FREE TOOL · ON YOUR DEVICE
Sign PDF online free
Add your signature to a contract, a form or a consent letter without printing it. Draw it, type it in handwriting-style lettering or upload a photo of your paper signature, place it on the page and download the signed PDF. Everything happens on your device.
- Free, no watermark
- Draw, type or upload
- Your PDF never leaves your device
- Add your PDF
- Create your signature
- Place it and download
HOW TO USE IT
Three steps.
Add your PDF
Drop or choose a PDF without a password, up to 100 MB.
Create your signature
Draw it in the box, type your name or upload an image (with “remove the white background” for a photo of paper). Choose black or blue.
Place it and download
Tap the page where the signature goes, adjust it and choose this page, the last one or every page. Press “Sign PDF” and download it.
NEXT STEP
Keep going with these tools
Sign PDF: common questions
Is it legally valid?
It is a visual signature: your signature as an image inside the PDF, like signing on paper and scanning it. Many private processes accept it, but it is NOT a qualified or advanced electronic signature with a certificate. If a process requires a certificate-based signature (for example, with a government office), use the official service they point you to.
Can I sign several pages?
Yes: choose “Every page” to put it in the same position on each page, or “The last page” to sign at the end.
Is my signature stored?
No. The signature and the PDF are processed in your browser and are not sent to or stored on any server. They disappear when you close the page.
Are my PDFs uploaded to a server?
No. The tool runs inside your browser: documents are read and processed on your device and are not sent to Cocuyo or to any third party. The PDF libraries are served from our own site, with no external services. You can check it in your browser’s network tools: your file is not sent.
Is it really free?
Yes. You can try it before signing up; to download the result we ask for a free account, with no subscription. Your free account comes with 30 welcome uses; after that, each use costs 1 credit (top-ups from US$1), and they are unlimited with Basic or Pro. It never adds a watermark.
What are the limits?
PDFs without a password, up to 100 MB per file. Pages are processed bit by bit so the tab stays responsive; on a phone, a very large PDF may take a few seconds longer.
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WHEN YOU WANT TO CREATE
Make new images with AI.
Cocuyo’s Studio brings 30+ AI models for image, video and voice together. You see the credit cost before generating, and credits never expire.