PDF Viewer FAQ

How can I annotate PDF documents?

Posted in General Updated on Mar 26 2022.
Written by Akshat Patel

You can add various types of annotations to your PDFs (highlights, notes, ink drawings, images, ...)

Posted in General Updated on Mar 26 2022.
Written by Akshat Patel

Edit PNG and JPG documents as if they were PDFs in PDF Viewer Pro.

Posted in General Updated on Mar 26 2022.
Written by Akshat Patel

Add replies to annotations and write reviews directly inside a PDF.

Posted in General Updated on Jan 25 2022.
Written by Peter Steinberger

Learn about the PSPDFKit SDK for iOS, Android and the Web.

Posted in General Updated on Feb 5 2021.
Written by Peter Steinberger

If you have issues with a particular file, it helps a lot if you share it with us

Posted in General Updated on Apr 13 2020.
Written by Peter Steinberger

This article explains what files with the icloud file extension are and how they can be resolved to actual files

Posted in General Updated on Feb 17 2020.
Written by Peter Steinberger

What about PDF Viewer on Windows, Web, Linux?

Posted in General Updated on Dec 18 2019.
Written by Peter Steinberger

With the Pro subscription, PDF Viewer gets even better!

Posted in General Updated on Apr 1 2019.
Written by Christoph Mantler

This article describes compatibility with 3rd-Party apps and potential issues when using them.