# Image brightness and contrast

Canonical page: https://beta.convertexpress.com/image-brightness-contrast

Adjust brightness and contrast from -100 to 100, then download a PNG with the original dimensions.

## Use case

Make a readable copy of a dark image.

## Steps

1. Choose the supported image or images.
2. Review the image brightness and contrast options shown above.
3. Run the tool, download the new copy, and inspect the result.

## Limitations

Strong adjustments can clip bright or dark areas. Compare the result with the original before replacing any working copy.

Processing happens in the browser. No file upload is required for this local tool. The web interface and libraries are downloaded from the site. Device/browser limits apply.