PDF XChange Viewer does not ask much for system requirements. Thus, its latest version was released years ago - way back in 2018. Tracker Software stopped further development of PDF XChange Viewer to focus on another tool, PDF XChange Editor. Many tech reviewers graded PDF XChange Viewer as a reliable tool and a top candidate for PDF editing software. You can use it to view, edit, convert, or mark up a PDF. For the fillable PDF forms on our web site, you should be able to use at least Adobe Reader, Foxit Reader, and PDF-XChange Viewer to fill out (via the keyboard) and print such completed forms.PDF XChange Viewer is a light but powerful PDF tool published by Tracker Software on June 21, 2007. While most of the PDF documents that you will encounter on our web site can be viewed by any of the above software choices, PDFs that are housed outside of our web site may require you to use Adobe Reader to view them. For those who are looking specifically for free software that has been designed using open standards (rather than proprietary ones), a list of such software is on this site.

More free alternatives to Adobe Reader are listed on this site. Foxit Reader ( for Windows, Linux, and mobile devices).

Their features may not be as complete as those of Adobe Reader – for example, they may not be able to properly display everything in a complex PDF file created by the most recent versions of Adobe's PDF creation software, or they may not be able to allow text entry in a PDF with fillable fields – but they are much smaller in size and many of them can be run from portable devices such as USB flash drives: There are other free software options that can be used to view most PDF files. Adobe Reader ( for Windows, MacOS, Linux, mobile devices, and more).

The creator of the PDF format, Adobe Systems, offers their free Adobe Reader software: Documents stored as PDF ('Portable Document Format') files require a special viewer in order to open them.

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