✍️ Dedicated Signature Resizer Tool

Signature Resizer Online
Reduce Signature Size in KB for Forms

Crop, clean, resize, and compress your signature image to exact portal dimensions (140×60 px, 256×64 px, 400×200 px) and file limits (10 KB to 20 KB). Automatic white background padding for transparent PNGs.

📋 Official Requirements & Validation Specs (2026)

Dimensions 140 × 60 px (SSC / IBPS) | 256 × 64 px (Aaple Sarkar) | 400 × 200 px (UTI PAN)

File Size 10 KB to 20 KB (SSC/IBPS) | 3 KB to 9 KB (Aaple Sarkar) | 20 KB to 100 KB (UPSC)

Ink Color Black or Dark Blue ink on clean white paper

Tip Sign on unruled white paper with a bold black pen, take a clear photo under good light, and crop close to the signature.

Quick Select: UPSC (20-300KB) SSC (20-50KB) PAN Card (213x213px) NEET UG JEE Main IBPS Banking MPSC / Police Signature Resizer 20 KB Resizer 50 KB Resizer All 30+ Form Presets →

📸

Upload Photo, Signature, or Thumb Impression

Drag and drop image here, or tap to browse from phone/PC

Supports JPG, PNG, WEBP · 100% Secure & Private in Browser

⚡ Select Target Form / Exam Preset (2026):

Width (px):

Height (px):

Max Size (KB):

JPG Compression Quality: 85%

Your resized preview will appear here with live file size stats.

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Compare Official Form Specifications (2026)

Direct dimensions, pixel limits, and KB requirements for top Indian government and entrance exam forms.

Exam / Application Portal	Photo Dimensions & Size	Signature Dimensions & Size	Thumb / Marksheet Rules
SSC CGL / CHSL / MTS / GD	3.5 × 4.5 cm (200 × 230 px) 20 KB to 50 KB JPG	4.0 × 2.0 cm (140 × 60 px) 10 KB to 20 KB JPG	White background, without spectacles or cap
UPSC Civil Services / OTR	3.5 × 4.5 cm (min 350 × 350 px) 20 KB to 300 KB JPG	min 350 × 350 px 20 KB to 100 KB JPG	Face must cover 75% of photo; name & date at bottom
NSDL & UTI PAN Card	213 × 213 px (300 DPI) Under 50 KB JPG	400 × 200 px (300/600 DPI) Under 50–60 KB JPG	Aadhaar PDF / Proof documents under 300 KB
NEET UG & JEE Main (NTA)	3.5 × 4.5 cm (Passport & Postcard) 10 KB to 200 KB JPG	3.5 × 1.5 cm 4 KB to 30 KB JPG	Postcard size: 4"x6" (10-200 KB); Fingers/thumb 10-200 KB
IBPS / SBI PO & Clerk	200 × 230 px (4.5 × 3.5 cm) 20 KB to 50 KB JPG	140 × 60 px (Black ink only) 10 KB to 20 KB JPG	Left Thumb Impression: 240 × 240 px (10 KB to 20 KB)
Sarathi Driving Licence	35 × 45 mm (Passport photo) 10 KB to 20 KB JPG	35 × 15 mm 10 KB to 20 KB JPG	Medical cert & documents PDF under 200 KB
MPSC & Police Bharti	3.5 × 4.5 cm (160 × 212 px) 20 KB to 50 KB JPG	256 × 64 px 10 KB to 20 KB JPG	Caste certificate & Non-Creamy Layer PDF under 250 KB

📐 CM to Pixel & DPI Calculator

Need to convert centimeter or millimeter requirements to pixel dimensions? Use our formula-accurate calculator:

Width (cm):

Height (cm):

Resolution (DPI):

Resulting Dimensions:

276 × 354 pixels

Frequently Asked Questions

Answers to common questions about signature resizer online and fixing upload validation errors.

What is the standard signature size for government exam forms?

Most central exams (SSC, IBPS, RRB) require a signature of 140 × 60 pixels (4 cm × 2 cm) between 10 KB and 20 KB. UPSC allows up to 350 × 350 pixels between 20 KB and 100 KB.

How to clean background on signature photos?

Sign on blank white paper in black ink. Our tool automatically ensures any transparent PNG or scanned canvas has a crisp pure white background required by portal scanners.

Can I resize my signature on mobile phone?

Yes! Snap a photo of your signature with your phone, upload it here, adjust width and height, and download in 2 seconds.

Signature Resizer Online Reduce Signature Size in KB for Forms