Sign PDF
Sign PDF documents online or request digital signatures from others
How It Works
Signing PDF files with pdfLaunch is quick and secure. Our online tool lets you add digital signatures in three simple steps:
Upload PDF file
Select your PDF document from your device or drag and drop it into the upload area. Our tool supports all standard PDF files.
Add your signature
Create your signature by drawing it, typing your name, or uploading an image of your signature. Place it anywhere on the PDF.
Download signed PDF
Download your signed PDF file. The signature is permanently embedded in the document, making it ready for official use.
No software installation or registration required. The entire process happens in your web browser, making it accessible from any device with an internet connection. Need to protect your PDF? Try our Protect PDF tool. Want to merge PDFs? Use our Merge PDF tool.
Use Cases
Our PDF signer is perfect for a wide range of professional and personal tasks:
After signing, you can also protect your PDF using our Protect PDF tool, or merge it with other PDFs using our Merge PDF tool if needed.
Security & Privacy
Your privacy and data security are our top priorities
- Secure HTTPS upload: All file transfers are encrypted using HTTPS protocol, ensuring your documents are protected during upload and processing.
- Automatic processing: Files are processed automatically by our secure servers. No human access to your documents is required or permitted.
- Automatic deletion: All uploaded files are automatically deleted from our servers within 1 hour after processing. We do not store, archive, or share your documents.
- No registration required: You can use our PDF signer without creating an account or providing personal information.
- Client-side processing: Where possible, file operations are performed in your browser to minimize server-side data handling.
Device & Platform Compatibility
Our PDF signer works seamlessly across all devices and operating systems:
Desktop computers
Works on Windows, macOS, and Linux systems. Compatible with all major web browsers including Chrome, Firefox, Safari, and Edge.
Mobile devices
Fully functional on iPhone and Android smartphones. The responsive interface adapts to your screen size for optimal mobile use.
Tablets
Optimized for iPad and Android tablets, providing a smooth signing experience on larger touch screens.
No installation required
Since it's a web-based tool, you don't need to download or install any software. Simply open the tool in your browser and start signing.
Whether you're at home, in the office, or on the go, pdfLaunch's PDF signer is always accessible and ready to use.
Frequently Asked Questions
Is signing PDFs free?
Yes, signing PDF files with pdfLaunch is completely free. There are no hidden fees, subscription requirements, or usage limits. You can sign as many PDFs as you need without any cost.
How can I add my signature?
You can add your signature in three ways: draw it with your mouse or finger, type your name to create a typed signature, or upload an image of your signature.
Is the signature legally valid?
Digital signatures added with our tool are visual signatures embedded in the PDF. For legally binding electronic signatures, you may need specialized e-signature services with certificate-based authentication.
Does it work on mobile?
Yes, our PDF signer is fully functional on mobile devices. It works on both iPhone and Android smartphones, with a responsive design that adapts to your screen size. You can sign PDFs directly from your mobile browser without any app installation.
What happens to my files?
Your files are processed securely and automatically deleted from our servers within 1 hour after processing. We do not store, archive, or share your documents. All file transfers are encrypted using HTTPS, and no human access to your files is required or permitted.
What is the maximum file size I can sign?
You can sign PDF files up to 100 MB in size. This is sufficient for most PDF documents including large contracts, reports, and documents with images.
Do I need to create an account?
No, you don't need to create an account or provide any personal information to use our PDF signer. Simply upload your PDF and start signing immediately.