Apps I've made.

All small. All open source. All respect your privacy.

PDF utility for Android. 24 tools — merge, split, compress, rotate, protect, sign, watermark. 100% offline, no internet permission, all on-device.

The original PDF utility I made. Same idea, different tech. Open source on GitHub.

Strips EXIF and other metadata from photos before you share them. Because your photos shouldn't leak where they were taken.