A watermark is a semi-transparent image that usually contains a logo or seal to identify who created a document or image. If you want to watermark a PDF file, you can either insert the watermark into ...

A colleague asked an interesting question on an e-mail list I belong to. He wanted to know how to print a subscriber’s e-mail address and a time stamp in light grey on each page of a PDF file they ...

PDF is the most widely used document format these days, and very often we face situations where we want to perform simple tasks like merging or splitting PDFs, but our common PDF readers are not able ...

A PDF editor is an indispensable tool for someone who regularly works with PDF files. But just like other programs, not all PDF tools are created equal. Most free tools come with just the basic PDF ...