Black Out Personal Information

Hide your address, ID numbers, and signature before sharing a document.

无需登录文件保持私密

将文件拖放到此处或点击浏览

PDF 无文件大小限制

浏览文件

你的文件永远不会离开你的设备。所有处理都在你的浏览器中本地进行。

Draw black boxes over anything you want hidden. On export, each page is flattened to an image with the boxes burned into the pixels — so the redacted text is physically destroyed, not just covered. Unlike most free tools, the hidden content can't be copied back or recovered. Everything runs in your browser.

personal info tips

🪪

Cover your address, date of birth, SSN, or ID numbers on forms before emailing or uploading them somewhere.

✍️

Redact your signature from a scanned document so it can't be lifted and reused.

🔒

Because the page is flattened to an image, the hidden details can't be recovered from the file.

💻

Everything stays on your device — your personal documents never touch a server.

工作原理

选择文件

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

处理

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

下载

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

为什么选择我们的？

✓完全免费——永远没有隐藏费用

✓无需账号、邮箱或登录

✓文件永远不会离开你的设备

✓绝无文件大小限制

✓所有输出均无水印

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⚖️

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🩺

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📰

Redact Documents to Protect Sources

Permanently hide identifying details before publis

常见问题

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