No. 09 — Reduce file size
Compress an image to 20 KB
Many exam and application forms want your photo or scanned signature in a file of 20 KB or less. It’s a tiny limit, but you can hit it here in seconds.
How to use it
- Choose the photo or the image of your signature.
- Leave 20 in “Max file size (KB)”.
- Download the file and upload it to the form.
What to expect at 20 KB
A full phone photo can’t fit in 20 KB without shrinking, so we reduce its dimensions until it reaches that size while staying sharp. For an ID photo or a signature that’s plenty. If the form also requires exact pixel dimensions, set them first with resize image.
Questions and answers
How do I prepare my signature?
Sign with dark ink on white paper, take a photo in good light and trim it with crop image before reducing it here.
What if I need 10 to 20 KB?
Leave 20 as the maximum: we look for the best quality under 20 KB, so the file will end up close to that limit.
Are my photos uploaded to a server?
No. Everything is processed inside your browser, on your own phone or computer. Your photos never leave your device and nobody else can see them.