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Nitro’s Free PDF Reader Is Now Better Than Ever

Accomplish more with your documents! With this free PDF viewer and reader download, you can create, review, sign, and share PDFs.

Download now. No commitment or credit card required.

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

Nitro’s free PDF reader offers useful productivity features 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.
  • 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.
  • Sus compañeros también pueden crear diversos perfiles de QuickSign, lo que facilita enviar y devolver muchas veces el archivo entre equipos o empresas.

And that’s not all there is to love!

Included with your download of our free PDF reader is two weeks of free access to Nitro Pro,
our full-featured PDF editor—with no risk, no commitment.

For two weeks, you’ll have the opportunity to test drive a complete PDF editor to determine
if you need more advanced features, such as editing, conversion, redaction, and more.
You may fall in love with Nitro Pro, or you may realize a PDF viewer is all you need.
Either way, you’ll still come away with the best PDF reader on the market.

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)

Nitro's Free PDF Reader vs. Nitro Pro

Free Version
(After 14-day trial)

Pro Version
(First 14 days)

Ver, imprimir, enviar por correo electrónico y compartir archivos PDF

Marcar, subrayar, tachar y añadir notas en el texto y las páginas

Print to PDF from any Microsoft Office app

Convertir archivos a partir de PDF y Word, Excel y PowerPoint de Microsoft, y hacia estos formatos

Obtener PDF escaneados que permiten búsquedas y modificaciones con la tecnología OCR

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

Combinar múltiples archivos y tipos de archivo en un solo PDF

Censure información confidencial de forma permanente y segura

Añadir la firma electrónica a archivos, colaborar en ellos y compartirlos de forma fluida con la integración que ofrece Nitro Cloud