Compress Your Photo to an Exact Size — 50KB, 20KB, 100KB or Custom
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🔒 Your photo never leaves your device — everything happens in your browser.
How to compress your photo to an exact size
- Choose your photo — tap the box above and pick the JPG, PNG or WebP image the form rejected.
- Pick the size limit — choose the max KB your form asks for (50KB is the most common). If it asks for a different size, choose “Custom max size” and type it in.
- Download and upload — check the result size, download the new JPG, and upload that file to your form.
Forms all ask for different sizes — 20KB, 30KB, 50KB, 100KB, 200KB and more. If your form’s limit is not in the list, use Custom and the tool will aim just under that exact number.
Online forms are strict. Upload a photo that is even slightly too big and the whole application bounces back with a red error message — sometimes after you have already filled in ten pages of details. Exam boards, government job portals, university admissions and visa forms all do this, and each one asks for a different size: 20KB here, 50KB there, 200KB somewhere else.
Most image compressors make you guess. They give you a quality slider and wish you luck: drag, check the size, drag again, check again. This tool works the other way round. You tell it the exact maximum size your form allows, and it adjusts the photo for you — trying different quality levels automatically until the file lands just under your limit. If quality alone is not enough, it carefully reduces the dimensions too, so the result still looks like your photo, just in a smaller file.
It also handles the two special cases that trip people up most. Passport mode produces a photo at exactly 413 × 531 pixels — the standard 35×45mm size at 300 DPI that most ID and passport forms expect. Signature mode shrinks a scanned or photographed signature to under 20KB, the limit most application forms set.
Your photo is never uploaded anywhere. The compression happens entirely inside your browser, on your own device — the file never travels to a server, and nothing is stored. That matters, because these are personal documents: ID photos and signatures are not things you should hand to a random website.
A few honest notes. The output is always a JPG, because that is what almost every form accepts, and transparent areas of PNG images are placed on a white background. Making a file smaller always trades away a little detail; the tool keeps as much quality as your size limit allows, but a 20KB photo will never look as sharp as a 2MB one. And if your form also specifies exact pixel dimensions or a different file type, check its instructions first — this tool covers the size limit, which is the rule that rejects most people.
Frequently asked questions
Why did the form reject my photo?
Almost always because the file was larger than the form's maximum size, even if the photo itself looked fine. Forms check the file size in KB, not how the picture looks. Compress it to just under the stated limit and it should be accepted.
Will compressing my photo make it blurry?
A smaller file always keeps a little less detail, but this tool uses the highest quality that still fits under your limit, so for normal ID and application photos the difference is hard to see. If the result looks too soft, check whether your form allows a larger size and use that limit instead.
Is my photo uploaded to a server?
No. Everything runs in your browser on your own device. Your photo never leaves your phone or computer, and nothing is saved or stored anywhere.
My form asks for a different size, like 30KB or 150KB. What do I do?
Choose “Custom max size” in the tool and type in the exact KB number your form asks for. The tool will aim just under that limit, whatever it is.
More free tools: Fake Giveaway Checker · The Honest Sweepstakes Checklist (free)
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