UnderPic helps you make photos fit file-size limits quickly and privately.

How to Use UnderPic

1. Tap Select Photo.
2. Crop the part of the photo you need.
3. Choose a target file size.
4. Tap Compress.
5. Save the finished photo or share it.

Target Sizes

UnderPic includes common target sizes:

• 100 KB
• 500 KB
• 1 MB
• 2 MB
• 5 MB

You can also enter a custom file-size limit.

The target must be smaller than the original photo.

Cropping

UnderPic supports:

• Free
• Original
• 1:1
• 4:3
• 3:2
• 16:9

Pinch to zoom the photo and drag to reposition it.

In Free mode, drag the crop-frame corners to adjust the crop area.

Saving Photos

Tap Save Photo after compression.

UnderPic requests permission to add the processed photo to your Photo Library only when you choose to save it.

If access is disabled, you can change Photos access for UnderPic in iPhone Settings.

Sharing Photos

Tap Share to use the standard iOS share sheet.

Shared JPEG files use the filename:

UnderPic.jpg

Privacy

Photos are processed locally on your iPhone.

UnderPic does not upload your photos to a server and does not use advertising, analytics, or tracking SDKs.

See the UnderPic Privacy Policy for more information.

Requirements

• iPhone
• iOS 17 or later
• Portrait orientation

Contact

For questions, bug reports, or support:
app-support@vm.psykoro.com