#5091
In the process of editing PDF documents, if you need to make a short comment on a long document; fill in or sign a form or agreement, and return it by email; proofread, review and correct a document right on your screen; make some notes or drawings right on the pages; illustrate your ideas or suggestions; grade student papers right on your PC, laptop or Tablet PC, and so on. In cases like these, you need a tool like PDF Annotator.

#4653
As we all know, PDF document format has been very widely used now. And, this document format can only be opened or edited with a specialized editor. Even so, PDF files are not that easy to edit. This case, you can give Infix PDF Editor a try. It is a powerful, fast, flexible, comprehensive and easy-to-use PDF editing software. AppNee regards it as an unofficial successor of the classic but discontinued Foxit Advanced PDF Editor (I suspect they both use the same source code).