WaterMarkKit

WaterMarkKit is a private watermark studio for Android.

Choose an image with the system Photo Picker or Storage Access Framework, add a custom text watermark, tune the color, opacity, size, and position, then preview the result before exporting or sharing.

Key features:
- Select images with Android system pickers
- Add custom text watermarks
- Adjust color, opacity, size, and placement
- Preview before export
- Export through the Storage Access Framework
- Share a generated watermarked image
- Local recent export history
- Built-in privacy policy

WaterMarkKit does not require an account, does not use a backend service, and avoids broad storage permissions such as MANAGE_EXTERNAL_STORAGE. Your images stay on your device unless you choose to share them.