Sign PDF — Signature & eSign Tool

Sign PDF files in your browser. Free, no signup. Right-click any PDF link to sign. Files never leave your device.

✍️ Sign PDF in Chrome — Free Forever, No Signup Sign any PDF directly in your browser. No uploads, no accounts, no watermarks. Files stay private on your device. Works with Gmail, Google Drive, Dropbox, Slack, and any website with a PDF link. 🚀 Key features - Sign PDFs in 30 seconds — no software to install - Draw your signature with mouse or trackpad - Type your signature in handwritten style - Upload an existing signature image - Add text and dates anywhere on the document - Right-click any PDF link to start signing instantly - Resize and reposition signatures with one click - Download signed PDFs to your device 🔒 100% Private Your documents never leave your browser. Everything runs locally on your device using JavaScript. No uploads to servers, no cloud storage, no tracking. We can't see what you sign because we don't see anything at all. - No file uploads — ever - No account required - No tracking, no analytics - No watermark on signed PDFs 💼 Perfect for - Freelancers signing client contracts - Real estate agents handling property documents - HR teams processing employment forms - Students signing school agreements - Anyone filling out tax forms, NDAs, or applications 📍 Works everywhere PDFs live - Gmail — right-click any PDF attachment to sign - Google Drive — sign documents from cloud storage - Dropbox — sign shared PDF files - Slack — sign PDF attachments in messages - Any website with a PDF link ⚡ How to use Sign PDF 1. Click "Add to Chrome" to install — it takes one second 2. Open any PDF in your browser, in email, or on any website 3. Click the Sign PDF icon or right-click any PDF link 4. Draw, type, or upload your signature 5. Add text fields and dates if you need to fill out a form 6. Download your signed PDF instantly 🌐 Legally valid signatures Electronic signatures are legally binding in the US (ESIGN Act), EU (eIDAS), UK, Canada, Australia, and 100+ countries for most everyday business documents — contracts, NDAs, agreements, real estate papers, school forms, and tax documents. 💯 Why Sign PDF is different ✓ 100% in your browser — files never uploaded ✓ Free forever — no paywalls, no daily limits ✓ No signup — start signing immediately ✓ No watermark on signed documents ✓ One-click Chrome install ✓ Works on Mac, Windows, Linux, and Chromebooks ✓ Open in Adobe Reader, Mac Preview, and any PDF viewer 🆚 Sign PDF vs other PDF signers Other PDF signers upload your files to their servers, require account signup, add watermarks to free plans, and limit how many documents you can sign per day. Sign PDF runs entirely in your browser, requires no account, leaves no watermark, and lets you sign unlimited PDFs — for free, forever. 📚 Frequently asked questions Is Sign PDF really free? Yes. Sign unlimited PDFs, no signup, no credit card, no paywall. We will never charge for the core signing functionality. Are my files safe? Your PDFs never leave your device. Everything runs locally in Chrome using JavaScript. We can't access your files because they're never sent anywhere. Is an electronic signature legally valid? Yes. Electronic signatures are legally binding in the US, EU, UK, and 100+ countries for most everyday business documents. Does Sign PDF work on Mac and Windows? Yes. It works on any Chromium-based browser — Chrome, Edge, Brave, Opera, Arc — on any operating system: Mac, Windows, Linux, and ChromeOS. Will signed PDFs open in Adobe Reader? Yes. We use standard PDF specifications, so signed files open correctly in Adobe Reader, Mac Preview, and any other PDF viewer. Can I edit text in the PDF? Yes. Add text and dates anywhere on the document — perfect for filling out forms, tax documents, contracts, and applications. Does this work with Gmail and Google Drive? Yes. Right-click any PDF attachment in Gmail or PDF file in Google Drive to start signing instantly. 🎯 About Sign PDF Sign PDF is part of the SignMyPDF family — a privacy-first suite of free PDF tools. We believe your documents should stay your business. That's why everything runs in your browser, with no uploads, no tracking, and no account required. For more free PDF tools — fill forms, protect with password, merge, compress, or split PDFs — visit signmypdf.io. 📧 Support Questions, suggestions, or bugs? Reach us at support@signmypdf.io. We respond within 24 hours.