Welcome to Nitro’s Free PDF Reader

A free PDF reader for Windows only*

Download free to create, review, sign, and share PDFs.

Download Nitro PDF Reader

What can Nitro’s free PDF Reader do for you?

Learn more about what makes Nitro Reader the #1 Adobe Acrobat™ PDF Reader alternative and the best free PDF reader on the market.


  • Create PDFs from virtually any Windows application and from over 300 file formats.
  • Simply drag-and-drop files to instantly create a document.
  • Customize your PDFs with tools like custom colors, font embedding, page size, orientation, and output quality. Or, keep it simple with preset options.


  • Add comments, address feedback, highlight, underline, or strike-out text to make collaboration a breeze.
  • Quickly view PDFs, add text, and collaborate—without the learning curve—thanks to the intuitive user interface.
  • When you open a PDF with digital signatures, comments, or bookmarks, the review pane will automatically display, helping you know what to review first.


  • QuickSign any document in seconds without leaving your desk.
  • Simply scan or photograph your signature to create your own unique signature profile.
  • Password-protect your documents to keep signatures safe and secure.


  • All PDFs created with Nitro Reader are 100% compatible with other readers—so you can securely share documents with anyone, anywhere, at any time.
  • Colleagues can also create multiple QuickSign profiles, making it easy to share back and forth between teams and businesses.

Nitro products are feature-rich and extremely user friendly, and we saw a significant impact on user productivity.

—Aiden Curran
IT Service Delivery Manager (Europe 1)

Looking to do more with PDFs? Try Nitro Pro 11 instead!

Scan, edit, convert, and secure your documents like a pro. Say hello to premier PDF performance (with a minor price tag).

Nitro Reader vs. Nitro Pro 11

Nitro Reader 5

Nitro Pro 11

View, print, email, and share PDF files

Convert to and from PDF, MS Word, Excel, PowerPoint formats

Highlight, underline, cross out, and add notes to text and pages

Make scanned PDFs searchable and editable with OCR technology

Edit, insert, delete, crop, replace, and reorder pages

Combine multiple files and file types into one PDF

Permanently and securely redact sensitive information

eSign, collaborate, and share seamlessly with Nitro Cloud integration

Download Nitro Reader » Try Nitro Pro for free »

Need to edit, convert, or combine files?

Learn more about PDF editing »

OCTOBER 15, 2017:


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OCTOBER 15, 2017:


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