Sign PDF
Need to sign a contract, form, or agreement without printing it? FluidConvert lets you draw, type, or upload a signature, drop it anywhere on the page, add a date and text, and download the signed PDF — all 100% in your browser. Your document is never uploaded to any server.
100% private. Your PDF is signed entirely in your browser — it's never uploaded to any server.
Drop your PDF here, or browse
Sign, date, and add text — all in your browser.
Fast & Free
Process files up to 1GB completely free. No account, no limits.
Secure
Files are encrypted and automatically deleted after processing.
High Quality
Optimized algorithms for the best quality-to-size ratio.
About Sign PDF
Sign without printing or scanning
The old way to sign a PDF meant printing it, signing with a pen, scanning it back in, and hoping the file wasn't too big to email. This tool skips all of that: create a signature once, place it exactly where it belongs, and export a clean, flattened PDF in seconds. It handles multi-page documents, so you can initial page after page and sign at the end.
Three ways to make your signature
Draw it with your mouse or finger for the authentic handwritten look, type your name and pick from several cursive fonts, or upload a photo of your real signature — the tool automatically removes the white background so it sits cleanly on the page. Whichever you choose, you can drag it, resize it, and place it as many times as you need.
Completely private — nothing is uploaded
Every step happens locally in your browser using pdf.js and pdf-lib. Your PDF, your signature, and everything you add stay on your device and are never sent to a server. That makes this safe for contracts, NDAs, offer letters, and any document you wouldn't want sitting on someone else's cloud.
Common uses for Sign PDF
- Signing a contract or agreement emailed to you, without printing it
- Initialing every page of a multi-page legal document and signing the last page
- Adding your signature, the date, and your printed name to an offer letter or form
- Signing an NDA or confidential document you'd rather not upload to a cloud service
- Filling and signing a rental application, consent form, or permission slip
Frequently Asked Questions
Is signing a PDF here legally valid?
An electronic signature you add this way is widely accepted for most everyday agreements — contracts, consent forms, offer letters, rental agreements. For documents that require a certified digital signature or notarization (some legal, financial, or government filings), check the specific requirements, as those need a different process.
Does my PDF get uploaded anywhere?
No. The entire process runs in your browser — the PDF is opened, signed, and saved locally on your device. Nothing is ever transmitted to a server, which is why it's safe for confidential documents.
Can I sign a multi-page PDF?
Yes. All pages are rendered in a scrollable view. Drag your signature, date, or text onto any page, and add as many as you need across the document.
What if my PDF is password-protected?
Encrypted PDFs can't be opened for editing. Remove the password in your PDF reader (or your operating system's print-to-PDF) first, then upload the unprotected copy and sign it here.
Can I upload a photo of my handwritten signature?
Yes. Use the Upload tab to add a PNG or JPG of your signature. The tool automatically turns the white background transparent so only the ink shows on your document.