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RRB NTPC signature resizer (30–49 KB)

For CEN 06/2026 the photo is taken live in the form. The file you upload is your signature, 30 to 49 KB.

FreeNo signupOn your deviceSizes checked 11 October 2026
Opening the tool…

Official RRB NTPC upload sizes

From Centralised Employment Notice CEN No. 06/2026, Non-Technical Popular Categories (Graduate), published 7 October 2026. Paras 14.4 (live photo), 14.5.1 (signature) and 14.5.2 (SC/ST certificate). Issued by Railway Recruitment Boards (RRB). Last checked on 11 October 2026.

Photo: RRB does not take a photo file. The application captures a live photo through your webcam or phone front camera against a plain white background. A picture of a printed or on-screen photo is rejected.

FileFormatFile sizeDimensions
SignatureJPG/JPEG only, black ink on white paper, running handwriting30 KB to 49 KBAt least 140 × 60 pixels, scanned at 100 DPI or more. It sits in a 35 mm × 20 mm box on the form.The preset uses 35 × 20 mm at 300 DPI, well above the 140 × 60 pixel minimum.
SC/ST certificate (only if you want the free train travel pass)PDF onlyLess than 400 KBNot specified

How to use it

  1. Sign in running handwriting with a black pen on plain white paper. Do not sign in capital or separate block letters.

  2. Take a photo of the signature in daylight, from straight above, and crop out the table.

  3. The list below is already set to “RRB NTPC signature”: 30–49 KB on a 35 × 20 mm frame at 300 DPI.

  4. Choose the photo and press Resize. Check that the line under the preview says the file is inside 30–49 KB.

  5. Download it and upload it on rrbapply.gov.in. Capture your live photo with the camera when the form asks.

What CEN 06/2026 asks for

The Centralised Employment Notice CEN No. 06/2026 for Non-Technical Popular Categories (Graduate) was published on 7 October 2026. Para 14.5.1 sets the signature rules. Scan the signed paper at a minimum of 100 DPI. The file must be JPG or JPEG only, between 30 KB and 49 KB, and at least 140 pixels wide and 60 pixels tall. On the form, the signature sits in a box 35 mm wide and 20 mm tall, and the image should be centred in it.

Para 14.4 covers the photo. You do not upload a photograph. The application captures a live photo with your webcam or phone front camera, against a plain white background, with no cap, mask or glasses. Taking a picture of a printed or on-screen photo gets the application rejected. That is why this page has only a signature preset.

Why 30 KB is hard to reach, and how the tool handles it

Most signature limits are a ceiling. RRB's is a narrow band with a high floor. A neat signature on white paper at 140 by 60 pixels weighs only a few KB, far under 30. The notice only sets a minimum pixel size, so a larger image is allowed. The tool starts at 35 by 20 mm at 300 DPI, which is 413 by 236 pixels, and tries the highest JPEG quality. If the file is still under 30 KB, it makes the frame larger, keeping the same shape, until the file is inside 30 to 49 KB. The result line shows the final pixel size.

Many resizer sites still quote an older “photo 30–70 KB, 320 × 240” rule for RRB. That does not apply to CEN 06/2026. Use the numbers in the table above, and check the date we last read the notice.

Reasons RRB rejects a signature

The notice lists them: a signature by someone else, a non-white background, ink that is not black, a signature in block or capital letters, a poor or unclear image, a signature that is cut off, an image that is not a signature, a blank image, or a thumb impression in place of a signature. Your signature must also match the one you give at the exam, document verification, medical exam and appointment, so sign the way you always do.

If you belong to the SC or ST category and want the free train travel pass, you also upload your SC/ST certificate as a PDF under 400 KB. Use Compress PDF if your scan is bigger. Applications close on 6 November 2026 at 23:59.

FAQ

What is the RRB NTPC signature size?
JPG or JPEG, between 30 KB and 49 KB, at least 140 × 60 pixels, scanned at 100 DPI or more, according to CEN 06/2026.
What is the RRB NTPC photo size?
There is no photo file for CEN 06/2026. The form takes a live photo through your webcam or phone front camera.
Can the signature be bigger than 140 × 60 pixels?
Yes. 140 × 60 is the minimum. The tool usually needs a larger frame to reach the 30 KB floor.
Can I sign in blue ink?
The notice says to use a black ink pen on white paper, and lists non-black ink as a reason for rejection.
Does this also apply to RRB Group D or NTPC Undergraduate?
Each CEN has its own notice. Read the signature rules in the notice for your CEN and change the boxes if they differ.
Is my signature uploaded anywhere?
No. The resize runs in your browser and the file stays on your device.

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