How to Make a 20KB Photo for Exam Forms
Need a 20 KB photo for exam form? Many government and entrance exam portals like SSC, RRB, Railway, Bank, UPSC and State PSC ask candidates to upload their photograph in JPG format under 20KB. If your photo is larger than 20KB, the exam form simply shows an error and refuses to upload it. This step-by-step guide will show you how to resize and compress your photo to 20KB online for free without losing clarity.
| Item | Common requirement |
|---|---|
| Photograph file size | 20KB – 50KB |
| Signature file size | 10KB – 20KB |
| File format | JPG / JPEG |
| Photo dimensions | Often around 200 × 230 px |
| Background | Plain white or light plain colour |
Exam-wise Photo and Signature Size (Common Examples)
Different Indian government exams ask for different photo and signature file sizes. Here is a quick reference table to help you know the exact requirement for your exam.
| Exam | Photo Size | Dimensions | Signature Size |
|---|---|---|---|
| SSC CGL / CHSL / MTS | 20KB – 50KB | 200 × 230 px (approx.) | 10KB – 20KB |
| RRB NTPC / Group D | 20KB – 50KB | 200 × 230 px (approx.) | 10KB – 20KB |
| IBPS PO / Clerk | 20KB – 50KB | 200 × 230 px (approx.) | 10KB – 20KB |
| SBI PO / Clerk | 20KB – 50KB | 200 × 230 px (approx.) | 10KB – 20KB |
| CUET UG | 10KB – 50KB | Check notification | 4KB – 30KB |
| UPSC / NDA / CDS | Varies | Check official notice | Varies |
| NEET / JEE (NTA) | Varies | Check official notice | Varies |
Step by Step: Compress a Photo to 20KB
- Open the SmartWish Image Resizer.
- Upload your photo by dragging it in or clicking the upload area.
- Click the Exam 200×230 preset, or enter the dimensions your form asks for.
- Set the output format to JPG, which produces the smallest file.
- Type 20 in the Target size in KB field, or click the 20 KB preset.
- Leave Auto-resize to protect quality switched on.
- Click Resize Now, check the preview and the reported file size, then click Download Image.
How to Keep the Photo Sharp at 20KB
A JPG file needs a certain amount of data for every pixel it stores. If you ask for 20KB while the image is still 1920 × 1080 pixels, the compressor has to throw away so much information that the result looks blocky. The fix is simple: reduce the dimensions first, then apply the file size limit.
| Target file size | Dimensions that still look sharp |
|---|---|
| 20 KB | Up to about 640 × 360 px |
| 50 KB | Up to about 1000 × 560 px |
| 100 KB | Up to about 1400 × 790 px |
A standard 200 × 230 pixel exam photo is far below these limits, so 20KB gives it plenty of room and the result stays clear.
Additional tips
- Set the correct dimensions before applying the KB target, not after.
- Use JPG rather than PNG. PNG is lossless and cannot reliably hit a 20KB target.
- A plain, evenly lit background compresses far better than a busy one.
- Avoid resizing an already compressed photo again and again, as quality loss adds up.
Resizing Your Signature
The same tool handles signatures. Scan or photograph your signature on plain white paper, upload it, set the dimensions from your form, then enter 10 or 20 in the target size in KB field. Photograph and signature must be uploaded as separate files, each within its own limit.
Is My Photo Safe?
Yes. The resizer never uploads your file. All resizing and compression runs inside your own browser using the Canvas API, and the finished image is saved straight to your device. You can read the details in our Privacy Policy. •
Frequently Asked Questions
Why do exam forms have a 20KB photo size limit?
Government portals handle millions of applications, so they limit file sizes to save server storage and keep uploads fast on slow connections.
Why does my photo look blurry at 20KB?
A 20KB JPG can only hold a limited amount of data. If the image is still very large, for example 1920 × 1080 pixels, quality drops sharply. Reduce the dimensions to around 200 × 230 pixels first and the same 20KB file will look clear.
Should I use JPG or PNG for exam form photos?
Use JPG. PNG is lossless and produces much larger files, so reaching a 20KB target reliably is not possible with PNG.
Can I resize my signature to 10KB as well?
Yes. Upload the scanned signature, set the dimensions requested by the form, enter 10 in the target size in KB field and download the result.
Is my photo uploaded to a server?
No. All resizing and compression happens inside your browser using the Canvas API, so the file never leaves your device.