Sign PDF
Add your signature to PDF documents
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The tool loads in your browser — your files stay on your device.
Files are processed locally and never uploaded.
How to Sign PDF
Upload
Select or drag your file into the tool above.
Adjust
Choose the options you need for the job.
Download
Process runs instantly and your file downloads.
About Sign PDF
Sign your PDF documents digitally with three flexible methods: draw your signature freehand on a canvas, type your name in a signature font, or scan your handwritten signature using your camera. Position your signature precisely on any page with click-to-place functionality. Choose from multiple colors and stroke widths for a personalized touch.
Frequently asked questions
Yes. Sign PDF is 100% free with no hidden costs, no watermarks, and no daily limits. You can use it as many times as you like without creating an account.
Absolutely. Sign PDF processes your files directly in your browser — they are never uploaded to a server. Your documents never leave your device, which makes the tool completely private and secure.
No. Sign PDF works instantly in any modern web browser on Windows, macOS, Linux, Android, and iOS. There is nothing to install and no registration required.
Electronic signatures are widely accepted for most business and personal documents. Sign PDF lets you draw, type, or upload a signature and place it anywhere on the page.