Verified feature
Compress, resize, and convert
Configure file size, dimensions, aspect ratios, and JPG, PNG, or WebP output.
The problem it solves: Large or inconsistently sized images are harder to share, upload, print, and store.
What you can do
- Compress multiple images with use-case presets or a target file size.
- Resize by percentage, exact width and height, or long edge.
- Convert selected images to JPG, PNG, or WebP.
- Choose whether compatible conversions retain EXIF data or remove location information.
Available options
- Compression presets for messaging, social sharing, email, or high quality
- Target size from 100 KB to 2 MB in the current compression interface
- Resize values from 1 to 16384 pixels
- Keep original dimensions and choose image quality
- Keep color profile where supported
Supported inputs
- Images readable by the Android image workflow
- HEIC input when supported by the device decoder
Outputs
- JPG
- PNG
- WebP
Workflow
- Select one or more source images.
- Choose compression, resize, or format conversion.
- Configure size, dimensions, output format, quality, and metadata settings.
- Run processing and review the output.
- Save the verified result.
Limitations
- JPG does not preserve transparent pixels; transparent input is flattened during JPG conversion.
- Available decoding support can vary by Android device and source format.
Common questions
Which output formats are available?
The verified conversion workflow exports JPG, PNG, and WebP.
Can resizing use exact pixel dimensions?
Yes. Batch resize supports exact width and height, percentage scaling, and a long-edge value.
Project evidence
feature/feature_app/src/main/java/com/wkq/photo/feature/app/compression/CompressionFragment.ktfeature/feature_app/src/main/java/com/wkq/photo/feature/app/formatconvert/FormatConvertFragment.ktfeature/feature_app/src/main/res/values/batch_resize_strings.xml