This announcement is surely going to make many of our PDF Studio Viewer users very happy! The new version of Qoppa’s Free PDF Reader, PDF Studio Viewer 2018, is adding new annotating function. This feature is available for users on all platforms: Windows, macOS and Linux.

Adding Annotations

The following annotation and review tools are available in Qoppa’s free PDF Reader:

Text Annotations: Typewriter, Callout, Text Box, Sticky Note

Text Markups: Text Highlight, Text Underline, Text Cross-out, Text Squiggly, Text Replace, Text Delete

Shape Annotations: Circle, Polygon, Square, Cloud, Line, Arrow, Pencil

Annotations in PDF Studio Viewer 2018
Annotations in PDF Studio Viewer 2018


Compatibility with Adobe

PDF Studio Viewer follows all the PDF specifications and is thus fully compliant with Adobe products. All annotations added in PDF Studio can be viewed in any compatible PDF readers such as Adobe Reader and on any platforms.