THUMB IMPRESSION
Resize thumb impression for exam form upload
Upload a photo of your real inked thumb impression — the tool whitens the paper background, darkens the ink so the ridges are clear, auto-crops, and resizes it to the exact pixel and KB size required by NDA, CRPF, state police, and defence exam forms. Select your exam for auto-preset, or enter custom dimensions.
Which exams require thumb impression upload?
Always verify thumb impression requirements from the official recruitment notification — dimensions and formats change across batches.
How to take a good thumb impression for exam forms
Use a clean ink pad and press your left thumb firmly but evenly on white A4 paper.
Scan the paper using your phone camera — natural daylight, no shadows.
Crop the image close to the ink impression, leaving a small white border.
Upload here and use the tool to resize to the required pixel dimensions and KB limit.
How to resize a thumb impression for an exam form
- Take the thumb impression in blue or black ink on plain white paper and photograph or scan it.
- Upload it here and crop tight to the impression.
- Set the required dimensions and file size, then download.
Where the thumb impression is used
Several recruitment forms have a thumb-impression upload alongside photo and signature, with its own pixel and KB limits. It is checked again on paper at the exam centre.
Getting a clean impression
Use an ink pad or a stamp pad, press once firmly, and let it dry before scanning. A smudged or double impression can be questioned at verification. Left or right thumb — follow the notification.
Crop and resize
Crop out the surrounding paper so the impression fills the frame, then resize to the exact dimensions and KB range your notification lists.
Frequently asked questions
How do I upload a thumb impression to an exam form?
Photograph or scan it on white paper, crop tight, set the required size, and download the image to upload.
Which thumb should I use?
Whichever your notification specifies — often the left thumb for men and the left thumb for women is stated explicitly. Follow the exact instruction.
Is my image uploaded to a server?
No. It is resized in your browser.
What ink colour for the thumb impression?
Blue or black stamp-pad ink on plain white paper unless the notification says otherwise.
Your documents never leave your device
All processing happens inside your browser using the Canvas API. Your files are never uploaded, never stored, and we never see them.
No server upload
Files stay in RAM, processed client-side
No account required
No email, no login, no tracking
No watermark
Output is clean — usable directly on exam portal
ALSO NEEDED FOR EXAM FORMS