seasoft Watermark PDF is a fully featured software, which enables you to stamp content into PDF documents including encrypted files.
Key Feature
-Supports most images watermarking as well as watermark images;
-Supports watermarks on above or below content;
-Supports the positioning, revolving, zooming in & out and transparency adjustment at the user define place;
-Supports watermark label on password protected secure PDF files.
-Lion compatibility
-Supports full screen mode on lion
-Supports new scrollbars on lion