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Photo + signature exactly how the form wants it. No more 'file size invalid'.
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Open exam presets → Resize Image to 20 KB
Signatures, exam photos, form uploads: under 20 KB, verified to the byte.
You'll get:≤ 20 KB
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Compress
Shrink the file, keep the vibe.
Resize in KB
Under 20 KB, 50 KB, 100 KB. Exact.
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HEIC, WebP, PNG ↔ JPG.
Crop
Square, 4:5, 16:9, passport.
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Whole folders. No limits.
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US 2×2, UK, Schengen, India.
Signature resizer
Clean, crop, under the KB limit.
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Open seller presets → What 20 KB is used for
20 KB is one of the most common limits on Indian government, exam and job portals. It’s the usual maximum for signatures (SSC, IBPS, many state boards) and sometimes for photos on older systems. Phone photos are 2–5 MB, more than 100 times too big, which is why forms keep showing “file size exceeds limit”.
Typical 20 KB requirements
| Upload | Typical rule | Notes |
|---|---|---|
| Signature | 10–20 KB, JPG | Black ink on white paper |
| Small photo | 20 KB max | Passport-style face photo |
| Thumb impression | 20–50 KB | Scanned on white |
| Scanned form | Often more than 20 KB | Check the notice |
Always read your own notice: some forms also set a minimum (for example 10 KB) and exact pixels.
How to do it here
- KB size is set to 20. Leave the format on Auto; it picks JPG for the smallest good-looking file.
- Drop your photo or signature scan.
- Hit Repixel it ✨. The badge shows the exact bytes, like 19,840 bytes, max 20,000 (20 KB). Download and upload.
How we hit the limit without ruining the photo
The studio first tries the highest JPG quality at your photo’s current size. If that’s still too big, it lowers quality step by step, and only if quality would get too low does it reduce the pixel size a little, keeping the same shape. It always stops at the best version that fits under 20,000 bytes. If it had to shrink the pixels, a note under the result says so.
Why forms still reject files
- Exact pixels required. Some notices ask for, say, 140 × 60 px for signatures. Use the matching page, like SSC signature resize, which sets both pixels and KB.
- Wrong format. Most portals want JPG/JPEG. Renamed PNG or HEIC files fail.
- Minimum size. “10–20 KB” means a 6 KB file is rejected too.
- Re-compressed by WhatsApp. Sending the file to yourself on WhatsApp as a photo changes it. Send it as a Document, or download it straight to the device you’ll upload from.
Check the file before you submit
After downloading, open the file’s details on your phone or computer (on Windows: right-click → Properties → Details; on Android: the file manager’s info button; on iPhone: the Files app’s info). You should see the same pixel size and a file size matching the badge. Then use the portal’s preview step: if the photo looks stretched or cut off there, go back, adjust the crop box and run again. Keep the downloaded file safe, because many portals ask for the same photo again at later stages, and your admit card will carry it.
📖 Read the guide: SSC Photo Rejected? 5 Reasons and the 30-Second Fix
FAQ fr
Will the file be exactly 20 KB?
It will be as close as possible to 20 KB and never over. We check the final file: 20 KB means 20,000 bytes or less.
Why is 1 KB counted as 1,000 bytes?
It's the stricter rule. A file under 20,000 bytes also passes portals that count 1 KB as 1,024 bytes (20,480 bytes).
My form says 10 to 20 KB. What if the file is too small?
We aim for the highest quality that fits, so the result is usually just under 20 KB. A very simple image might come out smaller; in that case use a bigger pixel size in Pixels mode.
Will my photo still look good?
For signatures and passport-size photos, yes. A full-size phone photo has to be made smaller in pixels to fit in 20 KB; we do that only as much as needed and tell you.
Can I do this on my phone?
Yes. It works in Chrome or Safari on any phone, and nothing is uploaded.