Privacy policy

Paperwren collects nothing.

Last updated 27 October 2026

Paperwren is a document viewer with a few PDF tools. This policy is short because Paperwren collects almost nothing, and what it keeps never leaves your device.

What Paperwren collects

Nothing. Paperwren does not collect, transmit, sell or share any personal data. It has no analytics, no advertising, no trackers and no crash reporting. The Android app does not connect to the internet at all; on Windows and macOS the only connection is the update check below, and only if you allow it.

Update checks on Windows and macOS

The first time it runs on a computer, Paperwren asks whether to check for updates. If you agree, each time it starts it downloads a small file listing the latest version from GitHub, where Paperwren is published. If there is a newer version, it asks before downloading and installing it. The request carries nothing about you or your files; like any download, GitHub sees your IP address and may keep standard server logs. You can turn this off, or check by hand, in Settings under Updates. The Android app never checks: it updates through the store or the APK you install.

What stays on your device

Recent files

The names and locations of documents you open, their size and where you stopped reading, so the app can list them and resume. You can turn this off, limit it, or clear it in Settings.

Private copies of files

On Android, when you open a file from the picker or from another app, Paperwren keeps a private copy that only it can read, so the file still opens from your recents after you close the app. Each file is stored once, copies are capped at 250 MB in total (oldest removed first), and you can delete them all in Settings.

Your settings

Choices like your theme and how PDFs open.

PDF passwords

Used in memory to open that file, then forgotten. They are never written anywhere. A password you give a copy with "Add a password" is used to lock that copy and is not kept.

Signatures you keep

When you sign a PDF, you can ask Paperwren to keep your signature or initials for next time. They are stored as pictures in the app's private storage on your device, and you can forget each one when you next sign.

Your notes

Notes you write in Paperwren are stored in the app's private storage on your device. They go nowhere unless you save one as a PDF or back them up, which writes a file where you choose. Removing the app removes them.

Your highlights

Highlights, notes and drawings you make on a PDF are stored in the app's private storage on your device, and the PDF itself is not changed. They go with your notes backup, and you can delete them in Settings. Text read from a scan is kept beside them, so a page is only read once, and is deleted with them. Nothing is kept for a PDF opened with a password.

Copies you save

Files the tools make (a signed form, merged pages) are saved only where you choose in your system's save screen.

Permissions

The Android app requests no permissions at all, including internet access. It only sees the files you open with it or share to it. Android's cloud backup is turned off for Paperwren, so its data does not travel with your backups either.

Files you open

Documents are read and displayed on your device only. Paperwren never uploads them or sends anything about them anywhere.

Deleting your data

Clear recents and private copies in Settings, or uninstall the app, which removes everything it stored. There is no account, so there is nothing to delete anywhere else.

Children

Paperwren collects no data from anyone, including children.

This website

This site sets no cookies, runs no analytics and serves its own fonts and scripts. Your browser talks only to the host serving these pages, which may keep standard server logs.

Changes

If a future version ever changes any of this, this page will be updated and the app will tell you before the change takes effect.

Contact

Questions about this policy or the app: emailsaqlainrazee@gmail.com, or open an issue on the project's issue tracker.