Compress signature to
20KB online.
Reduce a scanned signature to around 20KB for PPSC, FPSC, NTS, university, and job application forms.
Kodotools Team · Last updated: June 2026 · Files stay on your device
Drop your signature here
or click to browse · select multiple
0 signatures ready
Total: —
Target size
About this tool
Use this 20KB compressor when a portal asks for a very small scanned signature file. For best results, resize the signature first, keep the background white, and choose JPG output.
Who needs this tool?
- PPSC, FPSC, NTS, and job applicants
- Students submitting admission or exam forms
- Anyone reducing a scanned signature for strict portals
Need the signature pixels first? Open the signature tool hub, use resize signature for PPSC or resize signature for FPSC, then come back and compress to 20KB. For the full photo workflow, open PPSC photo and signature tools or FPSC photo and signature tools.
Signature compression requirements
Most portals care about both dimensions and file size. Resize the signature first, then compress to 20KB if needed.
| Requirement | Recommended setting |
|---|---|
| Target size | 20KB or lower when the portal rejects larger files |
| Recommended pixels | 300x80 px for many job/exam forms, then compress |
| Format | JPG / JPEG is usually accepted and compresses best |
| Background | White or transparent-looking white scan area |
| Privacy | Browser-only processing; your signature stays on your device |
What makes us different
Built for real people,
not techies.
100% private. Always.
Your signature files never touch a server. Every byte of work happens right inside your browser tab — no uploads, no accounts, no tracking pixels.
Instant compression
Most signatures compress in under a second. No queues, no uploads waiting.
iPhone HEIC ready
Drop phone scans directly. HEIC files are converted to JPEG before compression.
Exact size control
Hits your target within 2% — every time.
Bulk upload
Drop multiple signature files at once. Compress all in seconds.
Forever
No watermarks, no signups, no limits.
How it works
Three steps. Under 10 seconds.
Drop your signature
Drag & drop or click. Pick one or many. JPG, PNG, WebP, HEIC — all welcome.
Pick 20KB target
Choose a preset (20KB → 1MB) or type any custom KB value to match your form.
Download
Hit Compress and grab your perfectly-sized signatures. Done.
FAQ
Signature questions
How do I compress a signature to 20KB?
Upload the scanned signature, keep the 20KB preset selected, click Compress all, and download the result.
Should I resize before compressing?
Yes. If the portal requires exact pixels, resize the signature first, then compress it to 20KB.
Do you upload my signature?
No. The signature is processed locally in your browser.
Which format is best?
JPG is usually best for strict 20KB signature uploads because it compresses more easily than PNG.
Guides
Real use-cases, step by step
Practical walk-throughs for the most common forms with strict size limits.