Signature resize
to 20KB.
Turn a photo or scan of your signature into a JPG under 20 KB with crisp strokes — ready for any application form.
Output: JPG under 20 KB — change it after upload
Drop images here or browse files
Paste Ctrl+V to compress screenshots instantly
Too large for your browser
We can compress it on our server instead. This one file will be uploaded, processed, and immediately discarded — it's never stored.
# File size tools
Compress a signature online without blurry strokes
Most recruitment and government application forms want a scanned signature as a JPG between roughly 10 KB and 20 KB. Signatures are thin dark lines on a light background, and careless compression smears those lines into grey blocks.
This signature compressor downsizes in multiple smooth steps to keep strokes clean, flattens transparent backgrounds to white (JPG can’t store transparency), and picks the best quality that fits under 20 KB.
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Crisp strokes
Multi-step downscaling avoids the jagged, broken lines of one-step resizing.
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White background
Transparent PNG signatures are flattened onto white, never black.
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10 KB or 20 KB
Switch limits instantly for forms with stricter requirements.
How to resize a signature to 20KB
- 1
Sign in black or dark-blue ink on white paper, photograph or scan it, and crop tightly around the signature.
- 2
Drop the image in the box above — it becomes a JPG under 20 KB. Choose 10 KB in “Max size” if your form requires it.
- 3
Download and upload. Check the size and dimensions on the result card.
Typical signature upload requirements
| File format | JPG / JPEG |
|---|---|
| File size (many exam forms) | About 10–20 KB |
| Ink & paper | Black or dark-blue ink on plain white paper |
| Cropping | Tight around the signature, no extra margins |
Limits differ between exams and change between years — always follow the exact size, dimensions and format in your official notification.
# FAQ
Signature Compressor: common questions
How do I resize my signature to 20KB?
Crop your signature photo, drop it here, and it’s automatically converted to a JPG under 20 KB.
How do I compress a signature to 10KB?
After adding the file, change “Max size” to 10 KB. Crop tightly first — less empty paper means sharper strokes at 10 KB.
Why is my signature background black?
That happens when a transparent PNG is saved as JPG by tools that don’t handle transparency. This tool fills transparent areas with white automatically.
Can I compress my photo and signature together?
Yes — but they usually need different limits. Use the passport photo compressor for the photo (20–50 KB) and this page for the signature.