Photo Signature Creator

Create clean digital signatures from handwritten photos. Remove background, choose ink color, and download in PNG or JPEG for SSC, UPSC, and Sarkari exam forms.

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Photo Signature Creator – For Government Exam Applications

Almost every Sarkari (government) exam application in India requires candidates to upload a digital signature image alongside their passport photo. The Photo Signature Creator from SarkariTool helps you convert a photograph of your handwritten signature into a clean, professional digital image — entirely free and within seconds.

How It Works

  1. Sign on white paper using a black or blue ink pen
  2. Take a photo or scan the signature
  3. Upload the image to this tool
  4. Adjust sensitivity until only your signature strokes remain
  5. Download as PNG (transparent) or JPEG (white background)

Features

  • Automatic background removal — Removes paper texture and noise
  • Auto-crop — Trims empty space around the signature
  • Ink color change — Recolor to black, navy, blue, red, or any custom color
  • Preset output sizes — 140 px (SSC/UPSC spec), 200 px, 300 px, 400 px
  • 100% private — Everything runs in your browser, nothing uploaded

Common Requirements

Most government exam portals specify signature image dimensions between 100–300 px wide, in JPEG format with white background, and file size under 20–50 KB. This tool handles all of these requirements out of the box.

Frequently Asked Questions

What is a Photo Signature Creator?
A Photo Signature Creator takes a photograph of your handwritten signature and converts it into a clean digital image with a transparent or white background. This is essential for government exam forms, online applications, and document submissions.

How does background removal work?
The tool uses luminance-based thresholding to separate the dark ink strokes from the light background. Pixels brighter than the sensitivity threshold become transparent, while darker pixels are retained as the signature. You can adjust the sensitivity slider to fine-tune the result.

Can I change the ink color of my signature?
Yes. You can choose from preset ink colors (Black, Navy, Blue, Red) or pick any custom color. The tool recolors all signature strokes to your chosen ink color while maintaining the natural stroke opacity.

What output formats are available?
PNG format preserves the transparent background, which is ideal for overlaying your signature on documents. JPEG format adds a white background, which is required by some exam portals. Both formats are available.

What output sizes can I choose?
Preset output widths include: 300 px (standard), 200 px (small), 400 px (large), and 140 px (SSC/UPSC specification). You can also keep the original size. The height is auto-calculated to maintain the aspect ratio.

Is my signature secure?
Absolutely. All processing happens in your browser — your signature image never leaves your device. No data is uploaded to any server.

What size signature photo should I upload?
For best results, photograph your signature on a clean white paper with dark ink (black or blue). Ensure good lighting without shadows. A resolution of at least 300×150 pixels is recommended. The tool will auto-crop to the signature bounds.