How to Sign a PDF Online
Add your signature to a PDF without printing or scanning. A quick guide to signing a document in your browser, plus what an electronic signature is.
What signing a PDF means
Signing a PDF adds a visible signature to the page, the digital equivalent of signing with a pen. For most everyday documents, an electronic signature like this is all you need to return a contract, form, or agreement without printing, signing, and scanning it back.
Sign a PDF in your browser
Open the Sign PDF tool, upload your document, then create your signature by drawing it with a mouse or finger, typing your name in a signature font, or uploading an image of your signature. Place it on the page and download the signed PDF. It runs on your device, so the document is not uploaded.
Place and size the signature
Drag the signature to the signature line and resize it so it sits neatly without covering other text. If the document needs a date or initials too, add them the same way. Zoom in to check the placement on the exact line before you download.
Electronic vs digital signatures
An electronic signature is a visible mark that shows intent to sign and is accepted for most agreements. A digital signature is a stronger, cryptographic seal that also proves the file has not changed since signing, used where strict legal or compliance proof is required. For everyday forms and contracts, an electronic signature is usually enough; check the requirement if the document is high-stakes.
Tips for a clean signature
Drawing with a trackpad often looks shaky; typing your name in a signature font or uploading a photo of a real pen signature usually looks better. If you upload a photo, use one on white paper with good light so the background drops away cleanly.
A note on privacy
Because signing runs in your browser, a sensitive contract never leaves your device to be signed on someone else’s server. No account and no watermark, just sign and send.
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