Signature Compress & Crop

Every signature image is cropped and resized to exactly 413 × 177 pixels — a wide landscape dimension accepted by Indian government exam portals (UPSC, SSC, Railways, Banking), university admission systems, scholarship portals, and bank account opening forms that require an uploaded signature in this standard format.

A 20 KB cap is standard on Indian government exam portals (SSC, UPSC, Railways, IBPS), university application systems, and municipality portals. Signature images are simple dark strokes on a light background — they require very little file size. The 20 KB limit keeps server storage and bandwidth usage minimal when processing millions of applications simultaneously.

This tool guarantees your signature meets that cap every single time, so your application is never rejected at the upload step.

You can upload JPG, JPEG, PNG, BMP, TIFF, and WebP files up to 10 MB. The tool converts the cropped signature to JPEG before compressing it to below 20 KB. PNG transparency — common in digital signature exports — is filled with white automatically before conversion.

Yes, in almost all cases. Signatures are simple dark strokes on a light background — this structure compresses extremely efficiently with minimal visible degradation. The tool starts at JPEG quality 0.92 and reduces only as much as required. A clean, well-lit scanned signature typically retains excellent legibility well within the 20 KB limit.

The cropper locks to the 413 : 177 aspect ratio automatically. Drag the crop box so your complete signature fits inside with a small, even margin on all sides — avoid cutting off any stroke. Zoom in to fill the frame with your signature rather than leaving large white areas, as excessive white space wastes the available file budget on blank pixels. Click Reset at any time to restore the original crop position.

Yes. The cropper toolbar has Rotate Left (−90°) and Rotate Right (+90°) buttons — useful for scanned signatures that were captured in portrait orientation or photographed sideways. Zoom In and Zoom Out are also available for fine framing.

Yes — a white or off-white background is ideal. Government portals expect a light background behind the signature. If your source image has a transparent background (PNG), the tool fills it with white automatically before conversion. Avoid coloured or dark backgrounds as these may be rejected by portal validators or look unprofessional on the application form.

Either works, but a flat-bed scan at 200–300 DPI produces the cleanest results — sharp strokes, flat white background, no shadows. If scanning is not possible, photograph the signature on plain white paper in bright, even daylight — avoid shadows, paper creases, and tilting. Crop the photo tightly around the signature before uploading to help the cropper frame it accurately.

20 KB is a tight target for noisy or complex source images. To improve output quality:

(1) Keep source resolution moderate — 800×400 px to 2000×1000 px is ideal. Very high resolution images need more aggressive compression to reach 20 KB.

(2) Maximise contrast — sign with a dark pen on bright white paper. Faint or grey strokes compress poorly and look washed out.

(3) Remove coloured backgrounds before uploading. Plain white compresses far more efficiently than a textured or tinted background.

(4) Avoid photos with shadows — scan flat, or photograph directly above the paper with diffuse daylight.

Yes — completely free with no registration, no login, and no watermark on the output image. There are no daily limits — compress and download as many signature images as you need, whenever you need them.