Sign PDF on Windows
Sign PDF on Windows without installing desktop software — ContinuePDF runs in Edge, Chrome, or Firefox on any Windows 10 or 11 PC. Skip the Adobe download and the "trial expired" prompts and sign your PDF straight from your browser. Because it needs no installation, it works even on locked-down work or school computers where you can't install programs.
Start Sign PDF NowHow to Sign PDF on Windows
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Open the tool in your browser
On your Windows PC, open Sign PDF in Edge, Chrome, or Firefox. No install, no admin rights.
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Add your PDF from File Explorer
Drag files from a File Explorer window onto the page, or click to browse your PC.
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Download the result
Process the file and signed PDF saves to your Downloads folder.
What you can do with Sign PDF
Signing adds your actual signature to a PDF — drawn, typed, or uploaded as an image — and places it exactly where the document needs to be signed, so you can return it without printing.
Sign a contract fast
Add your signature to an agreement and send it back the same day, with no scanner or printer needed.
Handle forms remotely
Sign school, medical, or HR forms from home and email the signed copy straight back.
Initial every page
Place your initials on each page of a multi-page contract where that is required.
Reuse a saved signature
Sign recurring paperwork with a consistent, professional-looking signature every time.
Sign PDF on Windows without extra software
Windows doesn't include a built-in tool to sign PDFs, so people usually reach for Adobe Acrobat or one of many downloadable utilities — which means installers, licenses, update nags, and sometimes bundled extras you didn't want. On a managed work or school PC you often can't install anything at all.
ContinuePDF sidesteps all of that. It runs in the browser that ships with Windows (Edge) as well as Chrome and Firefox, with nothing to install and no admin password required. Drag your PDF in from File Explorer, sign it, and download signed PDF — and because it is all local, your documents never leave the PC.
Why choose ContinuePDF
No installer
Runs in Edge, Chrome, or Firefox — no download, no admin rights.
Works on locked PCs
Ideal for work or school computers where you can't install software.
File Explorer drag-drop
Drop files straight from a File Explorer window.
Stays on your PC
Files are processed locally and never uploaded.
Pro tip
Draw your signature slowly on a trackpad or touchscreen for a cleaner line, or upload a photo of your ink signature on white paper for the most authentic look. Size it to match the signature line rather than dropping it in oversized.
Frequently asked questions
Is a signature added this way legally valid?
In many places an electronic signature is acceptable for everyday agreements, but requirements vary by country and document type. For high-stakes legal documents, check what your jurisdiction or the other party requires.
Can I place the signature exactly where I want it?
Yes. You position and resize the signature freely, so you can drop it precisely on the signature line and add a date next to it if needed.
How do I sign a PDF on Windows?
Open Sign PDF in Edge, Chrome, or Firefox on your Windows PC, drag your PDF in from File Explorer, run the tool, and signed PDF saves to your Downloads folder. No installation needed.
Can I use this on a work computer that blocks installs?
Yes. Because Sign PDF runs entirely in the browser with no installation, it works on managed Windows PCs where you don't have permission to install software.
Is ContinuePDF free to use?
Yes. ContinuePDF and all of its tools, including Sign PDF, are free with no signup required. Because documents are processed in your browser rather than on our servers, we can offer the full feature set at no cost.
Other ways to Sign PDF
Prefer a different device, browser, or setup? Sign PDF works the same everywhere.
Ready to Sign PDF?
Start using our free sign tool now — no signup required.
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