Draw, type, or upload your signature and place it anywhere on the PDF. Fully private — nothing leaves your browser.
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Drop your PDF here to sign
or
✓ No uploads — browser only✓ Free forever✓ Draw, type or upload sig
How to Sign a PDF Online — Free
Adding your signature to a PDF takes seconds with Doclair. Here's how:
1
Open the tool and drop your PDF into the upload area above.
2
Click Add Signature — draw with your mouse or stylus, type your name, or upload a signature image.
3
Click on the page to place your signature. Drag to reposition it anywhere you like.
4
Click Download Signed PDF to save your document. No watermark, no upload.
Is it safe to sign confidential PDFs online?
Completely safe. Doclair processes everything in your browser using JavaScript — your PDF is never uploaded to any server. Legal contracts, medical forms, and business documents stay 100% on your device.
Sign PDF on iPhone and Android
Doclair works in mobile Safari and Chrome. Touch support lets you draw your signature directly with your finger or stylus and tap the page to place it — no app download required.
Frequently Asked Questions
Never. Doclair signs PDFs entirely in your browser. Your document is never transmitted to any server.
Yes. Switch to Draw mode in the signature panel and draw directly on the canvas using your mouse, trackpad, or stylus.
Navigate to the desired page using the page controls, then click the "Add Signature" button and click anywhere on the page to place it.
Yes. Drag the amber handle in the bottom-right corner of your placed signature to resize it proportionally.
Yes. Doclair works in mobile Safari and Chrome. Touch works for drawing signatures and placing them on the page.
Never. Doclair adds zero watermarks to any output. The signed PDF downloads exactly as-is.