

PDF-XChange Viewer is a great PDF editor that for anyone who makes frequent use of this document type. It is incredibly easy to move PDFs from your PC to PDF-XChange Viewer Portable as well, making the program even more desirable for frequent PDF users and readers. PDF-XChange Viewer Portable is executable from a USB stick and offers the same features as the desktop version. Additional cool features include a snapshot tool, document preview when opening PDFs and a huge range of interface language options. Nitro PDF Pro is a clean and simple PDF editor for Windows and Mac (Mac users can choose between PDF Pro and the less feature-filled PDF Pro Essentials). This feature is very welcome, as the PDF-XChange Viewer Portable help is not very good. There are also tooltips, so you know what you are doing before you click.

Commenting, underlining, stamping, attaching files and creating text boxes are all easily done, and can be modified and removed in the click of a button. The main exception is the ability to add or remove pages. Merging files, customizing the reader’s ribbon tab converting other file formats to PDF, building and filling PDF forms, and securing your PDFs are other features of the reader.

Although the free version doesn't allow you to create documents from scratch, it does let you edit extensively. With the Microsoft Office-like Nitro PDF Pro interface, you can create, edit, view, review, annotate and read PDF files. PDF-XChange Viewer Portable's editing options are also impressive.
