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Max 100 MB · Single file
Why Sign PDF
- Draw your signature in the box, place it on any page.
- Signature is embedded as a PNG into the PDF.
- Stamped at bottom-right; for precise positioning use a full PDF editor.
Common questions
Is Sign PDF free to use?
Yes. Sign PDF is completely free. There is no sign up, no trial, and no usage cap.
Do I need an account to use Sign PDF?
No. You can start using Sign PDF straight away. We do not ask for an email address or a login.
Is my data uploaded to a server when I use Sign PDF?
No. Sign PDF runs entirely inside your browser, so the PDF files you enter never leaves your device and nothing is sent to us.
Do you store the PDF files I use with Sign PDF?
No. Because everything happens locally in your browser, there is nothing for us to store. Close the tab and it is gone.
Are my PDF files kept private?
Your documents are processed for the task at hand and are not stored or shared. Where possible the work happens right in your browser.
Is there a file size limit for Sign PDF?
Very large files may be slower because the work runs on your device, but there is no hard cap for everyday documents.
How do I use Sign PDF?
Enter or paste your PDF files and Sign PDF updates the result as you go. When it looks right, copy or download it with one click.
Does Sign PDF work on phones and tablets?
Yes. Sign PDF is responsive and works in any modern browser on mobile, tablet, and desktop.
Which browsers does Sign PDF support?
It works in current versions of Chrome, Firefox, Safari, and Edge. For the best experience, keep your browser up to date.
Is there a limit on how often I can use Sign PDF?
No. You can use Sign PDF as many times as you need, at no cost.
Can I use Sign PDF for commercial or client work?
Yes. You are free to use the output in personal, educational, and commercial projects.
Why is Sign PDF free?
The site is supported by advertising, which lets us keep every tool free and open to everyone.
What should I do if Sign PDF gives an unexpected result?
First check that your PDF files is formatted as expected. If something still looks wrong, use the feedback link on the page and we will take a look.