Resize signature to 30 KB online
Compress your scanned signature to under 30 KB for exam and application forms. Upload your signature image — the 30 KB target is pre-set below — then download. Nothing is uploaded to a server. Need to draw a signature instead? Use the draw-signature tool.
Exams that require a 30 KB signature
These exam forms accept a signature up to 30 KB. Open an exam for its photo size and signature dimensions too.
How to compress a signature to 30 KB
Your documents never leave your device
All processing happens inside your browser using the Canvas API — there is no server upload, no cloud storage, and no data retention. We have zero access to your files. Nothing is stored for any duration, because nothing ever travels to our servers in the first place.
No server upload
Files stay in RAM, processed client-side
No account required
No email, no login, no tracking
No watermark
Output is clean — usable directly on exam portal
30 KB signature resize — FAQ
How do I resize a signature to 30 KB?
Scan or photograph your signature on white paper, upload it in the tool above (the 30 KB target is pre-set), and it compresses the image to under 30 KB in your browser. Download it and upload to your form.
How should I scan my signature for an exam form?
Sign on plain white paper with a black or blue pen, then scan it or take a clear photo in good light. Crop tightly around the signature so the background stays white before compressing.
Does this tool upload my signature to a server?
No. The signature is compressed locally in your browser using the Canvas API. Your image never leaves your device.
Why must the signature be under 30 KB?
Exam portals cap the signature upload size so forms stay light and submit quickly. A signature larger than 30 KB is rejected, so it must be compressed before uploading.
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