PaperKnife+ Privacy Policy
Last updated: June 18, 2026PaperKnife+ is built around a simple principle: your files stay on your device, period.
Data Collection
PaperKnife+ does not collect, store, transmit, or share any personal data, usage data, or user information of any kind.
No Internet Access
PaperKnife+ does not declare the INTERNET permission in its Android manifest. The app has no ability to connect to any network or server. Every operation happens entirely on your device.
Local Files Only
All PDF operations — merging, splitting, compressing, encrypting, watermarking, and signing — happen locally on your device using the PDFBox-Android library. The files you process never leave your phone or tablet.
Permissions Used
PaperKnife+ requests only the permissions necessary to read and write PDF files you explicitly select:
- Storage access (scoped): To read PDFs you pick and write processed PDFs to your chosen location.
- No location, camera, microphone, contacts, or background services.
Analytics & Tracking
PaperKnife+ contains no analytics SDKs, no crash reporting services, no advertising networks, and no third-party trackers. There is nothing to opt out of because nothing is collected.
Children's Privacy
PaperKnife+ does not target children and does not knowingly collect any data from users of any age.
Changes to This Policy
If this policy is ever updated, the change will be posted on this page with a revised "Last updated" date.
Contact
For questions about this privacy policy, open an issue on the GitHub repository or contact the developer through the Google Play Store listing.