Compress image to 20KB
Compress an image to 20KB for strict application forms, exam portals, ID photos, signatures, and lightweight profile uploads.
Use this page when a portal requires an image under 20KB and you need to reduce both file size and, when necessary, image dimensions.
Set 20KB and compress
Upload the file, choose KB, enter 20, then download the result when compression finishes in your browser.
Match the upload wording
20KB, 20 KB, maximum 20KB, and under 20KB usually describe the same upload limit.
Choose the exact number from the form first, then use format or resize controls only when the portal still rejects the file.
Exact pages for each format
Pick the closest tool
Start with the format your upload form asks for. If it accepts several formats, JPG is usually efficient for photos, PNG is useful for screenshots, and PDF is best for documents.
Compress JPG or HEIC to an Exact KB Size
Reduce JPG, JPEG, and iPhone HEIC files to the size you need for forms, portals, and everyday uploads.
Compress PNG to an Exact KB Size
Shrink PNG images to the size you need while keeping screenshots, artwork, and graphics clear.
Compress WebP to an Exact KB Size
Compress WebP images to a specific KB target for lighter pages and cleaner media uploads.
Questions people ask
Can I compress an image to 20KB?
Yes. Upload a JPG, HEIC, PNG, WebP, or GIF image and set the target to 20KB. Because 20KB is a strict limit, large images may also need smaller pixel dimensions.
Which format is best for a 20KB image?
JPG is usually the best starting point for photos. PNG can work better for signatures, line art, and graphics that need sharp edges or transparency.
Why does an image lose detail at 20KB?
A 20KB target leaves very little room for image data. Cropping unused space and reducing width and height can produce a clearer result than lowering quality alone.