Official Ratio & Dimensions Specifications

4x2 cm / 50x20 mm Signature Resizer
(10KB - 20KB)

Resize signature to 4 * 2 cm (signature resize 4 * 2 cm / 4*2). Convert 4cm x 2cm and 50mm x 20mm into 140x60 pixels and 10KB-20KB JPG online free.

⚡ 140 × 60 px📐 4 × 2 cm🎯 Target: 18 KB🔒 100% Client-Side Safe

Step 1: Choose Exam Portal or Custom Mode

Select an official exam preset (140x60 px, 10–20 KB) or use custom manual dimensions.

108 Official Presets

Currently Active:4x2 cm / 50x20 mm (140x60 px)Target: 18 KB

🖊️ Ink: Black or Dark Blue Ink

Upload Signature Scan / Photo✍️ Need to draw or type signature?

Click, Drag & Drop Scan, or Press Ctrl+VJPEG, JPG, PNG, WEBP · Supports Instant Clipboard Paste

Dimensions & Units:

Pixels (px)Centimeters (cm)Millimeters (mm)

Width (px)

Height (px)

Lock Aspect RatioRatio: 140 : 60

Target Maximum File Size Limit:18 KB

Enhancements & Orientation

White Paper CleanerDarken Ink Strokes

📋 Centimeter (CM) and Millimeter (MM) Signature Dimensions:

When exam notification PDFs specify physical signature box sizes as 4.0 cm x 2.0 cm or 50 mm x 20 mm, they correspond to digital resolutions between 140 x 60 px (standard display) to 400 x 200 px (high-DPI scanning) with strict 10 KB to 20 KB byte limits.

Step 2: Live Crop & Portal Preview

Ready (4x2 cm / 50x20 mm)

✍️

No Signature Scan Uploaded

Upload your signature photo or scan, drag & drop, or paste with Ctrl+V.

DIMENSIONS140 x 60 px

EST. FILE SIZE~18 KB

COMPLIANCE100% Pass ✓

💡

Golden Rule: Government portals (SSC, RRB, IBPS, UPSC) automatically reject signatures written in CAPITAL BLOCK LETTERS. Ensure your signature uses standard running handwriting in black or dark blue ink.

✍️

Official 4x2 cm / 50x20 mm Signature Specifications

Verified criteria mandated by 4cm x 2cm / 50mm x 20mm Signature Resizer (10KB - 20KB) recruitment portal.

📌 Centimeter (CM) and Millimeter (MM) Signature Dimensions:

Requirement Parameter	Official Mandated Value
Pixel Dimensions	140 x 60 pixels (Width x Height)
Dimensions in CM	4 cm x 2 cm
Allowed File Size Limit	10 KB to 20 KB (Target: 18 KB)
Image File Format	JPEG / JPG format
Pen Ink Color	Black or Dark Blue Ink
Background Paper	Plain White Paper (Use our built-in paper whitening tool)
Mandatory Rules	4.0 cm x 2.0 cm / 50 mm x 20 mm standard exam signature box.

🛡️

E-E-A-T Verified Specifications & Reference Citation✓ Verified Guidelines

The specifications listed above (140×60 px, 10KB–20KB JPEG format) are compiled from official notification standards issued by 4cm x 2cm / 50mm x 20mm Signature Resizer (10KB - 20KB).

📷

Need to resize your passport photo too?Compress photo to exact 20KB–50KB, 50KB–100KB, or add Date of Photo (DOP) banner.

Open Exam Photo Resizer →

🚀 How to Resize & Prepare Your Signature for 4x2 cm / 50x20 mm

Upload Signature

Upload a photo of your signature signed with black or blue pen on clean white paper.

Auto-Configured

Dimensions (140x60 px) and 18 KB limit apply automatically.

Whiten & Darken

Enable 'White Paper Cleaner' to remove yellow room light and boost black ink contrast.

Download JPG

Download your optimized, portal-ready JPEG signature with zero upload rejection.

⚡ Dimensions, Units, Ratios & KB Tools

Dimensions, Ratios & KB Size Signature Resizers

Compress and format your signature by exact pixel dimensions, centimeters (cm), aspect ratios, or target file size limits (KB).

📐

Pixel Dimension Subpages (140x60, 300x80, 80x80, 800px)

140x60 • 300x80 • 80x80 • 800px

⚡140 x 60 Pixels

140 × 60 px • SSC, RRB & IBPS

10–20 KB JPG→

🏦300 x 80 Pixels

300 × 80 px • Banking & Entrances

10–50 KB JPG→

🖼️200 x 60 Pixels

200 × 60 px • 3.3:1 Wide Box

10–20 KB JPG→

📜170 x 70 Pixels

170 × 70 px • State CET & Board

10–30 KB JPG→

⚡100 x 80 Pixels

100 × 80 px • Student Portals

5–20 KB JPG→

🔲80 x 80 Pixels

80 × 80 px • 1:1 Micro Avatar

5–20 KB JPG→

🔲300 x 300 Pixels (1:1)

300 × 300 px • PSCs & Courts

20–50 KB JPG→

💻256 x 64 Pixels

256 × 64 px • Hardware Pad

10–30 KB JPG→

⚡60 x 140 Pixels

60 × 140 px • Vertical Standard

10–20 KB JPG→

⚡80 x 300 Pixels

80 × 300 px • Side Panel Strip

10–50 KB JPG→

💎800px High-Resolution

800 × 320 px • Legal & E-Sign

50–150 KB JPG→

📏

Centimeter (CM) & Physical Metric Subpages (6x2cm, 4x2cm, 3.5x1.5cm)

6x2 cm • 4x2 cm • 3.5x1.5 cm • 6x3 cm

📏Signature Resizer in CM

Centimeters & Millimeters Converter

10–50 KB JPG→

📐4cm x 2cm / 50x20 mm

4.0 × 2.0 cm • 140×60 px

10–20 KB JPG→

🏛️3.5cm x 1.5cm Signature

3.5 × 1.5 cm • SSC / IBPS Standard

10–20 KB JPG→

📏6cm x 2cm Signature

6.0 × 2.0 cm • 472×157 px (PSCs)

10–50 KB JPG→

⚖️6cm x 3cm Signature

6.0 × 3.0 cm • High Court & Judicial

10–50 KB JPG→

💳2cm x 4.5cm / 4.5x2 cm

4.5 × 2.0 cm • PAN Card & State ID

10–20 KB JPG→

📏2cm x 6cm Signature

6.0 × 2.0 cm • State PSC & Courts

10–50 KB JPG→

🎯

Aspect Ratio & Format Subpages (5:2 Landscape, 2:1 Ratio, 4.5cm, 5cm)

5:2 • 2:1 • 4.5:2 • 5:2

📐5:2 Aspect Ratio Signature

200 × 80 px • India Post GDS & Wide Box

10–20 KB JPG→

📐2:1 Aspect Ratio / 2cm

200 × 100 px • 4.0×2.0 cm (2:1 Ratio)

10–20 KB JPG→

📐4.5cm / 4:5 Format Signature

225 × 100 px • 4.5×2.0 cm ID Format

10–30 KB JPG→

📐5cm / 5:2 Shorthand

200 × 80 px • 5.0×2.0 cm Box

10–20 KB JPG→

📁

Strict File Size (KB Limit) Target Resizers

3KB to 400KB Precision Compression

⚡5KB Signature Resizer

Under 5 KB JPG • Micro Scan

5 KB Target→

⚡10KB Signature Resizer

Exact 10 KB JPG • Legacy Portals

10 KB Target→

🎯15KB Signature Resizer

10KB–20KB Sweet Spot

15 KB Target→

🎯20KB Signature Resizer

Under 20KB JPG • SSC, RRB & Bank

18 KB Target→

🩺30KB (NEET / JEE)

4 KB to 30 KB JPG • NTA Entrance

28 KB Target→

🏢40KB Signature Resizer

Under 40KB JPG • DSSSB & Court

38 KB Target→

💎50KB Signature Resizer

Under 50KB JPG • State PSCs

45 KB Target→

🎓100KB Signature Resizer

Under 100KB JPG • UPSC & GATE

90 KB Target→

🎯10 to 20 KB Range

Official SSC, RRB, IBPS Standard

10–20 KB Range→

🔄50KB ➔ 20KB Compressor

Reduce Phone Scans Under 20KB

18 KB Target→

⚡ Quick Jump to Exact File Size (KB) Subpages:

3 KB 4 KB 5 KB 6 KB 7 KB 8 KB 9 KB 10 KB 15 KB 18 KB 20 KB (SSC/RRB)25 KB 30 KB (NEET)35 KB 40 KB (DSSSB)45 KB 49 KB 50 KB (PSC)60 KB 70 KB 80 KB 90 KB 100 KB (UPSC)200 KB (GATE)400 KB (HD)

📊 Official Minimum-to-Maximum Range Presets:

10 to 20 KB (SSC / RRB)20 to 30 KB (Banking)20 to 50 KB (State PSC)4 to 30 KB (NEET/JEE)5 to 10 KB 5 to 20 KB (Police)10 to 50 KB 20 to 100 KB (UPSC/GATE)50 to 100 KB 80 to 150 KB 50KB ➔ 20KB Compressor Under 10 KB

🏛️ Official Exam Boards & Portals Directory

Browse Exam & Recruitment Board Signature Presets

Select your recruitment board, commission, or government application portal below to auto-configure official signature guidelines, dimensions, and KB limits.

🏛️

Staff Selection Commission (SSC Exams)

🚂

Indian Railways (RRB Recruitments)

🚂RRB (All Exams)

140 × 60 px (50×20 mm)

10–20 KB JPG→

🚂RRB NTPC

140 × 60 px (50×20 mm)

10–20 KB JPG→

🔧RRB Technician

140 × 60 px (50×20 mm)

10–20 KB JPG→

🛤️RRB Group D

140 × 60 px (50×20 mm)

10–20 KB JPG→

🚆RRB ALP

140 × 60 px (50×20 mm)

10–20 KB JPG→

🏦

Banking & Insurance Exams (IBPS, SBI, RBI)

🏦IBPS RRB (Gramin Bank)

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

🏦IBPS Banking

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

💰SBI PO/Clerk

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

🛡️NICL Insurance

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

🏢RBI Grade B

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

🎓

UPSC & Defence (Civil Services, NDA, CDS, AFCAT)

🎓UPSC OTR / CSE

350 × 350 px (3.5×3.5 cm)

20–300 KB JPG→

⚔️UPSC NDA

350 × 350 px (3.5×3.5 cm)

20–300 KB JPG→

🎖️UPSC CDS

350 × 350 px (3.5×3.5 cm)

🩺

Entrance & Teaching (NEET, GATE, JEE, CTET, CAT)

🔬IIT GATE

560 × 160 px (5×2 cm)

5–200 KB JPG→

🩺NTA NEET

200 × 100 px (4×2.5 cm)

4–30 KB JPG→

📐NTA JEE

140 × 60 px (3.5×1.5 cm)

4–30 KB JPG→

🎓NTA CUET

140 × 60 px (3.5×1.5 cm)

4–30 KB JPG→

📜BCECE Bihar

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

🏫KEAM & Polytechnic

140 × 60 px (3.5×1.5 cm)

10–30 KB JPG→

📚CBSE CTET

140 × 60 px (3.5×1.5 cm)

4–30 KB JPG→

📊IIM CAT

300 × 130 px (8×3.5 cm)

20–80 KB JPG→

🏛️

State PSCs & Police Recruitments (BPSC, UPPSC, CG Vyapam, HSSC, TSLPRB)

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

📑Gujarat OJAS

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

🏛️UPPSC

140 × 60 px (3.5×1.5 cm)

140 × 60 px (3.5×1.5 cm)

10–20 KB JPG→

👮UP Police SI (UPSI)

140 × 60 px (3.5×1.5 cm)

5–20 KB JPG→

👮UP Police & Guard

140 × 60 px (3.5×1.5 cm)

📮

Postal, Identity & Subordinate Portals (India Post, PAN, DL, DSSSB, Courts)

300 × 100 px (6×2 cm)

10–100 KB JPG→

💳PAN Card Signature

400 × 200 px (4.5×2 cm)

140 × 110 px (4×3 cm)

10–40 KB JPG→

📝UPSSSC PET

140 × 60 px (3.5×1.5 cm)

🔍

Supported Format Variations & Related Search Terms

This tool automatically complies with all of the following specifications, format terms, and search variations for 4x2 cm / 50x20 mm:

✓ 4x2 cm signature resizer✓ 4 2 cm✓ 4cm x 2cm✓ 4cm x 2cm in pixels✓ signature resize 4 2 cm✓ signature resize 4 2✓ signature resize 4cm x 2cm✓ signature resize 4cm x 2cm in pixels✓ signature resize 4 x 2 cm✓ 50mm x 20mm✓ signature resize 50mm x 20mm✓ signature resize 50mm x 20mm in pixels✓ signature resize 50mm x 20mm online free✓ 4 2✓ 4x2

Whether you need to resize signature for 4x2 cm / 50x20 mm, convert to 140 × 60 pixels (4 × 2 cm), or compress within 10 KB – 20 KB JPG with paper background whitening, this single utility handles it all in 1-click.

❓ Help & FAQs

Frequently Asked Questions (4x2 cm / 50x20 mm Signature Resizing & Specifications)

Official dimensions (140x60 px), KB limits (10–20 KB), ink requirements, and rejection prevention rules.

1What is 4cm x 2cm signature size in digital pixels?▼

At standard portal web resolution (96-150 DPI), 4.0 cm x 2.0 cm is rendered as 140 x 60 pixels. At 200 DPI scan resolution, it corresponds to 315 x 157 pixels.