PDF Studio Viewer™ is an easy to use, full featured PDF Reader that is a reliable alternative to Adobe® Acrobat® Reader.

- Fully compliant with the new PDF 2.0 standards & Adobe PDF Specifications
- User friendly design makes PDF creation, markup, and editing easier
- Top customer satisfaction rate & responsive customer service

[View PDFs]
- Display PDFs in high fidelity with full Retina & 5k screen support
- Advanced view tools including the loupe, pan and zoom
- View PDFs as single page, continuous scroll, facing (2 up), facing continuous, cover and cover continuous
- View and save file attachments
- Show / hide PDF layers
- Display rulers & grids
- Open encrypted (password protected) documents (including 256 bit encryption)

[Advanced User Interface]
- Modern ribbon toolbar (classic toolbar also available)
- Quick navigation with thumbnail, bookmark and comment panes
- Search text in multiple documents using advanced search tool

[Annotate & Markup PDFs]
- Text annotations: Typewriter, callout, text box, & sticky note
- Text markups: Text highlight, text underline, text cross-out, text squiggly, text replace, & text instert
- Shape Annotations: Circle, polygon, square, cloud, line, arrow, pencil

[Fill & Save Forms]
- Fill Forms: Text fields, Multi line text areas, Combo box, Radio button, Check box
- Display and validates digital signatures
- Support for JavaScript formatting and validation

[Advanced Printing]
- Advanced dialog with print preview
- Print current view option
- Duplex (2 sided) printing
- Multiple pages per sheet
- Booklet printing

If you need more advanced reviewing and editing features, Qoppa Software also publishes PDF Studio Standard and Pro editions which are great alternatives to Adobe Acrobat®, offered at 1/3rd the price and NO subscription required. See for more information.

**Customer Support**

Step-by-step tutorials as well as answers to most common questions on just about anything you would need.
- Help Tab -> Online User Guide:
- Help Tab -> Knowledge Base:

[Within PDF Studio]
Contact us from within PDF Studio by going to Help Tab > Email Support and sending us an email or question. This is the most effective way for us to assist you as it will provide us a copy of the PDF Studio error logs which will help us to resolve any problems you may have.

Feedback, comments or issues? Contact us directly at

What's New

Version 2018.2.2

- Digital signature validation improvements when byte range is incorrect
- Fixed bug with links being selected when clicked on with hand tool
- Other internal bug fixes

Ratings and Reviews

L.Holmann ,

Try it out

You won't regret it


Qoppa Software LLC
83.9 MB
OS X 10.7 or later, 64-bit processor
English, French, German
Age Rating
Rated 4+
© 2002-Present Qoppa Software. All rights reserved.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.