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PDF签名

在PDF上自由绘制签名、键入名字或上传印章图样。零服务器传输，完全私密合规。

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PDF签名

无需打印再扫描，直接在浏览器中为合同、授权书添加手写签名。签名与文件均在本地渲染，严防信息泄露。

🔐 100% Private — Client-Side Execution

All processing happens inside your browser using WebAssembly and HTML5 Canvas. Zero file uploads, zero server tracking. Compliant with LGPD & GDPR.

常见问题解答

Is this a legally binding electronic signature?
This creates a visual signature image embedded in the PDF, similar to a scanned wet signature. For legally binding e-signatures with audit trails, use a dedicated e-signature service.
Does my PDF get uploaded to a server to be signed?
No. The PDF is loaded, signed, and saved entirely inside your browser using local processing — nothing is transmitted anywhere.
Can I sign more than one page?
Currently you sign one page per pass. To sign multiple pages, save the signed PDF, then re-upload it and sign another page.
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