Official Digital & E-Sign Specifications

Email & E-Sign Signature Resizer
(10KB - 100KB)

Resize email signature pictures and e-signature blocks for Outlook, Gmail, Adobe Sign, DocuSign, and PDF forms. Auto-crop, remove background, and format to 300x100 px.

⚡ 300 × 100 px📐 6 × 2 cm🎯 Target: 35 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:Email & E-Sign (300x100 px)Target: 35 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: 300 : 100

Target Maximum File Size Limit:35 KB

Enhancements & Orientation

White Paper CleanerDarken Ink Strokes

📋 Email and E-Signature Dimensions & Best Practices:

Email signature pictures (for Microsoft Outlook, Apple Mail, and Gmail) look sharpest when sized to 300 x 100 pixels (or 400 x 120 pixels) at 72–96 DPI with file size under 50 KB. For digital document signers (Adobe Sign, DocuSign), transparent PNG or high-contrast white JPG ensures seamless placement.

Step 2: Live Crop & Portal Preview

Ready (Email & E-Sign)

✍️

No Signature Scan Uploaded

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

DIMENSIONS300 x 100 px

EST. FILE SIZE~35 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 Email & E-Sign Signature Specifications

Verified criteria mandated by Email & E-Signature Resizer (Outlook, Adobe Sign, DocuSign) recruitment portal.

📌 Email and E-Signature Dimensions & Best Practices:

Requirement Parameter	Official Mandated Value
Pixel Dimensions	300 x 100 pixels (Width x Height)
Dimensions in CM	6 cm x 2 cm
Allowed File Size Limit	10 KB to 100 KB (Target: 35 KB)
Image File Format	PNG / JPEG / JPG format
Pen Ink Color	Black or Dark Blue Ink
Background Paper	Transparent or Pure White (Use our built-in paper whitening tool)
Mandatory Rules	Ideal 300x100 px dimension for Outlook, Gmail, Adobe Acrobat, DocuSign, and PDF forms.

🛡️

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

The specifications listed above (300×100 px, 10KB–100KB JPEG format) are compiled from official notification standards issued by Email & E-Signature Resizer (Outlook, Adobe Sign, DocuSign).

📷

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 Email & E-Sign

Upload Signature

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

Auto-Configured

Dimensions (300x100 px) and 35 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 Email & E-Sign:

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Whether you need to resize signature for Email & E-Sign, convert to 300 × 100 pixels (6 × 2 cm), or compress within 10 KB – 100 KB JPG with paper background whitening, this single utility handles it all in 1-click.

❓ Help & FAQs

Frequently Asked Questions (Email & E-Sign Signature Resizing & Specifications)

Official dimensions (300x100 px), KB limits (10–100 KB), ink requirements, and rejection prevention rules.

1How to resize signature image in Microsoft Outlook?▼

Crop and resize your signature to 300 x 100 pixels on Result91, save as PNG or JPG, open Outlook Settings > Mail > Signatures, and insert the resized image. It will render at native 100% scale without looking enormous.

2How to resize signature block in Adobe Sign or DocuSign?▼

Upload your handwritten signature, use our White Background Cleaner to isolate ink strokes, resize to 300x100 px, and upload to Adobe Sign or DocuSign as your saved digital signature stamp.

3How to convert paper signature to e-signature free?▼

Photograph your signature with your phone, upload to Result91 Signature Resizer, enable 'White Paper Cleaner' and 'Darken Ink', then download your digital e-sign file ready for any PDF.