Numo PDF privacy policy
Last updated: 14 November 2026
Numo PDF is a free PDF reader and PDF toolkit for Android, developed and published by Novixway LLC ("Novixway", "we", "us"). This policy explains what Numo PDF does with information on your phone.
The short version: Numo PDF has no accounts, no ads, no analytics and no crash reporting. Your documents are opened, edited and saved on your phone. Numo PDF does not send your documents, or anything else, to Novixway or to anyone else. A file only leaves your phone when you choose to share or save it somewhere yourself.
How Numo PDF reaches your files
Numo PDF does not ask for permission to read your storage. You pick files with the Android system file picker (the Storage Access Framework), or you open a PDF or share images into the app from another app. Numo PDF can then read only the files you picked. When you save a result, you choose where it goes with the same system picker.
Data kept on your phone
| Data | Why | Leaves the phone? |
|---|---|---|
| Recently opened files: file name, a link to the file from the system picker, page count, the page you were on, starred status and when you opened it | to show your recent files and reopen a PDF at the page where you stopped | No |
| Signatures you draw (saved as images) | to reuse a signature without drawing it again | No |
| The name you type for name stamps | to fill it in next time you sign | No |
| Reader preferences, such as night mode | to keep the reader the way you set it | No |
| Documents you scan | saved in the app's private storage so you can open, edit and share them | No |
| Temporary working files | created while merging, splitting, compressing and so on, then replaced or cleared | No |
| Passwords you type to protect or unlock a PDF | used only for that one operation (AES-256 encryption or decryption) | No, and never saved |
All of this is stored in Numo PDF's private app storage, which other apps cannot read. Your original files are never uploaded or copied anywhere else. You can remove a file from the recent list or delete a saved signature in the app at any time. Uninstalling Numo PDF, or clearing its storage in Android Settings, deletes all of it.
Android backup. If you have turned on Android backup for your device, Android may include Numo PDF's settings, recent files list and saved signatures in your device backup, which Google stores in your Google account under your backup settings. Scanned documents are excluded from backups. Novixway has no access to your backups. You can turn backup off in Android Settings.
Document scanner (Google Play services)
The document scanner uses the ML Kit Document Scanner, a component provided by Google through Google Play services. When you tap Scan, Google's scanner screen opens, uses the camera, finds the page edges and returns a PDF to Numo PDF. The scanning runs on your device. Numo PDF does not request camera permission itself, and the scanned images are not sent to Novixway.
Google Play services and ML Kit may download updates to the scanner and may send Google limited technical information, such as device model, Android version, app package name, performance metrics and error codes, to keep the feature working and improve it. This is handled by Google under the Google Privacy Policy and the ML Kit terms. Novixway does not receive this information.
Network
Numo PDF itself does not go online to work with your documents. Every tool (reading, merging, splitting, organizing pages, compressing, images to PDF, signing, protecting and unlocking) runs on your phone. The only network activity related to Numo PDF is the Google Play services activity for the scanner described above, and the normal app installs and updates handled by Google Play.
Sharing
Numo PDF never shares your data. When you tap Share, Android shows its share sheet and the file goes only to the app or person you choose. What that app does with the file is governed by its own policy.
What we do not do
- No account or sign in.
- No ads and no advertising ID.
- No analytics, tracking or crash reporting SDKs, and no Firebase.
- No sale or transfer of your information to anyone.
Children
Numo PDF is a general purpose productivity app and is not directed at children under 13.
Changes
If this policy changes, the new version will be posted at this address with a new "Last updated" date. Material changes will also be noted in the app's release notes.
Contact
Novixway LLC is responsible for Numo PDF and for this policy. Questions or requests: email contact@novixway.com.