OXPS is just like PDF but is based on Open XML Paper Specification and was developed by Microsoft. It has some perks such as its integration with Microsoft services and the fact that it is based on ...

PDFill PDF Tools is a free useful suite of utilities that will help you to change the layout of your PDF documents. These free tools will allow you to merge and add watermarks to PDF files; reorder, ...

Ghostscript gives you the power to combine files, convert files, and much more, all from the command line. The default PostScript language output level is 2. Using "1.5" is also supported, which is ...