What is the difference between 6cm x 2cm and 4cm x 2cm signature size?

SSC CGL and CHSL notifications officially state 4.0 cm × 2.0 cm (width × height). Certain older state PSC and Police recruitment boards mandate 6.0 cm × 2.0 cm (3:1 aspect ratio). LoomPDF provides quick preset framing that fits both standards with guaranteed 10–20 KB compression.

How can I whiten a signature background taken from a mobile phone camera?

Upload your mobile phone picture of your signature into LoomPDF. Enable the 'White Background' cleaner. The adaptive contrast threshold turns grey phone shadows and yellow room lighting into pure white (#FFFFFF) while enhancing the dark black or blue pen ink.

Why does the SSC portal reject signatures, and how do I avoid it?

SSC auto-rejects signatures if the file size is under 10 KB or over 20 KB, if the signature is cropped too tightly cutting off letters, or if dark paper shadows make OCR unreadable. LoomPDF locks the file strictly to 10–20 KB (default 18 KB) with clean white background contrast.

Govt Portal Standard (SSC • UPSC • Banking IBPS • Police)

SSC Signature Resize 10 to 20 KB (6cm x 2cm & 4cm x 2cm Resizer & Whitener)

Designed for applicants, Common Service Centers (CSC), and cyber cafe operators for official SSC signature resize requirements: crop, whiten, and compress signatures strictly between 10 KB and 20 KB without dark phone shadows, grey paper tint, or blurry ink.

6cm × 2cm vs 4cm × 2cm Dimension Guidelines

SSC recruitment notifications (CGL, CHSL, MTS, GD Constable) specify 4.0 cm width × 2.0 cm height (approx 140 × 60 pixels, 2:1 ratio). State PSC and Police recruitment notifications often mention 6.0 cm width × 2.0 cm height (approx 600 × 200 pixels, 3:1 ratio). LoomPDF provides quick bounding box presets for both formats, locking the output strictly between 10 KB and 20 KB.

Step-by-Step Instructions

Upload Signature: Sign with a black or dark blue pen on clean white unruled paper and upload a photo or scan.
Crop to Official 3:1 or 2:1 Ratio: Align the crop box to frame your signature neatly with standard 6cm × 2cm or 4cm × 2cm proportions.
1-Click Background Whitening: Use the signature cleaner to eliminate mobile phone shadows, yellow lighting tints, and paper texture.
Compression & Export: The file size is automatically locked to strictly 10 KB – 20 KB (default 18 KB) for instant online recruitment portal submission.

Frequently Asked Questions

What is the official SSC signature size in cm and pixels?

SSC notifications mandate 4.0 cm × 2.0 cm (approx 140 × 60 px) or 6.0 cm × 2.0 cm (600 × 200 px), strictly between 10 KB and 20 KB in JPEG format.

How do I whiten a yellow signature from a phone camera?

Enable the White Background cleaner in LoomPDF. It converts shadows and desk texture to solid white #FFFFFF while retaining crisp pen strokes.

Why does SSC reject candidate signatures?

Rejections are caused by file sizes outside 10-20 KB, blurry pens, red ink, or dark shadows across the signature. LoomPDF eliminates these errors automatically.

Related Recruitment Tools:

Govt Exam Photo (20-50 KB) →Add Signature to Passport Photo →Indian Passport Maker →Resize Image & PDF →