How do I compress a signature to exactly 20 KB?

Upload the signature above, leave the target at 20 KB, and click Compress. The tool adjusts quality and, if needed, resolution until the file is just under 20 KB, then lets you download it — nothing is uploaded to a server.

Is this tool free and safe to use?

Yes. It's free, requires no account, and runs entirely in your browser using your device's own processing — your image is never sent anywhere.

Which exams use a 20 KB signature limit?

SSC, IBPS, SBI, RRB, OPSC commonly use this limit, though you should always confirm the exact figure in your own notification since it can change between cycles.

FormFitExact-KB image tool

Runs in your browser — nothing is uploaded

Compress Signature to Exactly 20 KB

Upload your signature, and this tool will get it just under 20 KB — fit for upload, free, and without sending your file anywhere.

Drop a photo or signature here, or choose a file

Image type

Your exam or form

Custom target: 20 KB

Output settings

Target size

Format

How exact-KB compression works

This adjusts JPG/WEBP quality and, if needed, slightly reduces pixel dimensions until the file lands just under your target — typically with a small safety margin so a strict portal doesn't reject it for being a byte over. The compression runs on a background thread when your browser supports it, so the page stays responsive even on a large photo. Your file is never sent to a server — everything happens on your device.

When you need a 20 KB signature

The most common signature ceiling — SSC, IBPS, SBI, and RRB all typically use this limit alongside a 50 KB photo limit.

A scanned signature usually compresses better than a phone photo of one, because scans have flatter, more uniform backgrounds.

SSC size requirements →IBPS size requirements →SBI size requirements →RRB size requirements →OPSC size requirements →

Frequently asked

How do I compress a signature to exactly 20 KB?: Upload the signature above, leave the target at 20 KB, and click Compress. The tool adjusts quality and, if needed, resolution until the file is just under 20 KB, then lets you download it — nothing is uploaded to a server.
Is this tool free and safe to use?: Yes. It's free, requires no account, and runs entirely in your browser using your device's own processing — your image is never sent anywhere.
Which exams use a 20 KB signature limit?: SSC, IBPS, SBI, RRB, OPSC commonly use this limit, though you should always confirm the exact figure in your own notification since it can change between cycles.