Free · No Signup · 100% Private

Online Signature Maker

Draw, customize & download your handwritten digital signature as transparent PNG, JPG, WebP, or SVG — instantly in your browser.

Draw Your Signature

Mouse · Touch · Stylus

Slow strokes = smoother curves  ·  Canvas: 800×300px

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Draw your signature above to enable download

Pen Color
Stroke Width
2px
Background
Canvas Size

Custom dimensions

×

50 – 4000 px per side · Enter ↵ to apply

How it works

Four steps to a professional digital signature.

1

Draw your signature

Use mouse, finger, or stylus on the canvas. Slow deliberate strokes produce the smoothest results.

2

Customize appearance

Choose pen color (10 presets or custom hex), stroke width 1–20px, and background color or transparent.

3

Set canvas dimensions

Pick a preset (Standard, SSC, Wide, Square) or enter custom width × height up to 4000×4000px.

4

Name & download

Type your file name, then click PNG for transparent, JPG for solid, WebP for modern, or SVG for scalable vector.

Why use PortImg Signature Maker?

Built for every use case — government portals, PDFs, contracts, and email.

Transparent PNG export

Download with a transparent background for overlaying on PDFs, Word docs, or forms without a white box.

10 colors + custom picker

Black, navy, blue, green, red, purple, charcoal and more — or enter any hex value with the built-in color picker.

Touch & stylus optimised

Mobile-first canvas using pointer events. Smooth on finger, Apple Pencil, S Pen, and any capacitive stylus.

Undo stroke by stroke

Undo only the last pen stroke without losing the rest of your signature. Up to 50 undo steps stored per session.

Custom canvas dimensions

Enter any width × height up to 4000px. Presets include SSC (472×158px), Standard (800×300), Wide, and Square.

100% browser-private

Everything runs via HTML5 Canvas in your browser. Your signature is never transmitted, stored, or seen by any server.

4

Download formats

10+

Pen colors

50

Undo steps

100%

Browser-based

Where you can use your signature

Compatible with all major document platforms and government portals.

Govt Forms
PDF Docs
Email Footer
Online Apps
Word / Excel
SSC / UPSC

Frequently asked questions

Everything about creating and downloading digital signatures online.

What is an online signature maker and how does it work?

An online signature maker is a browser-based canvas tool that lets you draw a handwritten signature using a mouse, touchscreen, or stylus. Unlike font-based signature generators that render a typeface approximation, a draw-based tool captures your actual hand movements — producing a genuine, unique signature you can use in documents, PDFs, and government portals. The HTML5 Canvas API processes every stroke locally in your browser, so your signature never leaves your device.

How to create a transparent background signature for documents

Select "None" (transparent) in the Background panel before you start drawing. When you click the PNG or WebP download button, the saved file will have a fully transparent alpha channel. Open it in Word, Google Docs, Photoshop, Adobe Acrobat, or Canva and place it directly on top of text without any white rectangle showing behind it. Note: JPG format always produces a solid background — use PNG or WebP for transparency.

How to create a digital signature for SSC, UPSC, and bank forms

Most Indian government exam and banking portals require a signature image in JPEG format with a white background and specific dimensions. For SSC the required size is 236×79 pixels (10–20 KB). Use the SSC Sig preset (472×158px) for a high-resolution starting point, choose white background, sign with black or blue ink color, and download as JPG. Then use our SSC Photo Resizer to scale to the exact 236×79px and compress to under 20 KB before uploading to ssc.gov.in.

Best practices for a professional-looking digital signature

Draw slowly — slower pen movements produce smoother Bézier curves. Use a stroke width of 2–3px for a natural pen-like appearance, or 4–5px for a bold marker look. Choose navy blue (#1e3a5f) or pure black (#000000) for professional documents. On a touchscreen, use your dominant hand's index finger and rest your palm off the screen. For the most accurate result, use a tablet with an active stylus — an Apple Pencil or Samsung S Pen can reproduce your real handwriting almost perfectly.

Create your digital signature now

Free, instant, private. Works on any device — no app, no account, no watermark.