RRB Signature Size: 30–49 KB, Minimum 140×60 px
Railway Recruitment Board CEN 01/2026 and CEN 02/2026 require a JPEG signature of 30 to 49 KB, at least 140 by 60 pixels. Use black ink on white paper, running handwriting, scanned at 100 DPI or more. This page starts at that minimum size and a 49 KB ceiling. It does not take the live photo.
Verified on 2026-10-28. RRB CEN 01/2026, paragraph 13.5.1 (PDF)
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Supported formats
JPEG, PNG, WebP
Limitations
- Starts at 140×60 px and a 49 KB ceiling from CEN 01/2026 and CEN 02/2026.
- 140×60 is the published minimum, not a maximum pixel size.
- It does not force the file above 30 KB. Raise a short file on Increase image size in KB.
- It does not capture a live RRB photograph.
Specification
Verified on 2026-10-28
| Item | What the source says |
|---|---|
| Format | JPG or JPEG only |
| File size | Between 30 KB and 49 KB |
| Dimensions | Minimum 140 pixels wide × 60 pixels high |
| Scan | Minimum 100 DPI. Black ink on white paper. Running handwriting, not block capitals. |
| Scan box in these two notices | 35 mm wide × 20 mm high, with the signature centered. Open the CEN you are filling before you assume every railway notice uses that box. |
How to prepare the file
- Open the CEN you are applying under and confirm paragraph 13.5.1 or 17.5.1 still matches this table.
- Sign in black ink on white paper in running handwriting. Scan at 100 DPI or higher.
- Upload here. The page starts at 140×60 px and a 49 KB ceiling so the file stays under the published maximum.
- If the download is under 30 KB, use Increase image size in KB and set 30 KB. Keep the result under 49 KB.
- Check bytes and pixels on your device. Recent RRB notices capture the photograph live; this page is only the signature file.
Questions
What signature file size do these RRB notices allow?
CEN 01/2026 paragraph 13.5.1 and CEN 02/2026 paragraph 17.5.1 both say JPG/JPEG between 30 KB and 49 KB. Verified on 2026-10-28.
Is 140×60 pixels the exact size?
Both notices say minimum 140 pixels wide by 60 pixels high. A larger image can still fit if the file stays between 30 and 49 KB. This page starts at that minimum.
What if the signature is under 30 KB?
The compressor on this page keeps the file under 49 KB. It does not force it above 30 KB. Raise it with Increase image size in KB, then confirm it is still under 49 KB.
Do I upload an RRB photograph here?
No. This page resizes the signature. CEN notices that capture a live photograph tell you not to upload a pre-existing photo. Follow the photograph paragraph in your own CEN.