RBI photo and signature resizer
Make your photograph, signature, left thumb impression, handwritten declaration fit the RBI Grade B and RBI Assistant form rules. Pick an image, adjust the crop, and download a file that's already within the limits.
🔒 Runs in your browser. Your photos are never uploaded.
There is also a live photo. RBI also takes your photo live with your webcam or phone camera inside the form, and it should match the photo you upload. Sit facing a window or lamp against a plain wall, with no cap, mask or spectacles.
RBI upload requirements
| Document | File size | Dimensions | Format | Other rules |
|---|---|---|---|---|
| Photograph | 20 to 50 KB | 200 × 230 px (3.5 × 4.5 cm) | JPG | Background: light Pixel size is preferred Recent colour photo, scanned at 200 DPI or more No cap or goggles |
| Live photograph | Captured live in the form | – | – | Taken by webcam or through a QR code on your phone |
| Signature | 10 to 20 KB | 140 × 60 px | JPG | Background: white paper Pixel size is preferred Black ink pen Capital letters are not accepted |
| Left thumb impression | 20 to 50 KB | 240 × 240 px (3 × 3 cm) | JPG | Background: white paper Pixel size from the Assistant notice; preferred, not fixed Black or blue ink, not smudged |
| Handwritten declaration | 50 to 100 KB | 800 × 400 px (10 × 5 cm) | JPG | Background: white paper Pixel size from the Assistant notice; preferred, not fixed Black ink, your own handwriting, in English Not in capital letters; copy the wording exactly |
Based on the official RBI notice for the 2026 cycle (source). Last checked 17 Oct 2026. Checked against the official RBI Assistant notice (applications from February 2026, archived copy) and the Grade B 2026 notice. File sizes are the same for both. All pixel sizes are marked "preferred". The Grade B notice lists only 140 × 60 px for the signature, thumb and declaration together, while the Assistant notice gives 240 × 240 px for the thumb and 800 × 400 px for the declaration, which is what this tool makes. Rules can change between cycles, so match these against the notification for your exam before you submit.
How to resize for RBI
- Take a clear, recent photo against a plain light background. A phone camera in daylight is fine.
- Sign on plain white paper with the pen colour your notification asks for (usually black). Photograph it from directly above in good light.
- Choose each image above. Drag and zoom so it fills the frame.
- Check the size shown under the preview, then tap Download JPG and upload that file on the RBI portal.
Questions people ask
What photo size does RBI accept?
20 to 50 KB, 200 × 230 px (3.5 × 4.5 cm), as a JPG, based on the 2026 notification.
What signature size does RBI accept?
10 to 20 KB, 140 × 60 px. Sign on plain white paper in the ink colour the notification asks for (usually black), then photograph or scan it.
Why was my upload rejected even though the size was right?
Portals also check things a resizer can’t fix: a blurred or old photo, a face that is too small, caps or dark glasses, a coloured background, or a signature in capital letters. Retake the image if any of these apply.
Is it safe to use this tool?
Yes. Your image is processed inside your browser and is never sent to any server. You can even switch off mobile data after the page loads and it still works.
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