DCPIXEL
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PDFパスワード保護

PDFファイルに強力なパスワードを設定して暗号化。大切な書類の不正閲覧や情報漏洩を確実に防止。

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PDFパスワード保護

送信前の重要資料にパスワードロックを適用。ローカル暗号化のため、パスワードや書類データが第三者に渡る心配はありません。

🔐 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.

よくある質問 (FAQ)

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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