It was claimed that 'users can get the same functionality with an expired free trial of Nitro PDF Pro'. The company sunset their PDF reader, Nitro Reader, in 2017. Nitro also manages several free document conversion sites.

Subscription services include cloud-based user management, deployment and analytics tools. Products include a PDF editor, a browser-based application for electronic signatures and PDF productivity tools. In June 2021, the company purchased PDFPen, a Mac, iPad, and iPhone PDF editing app. In 2018, Nitro PDF Pro was used by more than 650,000 businesses.

In 2018, it launched the Nitro Productivity and eSigning Suite. In 2015, the company reported 1 million licenses sold. Nitro Software was founded in Melbourne, Australia, by a team of three, as an alternative PDF software to Adobe Acrobat. Xodo also makes its tools available in a browser, so there’s no need to download it at all.Nitro PDF Pro is an application used to create and edit Portable Document Format (PDF) files and digital documents. Again, it’s completely free and is full-featured. Xodo PDF Reader and Annotator is also an excellent option. Unlike Nitro PDF Reader, these are free programs. Two of the most popular are Foxit Reader and Adobe Reader DC. Are there any good free alternatives to Nitro PDF Reader? Regarding the data within your PDFs, Nitro Pro offers password-protected encryption. It’s safest to download programs directly from the developer's websites to avoid PUPs. Nitro’s target customers are businesses, so the company knows its software needs to be safe to download. Pricing for Nitro Pro starts with a one-time payment of $157 for a single user. If you want to retain access to those features after 14 days, you’ll need to buy the relevant program. You can download a free trial version that gives you full access to the complete Nitro Productivity Suite, including Nitro Pro and Nitro Sign. You’re also able to see if a PDF document is digitally signed and if it contains bookmarks and comments. You can create PDFs from other document types, highlight text, and add sticky notes. Despite its name, Nitro PDF Reader does substantially more than just allow you to read PDF files – even in the free version.

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