Compress an image to 20 KB
This is the image compressor with a 20 KB budget already set. Add an image and Docstools searches for the best-looking version that fits, then reports the size it actually produced.
Add at least one image to continue.
How to use compress image to 20 kb
- Add the image you need to shrink.
- The target is already set to 20 KB. Change it if your form asks for something different.
- Leave "shrink the image if needed" ticked — 20 KB is rarely reachable at full dimensions.
- Select Compress images, check the reported size, then download.
Supported files and limits
- Formats
- JPG, JPEG, PNG, WebP
- File size
- 25 MB per image
- Batch
- Up to 30 images
What happens to your files
This tool runs inside your browser tab. Your files are read by the page, processed on your own device, and never sent to Docstools. Closing or reloading the page clears them from memory. Read the full privacy policy.
Frequently asked questions
Can any image really be made 20 KB?
Not always at its original dimensions. 20 KB is a very small budget, so Docstools reduces quality first and then, if you allow it, the dimensions. A phone photo typically has to come down to a few hundred pixels across. If even that is not enough, the result says the target was not reached rather than quietly missing it.
Why does the result say a size slightly under 20 KB rather than exactly 20 KB?
Because forms check for "at most", not "exactly". Docstools looks for the highest quality whose output still fits inside the budget, so you get the best-looking image that passes rather than one padded to hit a number.
Is 20 KB the right size for my form?
Only the organisation running the form can tell you that. Docstools has no way to verify any portal’s current requirements, so it does not guess. Check the official instructions for the form you are filling in, then set that number here.
Will my signature still be readable?
Usually, because a signature is mostly flat white with thin dark strokes, which compresses well. Look at the preview before you submit. If it has gone blotchy, try WebP, which holds detail better than JPG at very low sizes, if the form accepts it.