Sign PDF
Draw your signature, pick the page and corner, and stamp it onto your PDF — then download the signed file. Everything runs locally with pdf-lib, so your document never leaves your device.
Drop PDF here or click to upload
Max 50 MB
How to use Sign PDF
Add a handwritten signature to any PDF online. Draw your signature, place it on the page, and download the signed PDF. Free and private — files stay
- Open Sign PDF using the tool above — no sign-up needed
- Enter your data or upload a file (processed entirely in your browser)
- Click the action button and get your result instantly
- Copy to clipboard or download your result
Your data never leaves your device — 100% private processing.
Frequently Asked Questions
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Why use Sign PDF?
- Process files entirely in your browser — nothing is uploaded to any server
- Works on any device: desktop, tablet, or mobile
- No watermarks, no account required, completely free
- Handles multi-page PDFs without file size penalties
Common use cases
- Merge contracts before emailing to a client
- Split a large PDF report into separate deliverables
- Compress PDFs before attaching to email
- Remove a password from a personal PDF document
- Convert scanned images into searchable PDFs
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