How to use Sign PDF online for free — the complete 2026 guide
Modern contracts don't need a printer, pen and scanner. Sign PDF lets you draw your signature with a mouse or touchscreen and drop it exactly where the signature line lives.
Ready to try it?
Open the Sign PDF tool and follow along.
What Sign PDF does
Sign PDFs in the visual editor, or quickly stamp a drawn signature at a page corner without opening the full workspace.
Modern contracts don't need a printer, pen and scanner. Sign PDF lets you draw your signature with a mouse or touchscreen and drop it exactly where the signature line lives.
How to use Sign PDF — step by step
Follow these steps to use the Sign PDF tool on WordToPDFHub. The whole flow takes less than a minute for typical documents.
- 1Upload the PDF to the Sign PDF tool.
- 2Draw your signature in the canvas — or type your name in a signature font.
- 3Place the signature on the correct page, resize it, and download the signed PDF.
Pro tips
A few habits that get the best results out of Sign PDF:
- Signing on a tablet with a stylus produces the most natural signature.
- You can add initials on multiple pages by repeating the drop.
- The result is a standard PDF — no proprietary e-signature format required.
Common use cases
Users reach for Sign PDF in a range of scenarios. The most common:
- Signing a freelance contract from your phone.
- Approving an NDA without printing.
- Adding initials to every page of a legal document.
Why use WordToPDFHub for sign pdf
Most online PDF tools force you to upload files to a remote server, wait in a queue, and accept a watermarked result. WordToPDFHub takes the opposite approach: everything happens in your browser, results are instant, and the output is clean.
- 100% browser-based — no uploads, no accounts, no watermarks.
- Works on Windows, macOS, Linux, iOS, Android and Chromebook.
- Handles multi-page documents at desktop speed.
- Free forever for individual users.
Privacy and security
Sign PDF runs entirely in your browser. Your PDF is loaded into memory, processed with WebAssembly, and the result is offered as a direct download. Nothing is uploaded, cached on a server, or logged.
Because the work is local, you can safely use it on contracts, invoices, medical records and other confidential documents without violating internal data-handling policies.
Frequently asked questions
- Is my file uploaded to a server?
- No. Every WordToPDFHub tool runs inside your browser using WebAssembly, so your document never leaves your device.
- Is the tool really free?
- Yes — every core tool on WordToPDFHub is free to use with no watermarks, no sign-up, and no file-size paywall for typical documents.
- Does Sign PDF work on mobile?
- Yes. Sign PDF runs in any modern mobile browser — Safari on iOS, Chrome on Android, and the built-in browsers on iPad and Android tablets.
- Are there file-size limits?
- The tool is limited only by your device's memory. Typical documents up to a few hundred megabytes process comfortably on a modern laptop or phone.
Try Sign PDF now
Free, browser-based, no sign-up.
Open the tool