PDF Viewer offers a Pro subscription to unlock additional capabilities. This will both help us to keep working on this app and will unlock even more great features for you, such as:
Presenter Mode (iOS)
Copy and Paste Pages (iOS)
Create and Edit Link Annotations (iOS)
And so much more!
Why are we offering a subscription?
We released PDF Viewer for free in 2016, and have since shipped very many application updates. We will keep updating PDF Viewer regularly, both the free as well as the Pro version, with new features and improvements.
Some of the features, however, take a lot of time and effort to implement. There are multiple developers working on PDF Viewer, and the development work does come at a cost significantly higher than server or backend upkeep would be.
Our goal has always been to provide a great experience for all users of PDF Viewer, and our hope is that the Pro package will enable us to invest additional time and improve the PDF Viewer experience even more.