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Sign a PDF Online — Free
Sign any PDF or document online in seconds — draw your signature or upload an image, drag it onto the page, resize it, and download the signed file. Everything happens in your browser, so your document is never uploaded.
Open the tool — free → 🔒 Nothing uploaded · runs in your browserHow it works
- Open the tool and drop in your PDF.
- Draw your signature, or upload a photo of it.
- Drag the signature onto the right spot and resize it.
- Download your signed PDF — done.
Why use Ajenza
- 100% private — the document never leaves your device.
- Free with no sign-up, watermark or page limit.
- Draw with your finger on mobile, or a mouse on desktop.
- Works on phone, tablet and computer.
Frequently asked questions
How do I sign a PDF online for free?
Open Ajenza PDF, drop in your PDF, draw or upload your signature, place it on the page and download. It's free and runs in your browser.
Is it safe to sign my document here?
Yes — signing happens entirely in your browser with pdf-lib and pdf.js. Your document is never uploaded to any server.
Can I sign a PDF on my phone?
Yes. Draw your signature with your finger and place it on the page, right from your phone's browser.
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