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 ...

Adding a signature to your emails allows you to include important information by default with all of your correspondence. Outlook 2013 supports the inclusion of JPG, GIF, PNG and BMP image files ...

Gimp is normally used to create or manipulate images files, but can also work with PDFs if you understand how it works and what it's limits are. If you’ve never used Gimp—a free image editor available ...