryption.
Add dynamic headers, footers and page numbering to PDF documents.
Convert over 40 image types to PDF on the fly.
Set viewer preferences and optimize PDF for fast web display.