Open Note Scanner: The Libre Doc Scanner You Have Been Waiting For

Open Note Scanner: The Libre Doc Scanner You Have Been Waiting For
Photo by Arisa Chattasa / Unsplash

Document Scanner app is a commercial paper document scanner app that many had to upgrade from the free version with limited options to the full feature paid one. Yet, many do not have the slightest idea that there is an open source free alternative app that does the same.

Open Note Scanner is a free mobile scanner app for Android devices that enables you to scan documents, paper, cards, handwritten notes, art, or even your shopping receipts. Then do all the heavy lifting for you as automatically adjust the image aspect, contrast and save it in a high quality PDF format.

It also supports the automatic scan of preformatted pages with QR Code and
action indicators. PDF file with the pages are available on the application
website, in the releases section.

The only downside for this app is it needs access to OpenCV manager as it has to be installed, which you can get from

It is also possible to launch the application from any other application that asks for a picture, just make sure that there is no default application associated with this action.

The app does not collect any information about your usage, or share any data with any third-party.

Install and download

You can download the app from Google Play Store or the F-Droid store. You can also choose to install it from source using Android Studio.


Copyright 2016 - Claudemir Todo Bom.

Software licensed under the GPL version 3 available in GPLv3.TXT and online.

Use parts from other developers, sometimes with small changes, references on authorship and specific licenses are on individual source files.


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