Add Watermark to PDF Online Free
Stamp any PDF with a text, logo or signature watermark in seconds. Apply it to every page at once, pick the position, size and opacity, or tile the watermark across the whole page. 100% local — your file never leaves your device. No account, no limits.
How to Sign a PDF
1. Upload your PDF
Drop a contract, permission slip, consent form or any PDF. It is rendered and processed entirely on your device — nothing is uploaded to any server.
2. Create your signature
Draw it by hand, type your name, or use today's date. Switch color and thickness freely. Your last signature is remembered so you can reuse it on future documents without creating an account.
3. Place it and download
Click any page to place the signature, then drag to position it perfectly. Add as many signatures and dates as you need, then click Sign & Download. Your signature is burned into the page, so it stays visible in any reader — no sign-up, no watermark, no limits.
Frequently Asked Questions
Can I sign a PDF without creating an account?
Yes — there is no account, no sign-up and no limit. Most online signers force you to register or pay after a couple of free signatures. Here you can sign as many documents as you like, completely free.
Why did my signature disappear when I reopened a PDF?
Many tools save your signature as a floating annotation layer that some PDF readers ignore or hide. This tool bakes your signature directly into the page content, so it stays visible in every reader, on every device, and cannot be accidentally hidden or dragged away.
Can I sign a document with my typed name instead of drawing?
Yes. Switch to “Type”, enter your name, and it becomes a signature image in a handwriting style. You can then place it on any page just like a drawn signature.
Is it safe to sign a PDF online?
Yes. Everything runs in your browser and your file never leaves your device — you can even go offline after the page loads. Sensitive documents such as contracts, consent forms and tax papers stay completely private.
Can I remove a signature I placed by mistake?
Yes. Hover over a placed signature and click the red X that appears to delete it, then place it again if needed. Nothing is final until you click Sign & Download.