It's now available in drive mobile app https://proton.me/blog/drive-2026-q1-recap

Currently, Proton Drive's document scanner on Android is implemented using Google Play Services' document scanner API. This creates several privacy and usability issues:

Privacy concern: Even though the scan is processed locally and encrypted before upload, you must grant camera access to Google Play Services—one of the most pervasive data collection systems on Android.

Compatibility issue: The scanner does not work on de-googled devices (GrapheneOS, /e/OS, LineageOS without GApps) because it requires Google Play Services.

No user agency: There is no option to select an alternative camera app for scanning. Users cannot choose apps like OpenScan, OpenCamera, or other privacy-focused alternatives that don't depend on GMS.

Maybe a native implementation is asking for too much, but simply allowing camera selection for scanning would be great.

A built-in document scanner would be a great addition to Proton Drive. It would let users scan and store important documents in one place without relying on third-party apps that may have broader permissions or different privacy practices. For anyone who regularly manages official documents or accesses digital service portals, keeping everything private and organized is a real advantage.

I recently came across https://massarservicema.net/, which explains Morocco's Massar Service portal, having secure document scanning within Proton Drive would make it even easier to manage documents used for services like these.

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I still do not see this option in the mobile app

It looks like they now have an option for this in the mobile apps, though I have not tested it yet.

It would be great if the document scanning feature added to the Android app were also compatible with degoogled phones without GMS.

New feature reference: https://protonmail.uservoice.com/forums/932839-proton-drive/suggestions/47421149-a-document-scanner-for-mobile-apps

This function now exists in the Proton Drive app.

The function exists now. I don't know since when exactly, but on IOS you can scan with Drive.

Most phones have this built-in. Why would you want them to bloat the app with existing feature?
Every iPhone can "scan" documents from the "Files" app or the "Notes" for years and can store them anywhere.
My old Samsung also had such ability.

I think this is created and done?! I've used this service several times and love it!

Yes!!! Asap please on Android!

It is already implemented on iOS.
Open Proton drive, go to the folder where you want your scan to be saved and press the "+" in the upper right corner. The last option in the list is: "Scan document". Voila!
No OCR though...

It just landed (iOS app at least). Not really used it due to lack of sync with macOS client.

Black-and-white feature like Google Drive or BlackBerry's built-in document scanner would be nice. Taking a picture isn't sufficient especially when color contrast is not high enough.

Asap, please.

Yes, this! I would absolutely ditch my scanner app in a heartbeat. I scan all my mail and upload to Dropbox, but would much prefer a secure and private option.

I am planning on replacing both Dropbox and Evernote with Proton drive. It would be great to drop GeniusScan as well. However, I would need to be able to forward those documents through other apps, since my Outlook account is the only way secure enough for my companies security standards.

I'm just using genius scan for now, but I would love this. Google drive has this feature

This is a great idea and very much in line with Proton’s mission. A built-in scanner in Proton Drive would let users capture and encrypt documents directly, avoiding third-party apps that demand excessive permissions. It could include OCR for searchable text, encrypted annotations, and the ability to scan directly into specific Drive folders. On the security side, end-to-end encryption from the moment of capture, metadata stripping, and secure sharing with time limits would make it stand out. This would close a real privacy gap and provide a seamless, Proton-native experience.