Try the power of Nitro PDF Pro with unlimited free PDF creating, viewing and sharing.

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Nitro regularly releases updated products with new features, enhancements and bug fixes. These installers are for Online customers only. Business and Enterprise customers seeking updated product should submit a request via Nitro Support here.

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Stay productive with Nitro’s free PDF reader features, even after your trial

Nitro’s free PDF reader features go beyond the typical viewing and annotation tools most other popular PDF readers provide.


  • Create PDFs from virtually any Windows application and from over 300 file formats.
  • Drag-and-drop files into Nitro to instantly create a PDF.
  • View and print standard PDFs that any PDF viewer can display.


  • Highlight text and add sticky notes and comments to share feedback.
  • Upon opening a PDF, easily see if the document contains digital signatures, comments, or bookmarks for faster reviewing.
  • Quickly view and collaborate on PDFs with an intuitive user interface that works like Microsoft Office apps.


  • QuickSign any document in seconds without leaving your desk.
  • Simply type, draw, or upload a photo of your signature or initials to create your own unique signature profiles.
  • Continue sending eSignature requests through your integrated Nitro Sign account.


  • Attach your PDF documents as email attachments with one click for quick sharing.
  • Continue sharing documents through your integrated Nitro Sign account.
  • All PDFs created with Nitro PDF Pro’s free PDF reader features can be viewed in other PDF solutions, so you can share with anyone.
Experience the Productivity of Nitro PDF Pro
Test drive our premium PDF editing features—including text and image editing, document conversion, redaction, and more. You may fall in love with Nitro PDF Pro’s advanced features, or you may realize that its PDF reader features are all you need. Either way, you’ll be powered by Nitro!
Nitro isn’t relaxing its efforts to help people and organizations improve their digitized workflows. Nitro PDF Pro is now fully integrated with Nitro Sign, making it easier than ever to create a document, share it, and get it signed. As a whole, document workflows just feel simpler and more seamless.
PDF reader features vs. Nitro PDF Pro
PDF reader featuresNitro PDF Pro
Microsoft ribbon interface
Convert to and from PDF files, MS Word, Excel, PowerPoint
Export pages to different image files
Nitro Sign integration
Make any PDF searchable with text recognition technology
Edit and insert text, paragraphs, and graphics
Edit pages: insert, delete, crop, replace, and more
Permanently and securely redact sensitive information
Electronic Signatures
A leader in e-signatures
Nitro Sign recognized as a Leader in the 2022 GigaOm Radar Report for eSignatures. Learn more about GigaOm’s evaluation and analysis of the top eSignature vendors in the category.