It’s a full-featured collaborative office suite that can handle office documents of different types and PDF files. ONLYOFFICE Image source: ONLYOFFICE is a very interesting option if you are looking for an open source PDF viewer. They are also often free of charge, which allows you to do other things with your money. In comparison with proprietary software, open source PDF readers offer the same features but are more reliable and transparent. In our list, you will find some of the best open source tools that you can use to view the content of PDF files. You don’t need to install complex PDF editing tools if you just open files for viewing and save documents to PDF for printing. In many cases, a PDF reader is all you need to work with PDF files. They can also be able to perform some other basic operations, like adding annotations and saving PDFs to other formats, but they don’t usually allow you to change or modify information in your files. It’s an application that allows you to open PDF files on your device and view their content. In this article, you will find a brief overview of the best open source PDF readers so that you can choose one for your work or personal use on different platforms.įirst of all, let’s be clear on that the phrases “PDF reader” and “PDF viewer” mean the same sort of thing and can be used as synonyms. Nowadays everyone who has to deal with electronic documents needs a PDF reader due to the popularity and widespread distribution of this format.

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