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Welcome to A PDF, do you know Adobe Acrobat is not the only solution to view and modify PDF (Portable Document Format) files? They provide Windows with a series of affordable and free PDF tools. In addition, they also provide customized services to meet your personalized needs. A PDF is a quick desktop utility that allows you to add image and text watermarks to Acrobat PDF documents in bulk. You can create watermarks using file names, company logos, signatures, product pictures, etc. Another convenient function is direct printing and hot directory monitor. They support displaying watermarks only when printing PDF documents and hiding them when viewing them. You can also see their service: Windows service program, which can run in the background and automatically watermark PDF files.