Free Commercial Downloads
Get software you may need to view some content on government websites.
When you click on a link below, you will leave our site and go to a non-government website. Publications.USA.gov does not endorse these sites. We provide the links so you can get the free software needed to view some documents on some websites.
Portable Document Format (PDF)
Some documents on government websites are in Portable Document Format (PDF). PDFs allow you to view publications in their original format regardless of what type of computer, browser, or operating system you use to access the Internet. In order to view, navigate, and print PDF documents, you'll need the free Acrobat Reader software. Instructions and a troubleshooting guide are available on the Adobe website. If you use a screen reader, you can download Adobe software to make PDF files more accessible.
e-Reader Formats (EPUB, Mobi)
Publications.USA.gov provides electronic publications in two of the most popular eReader formats: .epub and Mobi. The .epub format is an open standard for e-books created by the International Digital Publishing Forum and is the most widely supported vendor-independent XML-based e-book format. The only notable device lacking integrated support for the epub format is the Amazon Kindle. To learn how to download publications to your Kindle, please access the Amazon Support web page, or view our short video to see how easy it is to download an epub document to your electronic device.
RSS (Really Simple Syndication) Aggregators
RSS feeds, (which have the extension ".xml", ".rss", ".sfm", ".cfm", ".rdf", ".aspx", or ".php"), require installation and use of RSS aggregator software. An RSS aggregator allows you to subscribe to an RSS feed. There are many aggregators available; some are free and some are available for sale. RSS feeds are commonly used on weblogs (blogs), news websites, and other places with frequently updated content. An RSS aggregator gathers material from websites that you tell it to scan, and it brings new information from those sites to you. It's a convenient format because it allows you to view all the new content from multiple sources in one location on your desktop.