Sign PDF Online (Free)
Draw your signature or upload a stamp to place directly onto any page of your PDF document 100% free with complete privacy.
完全免费 · 无需注册
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100% 客户端就地计算
在浏览器内存中运行，文件永不外传至远程服务器。
零服务器留存
无云端存储或日志记录。关闭标签页后数据即刻彻底销毁。
完全免费 · 无需注册
无隐藏收费、无订阅门槛、无强制水印。打开即用。
毫秒级超快响应
基于 WebAssembly 与现代边缘技术，告别排队等待。
使用方法步骤 - Sign PDF Online (Free)
1
Upload your PDF document.
2
Draw your signature in the signature box.
3
Select the target page and click Apply Signature to download.
常见问题解答 (FAQ)
Sign PDF Online (Free)
Q:Is my document uploaded to a server?
No, everything runs 100% locally inside your browser using HTML5 Canvas and WebAssembly.