Sign PDF — Draw Your Signature
Draw your signature with your mouse or finger and place it on any page — completely private, no upload, no account.
- 1Upload your PDF file
- 2Draw your signature in the signature box
- 3Choose the page and position, then download the signed PDF
Sign PDF
Upload a PDF file to get started — everything runs privately in your browser.
Drag & drop your PDF here
or click to browse from your computer
Why use pdflu for this?
pdflu lets you sign PDFs without uploading them anywhere — unlike most e-sign services that send your contracts and agreements to their servers. Your signature and document stay entirely on your device.
Draw your signature naturally with a mouse, trackpad, or your finger on touch screens. Place it on any page in any corner, adjust the size, and download the signed document in seconds. No account, no watermark, no per-document fees.
Tips for best results
- On mobile, use your finger to draw — signatures usually come out more naturally than with a mouse
- Sign slowly for a smoother line; you can clear and redraw as many times as needed
- Use the size slider to match the signature to the document's signature line
- The signature is placed on top of existing content, so position it over the signature line
- This adds a visual signature image — it is not a cryptographic digital certificate signature
Frequently Asked Questions
Is this a legally binding electronic signature?
A drawn signature image can be legally valid for many everyday agreements, depending on your jurisdiction and document type. However this is a visual signature, not a cryptographic digital certificate. For high-stakes contracts requiring certified digital signatures, use a dedicated e-sign service.
Can I sign on my phone with my finger?
Yes. The signature pad fully supports touch input, and finger-drawn signatures usually look more natural than mouse-drawn ones.
Can I place the signature on multiple pages at once?
Yes — tick the "apply to all pages" option to stamp your signature on every page, or leave it unticked to sign only the page you selected.
Is my document safe? Where does my signature go?
Everything — your document and your drawn signature — stays inside your browser. Nothing is uploaded to any server, making this one of the most private ways to sign a PDF.
Can I upload an image of my signature instead of drawing?
Not currently — the tool uses a drawing pad. Support for uploading a signature image is planned for a future update.