Signature Resizer
Resize and optimize your handwritten signature for strict government upload portals in seconds — right in your browser, nothing uploaded anywhere.
1 · Upload your signature
Drag & drop your signature photo here
or click to browse
Processing runs entirely on this device using HTML5 Canvas — your signature is never sent to a server.
Output preview
01What is this tool?
A browser-side utility that converts raw photographs or mobile scans of handwritten signatures into the exact dimensions and file-size range mandated by strict government recruitment portals — no graphic editing software required. It handles aspect-ratio scaling, format conversion and size reduction directly on your device.
02How it works
- Pixel mapping — reads your image and centers the ink signature inside a standardized 140×60 px canvas.
- Background correction — transparent pixels or gray scan edges are blended into pure white.
- Adaptive byte compression — the JPG quality level is dialled down step by step until the file sits under your chosen size limit.
Scaling formula
03Real example
| Attribute | Original upload | Resized output |
|---|---|---|
| Source | Mobile camera photo of paper | Processed JPG |
| Dimensions | 2400 × 1080 px | 140 × 60 px |
| File size | 2.4 MB | 16.2 KB |
| Format | PNG / large JPEG | Standard JPG |
| Status | Rejected — oversized, wrong format | Accepted |
04How to use the tool
Sign & snap
Black/dark-blue pen on clean white unruled paper, then a clear photo.
Upload
Drag into the box above or click Browse.
Set file limit
Keep the slider around 18 KB — safely under a 20 KB cap.
Convert
Click Resize to 140×60.
Download
Click Download and upload the saved .jpg to your application.
05Getting a clean source signature
- Sign on plain, unruled white paper — no grid or lined pages
- Use a black or dark blue pen for the darkest, cleanest strokes
- Photograph in even daylight — avoid harsh shadows across the ink
- Hold the camera directly above the signature, not at an angle
- Crop out extra blank paper before uploading, if you can
06Practical uses
- Recruitment portals — BPM/ABPM-style registrations and similar signature-upload steps.
- SSC & State PSC forms — small-dimension signature uploads for competitive exam applications.
- Competitive exams — clear handwritten signature uploads for entrance and teacher-eligibility tests.
07Related tools
08FAQ
What is the usual signature size for government portals?
This tool targets 140×60 px and a 10–20 KB file size, a common requirement across Indian recruitment portals.
Why does a portal reject a file that looks small enough?
Some servers reject anything even slightly over the stated ceiling — keeping the slider a couple of KB under the limit avoids that edge case.
Can I upload a PNG signature?
Most portals only accept .jpg/.jpeg. This tool converts PNGs and other formats to a compliant JPG automatically.
Will my signature get distorted or blurred?
No — the tool uses proportional downsampling rather than stretching, keeping strokes clear on a crisp white background.
Is it safe to upload my signature here?
Yes — processing runs entirely in your browser using client-side JavaScript. Nothing is sent to or stored on a server.