Free Adobe Sign Alternative: Sign PDFs Without a Subscription
Adobe Sign is a powerful enterprise e-signature platform — but it costs $14.99 to $39.99 per month per user. For most people who just need to sign a form, add a signature to a contract, or create a signature image, there is a completely free alternative that runs entirely in the browser with no subscription and no account.
Quick Answer
Adobe Sign is a powerful enterprise e-signature platform — but it costs $14.99 to $39.99 per month per user. For most people who just need to sign a form, add a signature to a contract, or create a signature image, there is a completely free alternative that runs entirely in the browser with no subscription and no account.
Try it now — free, no signup
Your images stay on your device. Nothing is uploaded to any server.
Step-by-Step Guide
3 steps · takes under 1 minute
Create your e-signature
Open the E-Signature Maker and draw, type, or upload your handwritten signature. Download as a transparent PNG. Free, no account, takes under a minute.
Sign your PDF
Open the Sign PDF tool, upload your document, click 'Upload Image Signature', position your signature on the signing line, resize to fit, and download the signed PDF.
Verify what you need
For everyday documents, client agreements, internal forms, and non-notarised contracts, this is legally sufficient in most jurisdictions. For high-stakes documents requiring audit trails (mortgage deeds, regulated financial agreements), a certified service is appropriate.
100% Private — Zero Uploads
ImgToolkit runs entirely in your browser using the Canvas API. Your images are never sent to a server, never stored in the cloud, and never seen by anyone else. This makes it safe for sensitive documents, client work, medical imagery, and confidential screenshots.
Pro tip
Use 75–85% quality for web images — you get 60–80% smaller files with no visible difference at normal screen sizes.
Format & File Size Comparison
Same 1080×1080px photo processed four ways
| Format | Quality | File Size | Notes |
|---|---|---|---|
| PNG (original) | Perfect | 4.2 MB | No compression — too large for web |
| Compressed PNG | Visually identical | 1.1 MB | −74% — transparency preserved |
| JPG (85% quality) | Excellent | 310 KB | −93% · Best for photos |
| WebP (85%)BEST | Excellent | 205 KB | −95% · Recommended for web |
Based on a 1080×1080px photo. Results vary by image content and complexity.
Related Free Tools
All tools run in your browser — no account or upload needed
Frequently Asked Questions
4 questions answered
Ready to get started?
Free, instant — your files stay on your device. Always.
Sign a PDF Free — No Account