How to Sign a PDF Online

Quick answer: Sign a PDF in your browser: draw, type, or upload a signature image and place it on the page. Open PDF 签名 — everything runs locally in your browser, and files never leave your device.

Steps

1. Upload the PDF to the Sign tool.
2. Create a signature — type your name, draw with mouse or finger, or upload a photo of your signature.
3. Drag the signature to the right spot and resize it.
4. Download the signed PDF.

Important notes

• This produces a visible (wet-ink style) signature, not a certificate-based digital signature — check what your counterparty requires before signing contracts.
• Everything runs locally in the browser, so sensitive documents never leave your device.

Common questions

Is an online signature legally binding? Visible signatures are widely accepted, but legal weight varies by jurisdiction and agreement — for high-stakes deals ask about certified digital signatures.

Can I add a date next to my signature? Yes, add a text stamp with the signing date.