How to Sign a PDF on Windows
Windows has no built-in PDF signing, but you don't need to install Acrobat to get it done.
Open the Sign PDF toolA browser-based signer works on any Windows 10 or 11 PC with no download, no admin rights, and no software to keep updated.
Open your PDF below, add your signature, and save the signed file to your computer.
Steps to Sign a PDF on Windows
Open your PDF
Load the document you need to sign — a contract, form, or letter.
Create your signature
Draw it, type it, or add your initials, then drag it to the right spot on the page.
Download the signed PDF
Save a finished, signed copy ready to send back.
No printing or scanning
Sign on screen and skip the print-sign-scan loop entirely.
100% private
Everything happens in your browser. Your files are never uploaded to a server, so nothing is stored, shared, or seen by anyone but you.
Free, no sign-up
No account, no watermark, and no install. Use it as many times as you need, completely free.
Ready to start?
Sign PDF runs free in your browser — your files never leave your device.
Open Sign PDFFrequently asked questions
Can I sign a PDF in Microsoft Edge?+
Edge can add basic ink, but for a placed, resizable signature on the exact spot you want, use the tool below — it works in Edge, Chrome, or any browser.
Is an electronic signature legally valid?+
In most countries, electronic signatures are legally binding for the vast majority of everyday documents. Check local rules for special cases like wills or notarized deeds.
Do I need an Adobe account?+
No. This works entirely in your browser with no Adobe software or subscription.