How to Sign a PDF Online
Signing a PDF online means no software to install and nothing to keep updated — it just works in your browser.
Open the Sign PDF toolWhether you're on a laptop, tablet, or phone, an online signer lets you add your signature and download a finished copy from wherever you are.
Open your PDF below, sign it, and save the signed file.
Steps to Sign a PDF Online
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
Does signing online upload my document?+
No — this tool processes the PDF in your browser, so your document is signed locally and never uploaded to a server.
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.