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加密PDF

为机密PDF文档设置高强度开启密码，防止未授权人员查看或篡改。

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加密PDF

采用标准算法在本地对PDF施加密码保护。密码不会在网络上传播，确保只有被授权人才能打开文档。

🔐 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

What happens if I forget the password?
The PDF cannot be opened without it, and DCPIXEL has no way to recover or reset it since we never see the password or the file.
Can I restrict printing or copying separately from the password?
Yes. Even with the correct password, you can disable printing and/or copying permissions when protecting the file.
Is the encryption strong enough for sensitive documents?
This uses standard PDF encryption, suitable for everyday privacy needs like sharing personal or business documents. For highly sensitive/regulated data, consult your organization's security requirements.
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