Sign PDF Documents Online
Add your signature to PDF documents quickly and securely. Sign PDFs online without installing software or registering an account.
Select PDF Document
Drag and drop your PDF file here, or click to browse from your device.
How to Sign a PDF Online
Signing documents electronically is fast, private, and requires no complicated software.
Upload Document
Select or drag and drop any PDF document from your computer, tablet, or mobile phone. Your file loads instantly in your browser.
Create & Place Signature
Draw your signature with your mouse or finger, type your name using elegant cursive fonts, or upload a signature image. Position it anywhere on the page.
Download Signed PDF
Click "Download Signed PDF" to export your finalized document. The signature is permanently embedded into the PDF file.
3 Ways to Add Your Signature
Choose the signature style that fits your workflow best.
Draw Your Signature
Use your mouse, trackpad, touchscreen, or stylus to write your natural handwritten signature with realistic ink smoothing.
Type Your Signature
Type your name and select from multiple professional handwriting and calligraphic fonts. Customize ink color to black or blue.
Upload Signature Image
Upload an existing photo or scan of your signature (PNG or JPG). Our tool automatically removes white paper backgrounds.
Why Sign PDF Documents Electronically?
Signing documents electronically eliminates the time-consuming cycle of printing out paper sheets, signing them with a pen, scanning them back into a computer, and emailing them. With SignPdfDoc, you can complete the entire signature process in under 60 seconds directly from your web browser.
Key Benefits of Browser-Based PDF Signing
- Time-Saving: Sign contracts, lease agreements, invoices, tax forms, and permission slips instantly.
- Eco-Friendly: Eliminate paper waste, ink cartridges, and physical printing.
- Cross-Platform Compatibility: Works seamlessly on Windows, macOS, Linux, iOS (iPhone/iPad), and Android devices without requiring Adobe Acrobat.
- High-Fidelity Output: Placed signatures are embedded cleanly into the PDF vector and raster layers, ensuring crisp rendering when viewed or printed.
Note on Electronic Signatures: Electronic signatures created with SignPdfDoc are commonly accepted for business agreements, NDAs, rental applications, work orders, and everyday correspondence across most global jurisdictions including the US ESIGN Act and European eIDAS regulation.
Supported Document Types
SignPdfDoc works with any standard PDF file, including:
- Business contracts and service level agreements (SLAs)
- Employment offers and onboarding documentation
- Real estate leases and tenancy agreements
- Freelance proposals and client invoices
- School permission forms and medical release records
Common Questions About PDF Signing
Everything you need to know about signing PDF documents online with SignPdfDoc.
How do I sign a PDF online?
To sign a PDF online, simply drag and drop your document into the SignPdfDoc upload area. Click "Add Signature", choose whether to draw, type, or upload your signature, and place it anywhere on your PDF. When you are finished, click "Download Signed PDF" to save your signed file.
Is SignPdfDoc completely free to use?
Yes. SignPdfDoc is 100% free to use. There are no hidden fees, subscriptions, or credit card requirements.
Is my uploaded document private and secure?
Yes. SignPdfDoc operates entirely in your browser using modern client-side JavaScript. Your PDF file is processed locally on your device and is never uploaded or saved to remote web servers.
Can I sign a PDF on my phone or tablet?
Yes. SignPdfDoc works on any modern mobile browser (Safari on iPhone/iPad, Chrome on Android). You can draw your signature naturally with your finger or a stylus.
Can I add a date to my document?
Yes. Click the "Add Date" button on the toolbar to insert today's date stamp onto your document, and move or resize it to fit the date line.
Do I need to create an account or log in?
No registration or account is required. You can immediately sign your documents whenever you visit the website.