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About Sign PDF
Sign PDF — free, private, browser-based pdf tool
Draw or type your signature and place it on any page — then download the signed PDF. It takes PDF and gives you PDF. It runs in your browser, so the file is processed on your own device.
Why use Sign PDF
- ·Files stay on your device — nothing is uploaded
- ·No signup needed
- ·Works in any modern browser, on any OS
- ·Free daily use; Pro removes limits and watermarks
How to use it
- 1Drop a PDF file on the page, or click to choose one.
- 2Pick the options you want.
- 3Download the PDF file.
What Sign PDF does
Draw or type your signature and place it on any page — then download the signed PDF. The result is a PDF file you download directly.
How it works
pdf-lib and pdfjs-dist render and edit the PDF stream directly in your browser. Tesseract.js handles OCR with on-device language packs. The processing code runs inside the page, so your file is not uploaded to a server — you can confirm this in your browser's DevTools → Network tab.
Frequently asked questions
Does Sign PDF upload my files?+
No. Sign PDF runs in your browser and processes the file on your device. Nothing is sent to our servers.
Is Sign PDF free?+
Yes, with a daily free allowance and no signup. Xonvert Pro ($4.99/month) removes the daily limits and the watermark on exported files.
Do I need to install anything?+
No. It works in any modern browser on Windows, macOS, Linux, ChromeOS, Android and iPad.
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PDF Info
See title, author, page count, creation date — all metadata at a glance.
Add Page Numbers
Stamp page numbers anywhere on every page — your format, your spot.
Add Watermark
Add a translucent text watermark across every page — DRAFT, CONFIDENTIAL, anything.