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How to Resize Image in KB or MB

Set image width, height or target file size in KB or MB for forms, uploads and sharing.

What does the Image Resize tool do?

The Docsmania Image Resize tool lets you change image width, height and target file size. You can set targets such as 100KB, 200KB or 1MB.

Step-by-Step Guide

  1. Open the Image Resize tool.
  2. Upload a JPG, PNG or WebP image with the Select Image button.
  3. Enter the output name.
  4. Choose the output format: JPG, WebP or PNG.
  5. Enter Width or Height. If one field is blank, the aspect ratio is preserved automatically.
  6. Enter a Target Size such as 100 and choose KB as the unit.
  7. Press Resize / Reduce & Download.
Open Image Resize Tool

Best Settings

FAQ

Will the tool create an exact 100KB image?

The tool tries to keep the file under the target size. Exact KB output is not always possible for every image, but the result is usually close.

Which is usually smaller: JPG or WebP?

WebP usually creates smaller files, while JPG remains widely supported for forms and normal sharing.