Thumb impression
resize, free
Resize your left thumb impression to the exact pixels and KB an exam form needs — 240×240 px, 10–50 KB — right in your browser. No signup, no watermark, nothing uploaded.
Kodotools Team · Last updated: September 2026 · Files stay on your device
About this tool
A free thumb resizer for exam forms — resize your left thumb impression online: upload a photo of your thumb impression, pick your exam, and the tool crops it to a square, resizes it to 240×240 px, and compresses it to the KB limit — keeping the ridges sharp. Everything runs in your browser.
Who needs this?
- Bank & exam applicants (IBPS PO/Clerk, SBI, RRB, SSC) who must upload a left thumb impression
- NEET candidates uploading a thumb impression at an exact size
- Anyone whose form rejects a thumb impression for being too large or the wrong pixels
Drop your thumb impression here
or click to browse · JPG, PNG, or WebP
Original —
Resized —
Pick your exam to load its size, or enter it by hand below.
✓ Compressed to the target KB while keeping the ridges as sharp as possible. Small size is required by the form — that's expected.
Thumb impression requirements (government forms)
These are the common values used across Indian recruitment forms. Always confirm the exact numbers in your official notice.
How to resize a thumb impression online
Three steps. No app needed.
Upload the photo
Photograph or scan your left thumb impression on plain white paper, then drop the image in.
Pick your exam
Choose IBPS, SBI, NEET, or a custom size. It fits the print into a 240×240 square and sets the KB target.
Download JPEG
See the before/after and KB saved, then download a form-ready JPEG.
Thumb impression size for each exam
Most exams use a square 240×240 px thumb impression between 10 and 50 KB. Here are the common ones — load them with the preset above, and always confirm your official notice.
IBPS thumb impression size (PO, Clerk, RRB)
The thumb impression size for IBPS is a left thumb impression around 240×240 px and 20–50 KB in JPEG. Whether you need the thumb impression for IBPS PO, the left thumb impression for IBPS Clerk, or the IBPS PO left thumb impression specifically, load the IBPS preset and the tool resizes and compresses it to fit — the same "ibps thumb impression resize online" many candidates search for.
SBI clerk thumb impression size
SBI PO and Clerk use the same 240×240 px, 20–50 KB thumb impression. Keep the ink dark and the paper white so the ridges stay clear after the file is compressed.
| Exam | Thumb impression | File size |
|---|---|---|
| IBPS (PO / Clerk / RRB) | 240 × 240 px, JPEG | 20–50 KB |
| SBI (PO / Clerk) | 240 × 240 px, JPEG | 20–50 KB |
| SSC | 240 × 240 px, JPEG | 20–50 KB |
| RRB (NTPC / Group D) | 240 × 240 px, JPEG | 20–50 KB |
| NEET | 240 × 240 px, JPEG | 10–50 KB |
Sizes are typical values and change between cycles — your official notice is the final word.
Tips for a clear left thumb impression
- Use a blue or black stamp pad on plain white paper — dark ink on white keeps the ridges sharp after the file is compressed.
- Press once, evenly. Roll the thumb lightly so the whole print shows without smudging or double impressions.
- Photograph it in good light, straight on, then crop close to the print before uploading — a tight, high-contrast source resizes far better.
- Turn on "Sharpen ridges" if the print looks faint — it converts to clean black-and-white so it stays legible at 240×240.
- Use the left thumb unless your form says otherwise — most bank and exam forms specifically ask for the left thumb impression.
Why forms ask for a thumb impression
Exam boards pair your photo and signature with a thumb impression so your identity can be verified at the exam centre — the thumb print on your admit card and answer sheet has to match the one you uploaded. That's why the size and clarity are strict: the ridges must stay readable after the portal compresses the file. Resizing it to the exact pixels and KB, without sending your print to a server, gets you a form-ready upload while keeping it private.
FAQ
Common questions
How do I resize a thumb impression online?
Upload a photo of your thumb impression above, pick your exam (or a custom size), and the tool resizes it to 240×240 px and compresses it to the KB limit. Then download the JPEG — free, and nothing is uploaded.
What is the IBPS thumb impression size?
For IBPS (PO, Clerk, RRB) the left thumb impression is usually 240×240 px and 20–50 KB in JPEG. Pick the IBPS preset and it loads those values — but always confirm your official notice.
Does the thumb impression lose quality when resized?
The file gets smaller because the form requires a small size (10–50 KB) — that's expected, not a fault. The tool keeps quality as high as the KB limit allows and uses high-quality scaling, and the "Sharpen ridges" option keeps the print legible.
Is my thumb impression uploaded to a server?
No. Your image never leaves your device — the resizing and compression happen locally in your browser, so your print stays private.
Which thumb should I use — left or right?
Most bank and exam forms (IBPS, SBI) ask for the left thumb impression. Use the left thumb unless your official notice says otherwise.
What is the NEET thumb impression size?
NEET typically wants a left thumb impression around 240×240 px and 10–50 KB. Choose the NEET preset to load those values, then download the JPEG.
My thumb impression is over 50 KB — how do I reduce it?
Set the Target KB to your limit (say 45) and the tool compresses the print to sit just under it while keeping quality as high as possible. That's the whole point of the resizer.
Does it work on a phone?
Yes. Photograph the thumb impression with your phone and resize it right there in the mobile browser before uploading the form.
What format does the exam form need?
Almost all exam portals want JPG/JPEG for the thumb impression, so the tool always saves a JPEG at your chosen size and KB.
Can I resize my photo and signature too?
Yes — the same form usually needs all three. Use the photo & signature merger for the photo and signature, and the signature resizer on its own.
Ready to resize your thumb impression?
Upload it, pick your exam, and download a form-ready JPEG in seconds.
Resize thumb impression →