Customization of the watermark gives an enhancement of copyright to PDF Documents. You can customize the font size color of a watermark. Use the Softaken PDF Watermark application to recognize your PDFs as a logo, image, or text. The tool can watermark your PDF document at one time on every page of the PDF document. The best feature of the tool is the customized font size and color of the watermark of your choice. the tool permits an increase or decrease in the opacity level of a watermark. The tool permits enough flexibility in setting position to the top, left, right, center, and middle. The software is a user-friendly application that a non-technician can understand and operate without technical help. You can try this tool for testing before buying.