PDF to PDF is described as 'Perform operations on your PDF files. You can merge PDF files into one, or split PDF onto several parts. You can set password and user permissions, change metadata, and protect the content from copying. And finally you are able to modify your PDF' and is a PDF Editor in the Office & Productivity category. There are more than 10 alternatives to PDF to PDF for a variety of platforms, including Windows, Linux, Mac, Online / Web-based and BSD. The best alternative is PDF-XChange Editor, which is free. Other great apps like PDF to PDF are Adobe Acrobat DC (Paid), Master PDF Editor (Freemium), PDFill (Freemium) and PDFedit (Free, Open Source).
Allowing both the creation (from Image file formats, Image Scanners/Web CAMS and text files etc) and manipulation of Adobe compatible PDF files, PDF-Tools is an ideal tool to compliment your existing PDF creation application or as a stand alone tool in its own right!
VeryPDF PDF Editor is an easy-to-use application designed for users familiar with Microsoft Office and similar applications. VeryPDF PDF Editor provides tools to enable you freely write your own comments to the PDF document and share the comments with others.