How to Use the SBI PO Signature Resizer
- Sign your name in black ink on plain white paper, then photograph or scan it
- Click Select Image or drag and drop the signature image onto the upload area
- The tool pre-fills the required dimensions (140×60 px) and 20KB limit
- Preview the result — check dimensions and file size shown below the image
- Click Download to save the processed JPEG file
SBI PO Signature Requirements
| Requirement | Value |
|---|---|
| Dimensions | 140 × 60 pixels |
| File Size | 10 KB to 20 KB |
| Format | JPEG / JPG |
| Ink & Paper | Black ink on plain white paper |
| Style | Cursive/mixed case — not block capitals |
Why These Exact Specifications Matter
Banking recruitment portals like SBI's use the uploaded signature image for identity verification at the exam center and during document checks, so it needs to be legible and correctly proportioned at a small display size. A signature scanned at the wrong aspect ratio gets squashed or stretched when forced into 140×60 pixels, which can make it look nothing like your actual signature on the day of verification. Getting the size right the first time avoids that mismatch.
Common Mistakes to Avoid
- Signing in capital letters: SBI's guidance explicitly disallows block-letter signatures — sign the way you normally would
- Wrong format: Upload JPEG, not PNG or PDF — most portals reject anything else outright
- File too large or too small: Outside the 10KB–20KB window, the upload is typically rejected — don't over-compress or under-compress
- Wrong dimensions: A signature that isn't roughly 140×60 pixels gets cropped or scaled awkwardly
- Signing with the wrong pen color: Blue ink or pencil often scans poorly — use black ink for the clearest scan
SBI PO Signature Specifications — Full Details
This tool targets the signature specification commonly published for SBI Probationary Officer (PO) recruitment cycles: a 140×60 pixel image, saved as JPEG, sized between 10KB and 20KB, of a signature made in black ink on plain white paper. These numbers are corroborated across multiple independent recruitment-guidance sources for the current SBI PO cycle, since SBI's own detailed advertisement PDF could not be directly fetched at the time this tool was built. Always verify against SBI's official detailed advertisement PDF for your specific recruitment cycle before final submission, since specifications can be revised between cycles. The signature is used throughout the application, admit card, and exam-day verification process.
Frequently Asked Questions
Does resizing reduce signature quality? Minor JPEG compression is applied to meet the 20KB ceiling, but the signature strokes remain clearly legible at the required size.
Does my signature image get uploaded to a server? No. All processing happens in your browser using the Canvas API. Your image never leaves your device.
Is this tool free? Yes. Completely free, no login, no watermark, no limits.
What if my signature still doesn't fit after processing? Sign larger and more centered on the paper before scanning — a signature that fills more of the original frame resizes more cleanly to 140×60 pixels.
Can I reuse the same signature for the photo upload too? No — SBI PO requires separate uploads for photograph and signature with different dimensions; use the SBI PO photo resizer for your photograph.
Can I use this on mobile? Yes. The tool works on Android and iOS browsers without any app installation.