PDF Watermark is designed to help users watermark their PDF files for high security level. This application is quite easy to use with its simple and straightforward interface, even you have no experience or training before. Now it is 100% free. Download and start watermarking your PDF files! Sleek and clean user interface. Support batch process and watermark hundreds PDF files in no time. Add text watermark on your PDF files. Add image watermark on your PDF files. Advanced settings match your various requirements. Support Windows 10/8/7/Vista/XP. Simple and intuitive graphic interface. Support putting text watermark on PDF files in batch process. Support putting image watermark on PDF files in batch process. Support setting color, fontsize, rotate degree, and opacity for text watermark. Support setting image, scale ratio and opacity for image watermark. Support putting text watermark or image watermark on all pages or specific pages. Support tilling text watermark on PDF files for higher security. Support tilling image watermark on PDF files for higher security. Support adding PDF files by drag and drop. 100% FREE FREE technical support. FREE update.