从 PDF 中移除密码
输入当前密码即可移除并解锁文件。
工作原理
1. 上传受保护的 PDF。2. 输入其当前密码。3. 下载——密码保护已被移除。
我需要知道当前密码吗？
是的——这只会移除你已经能打开的文件的保护，不会破解或绕过你不知道的密码。
我的密码会被发送到别处吗？
不会——一切都完全在你的浏览器中完成。你的文件和密码永远不会离开你的设备。
如果我输入了错误的密码怎么办？
你会看到一条错误提示，文件不会有任何改变——请仔细核对密码后重试。
Does this work on a mobile browser?
Yes — it's a regular web page, not an app you install, so it works the same way in a mobile browser as on desktop. Tap to browse for the file using your phone's file picker (or the app you're sharing the PDF from), type the password, and download the unlocked file — everything still happens on your device, nothing is uploaded.
I forgot my password — can you crack or recover it for me?
No. This tool removes protection when you already know the password — it doesn't guess, crack, or brute-force anything. Modern PDF encryption is built to make that impractically slow, so there's no shortcut here. If you've genuinely lost the password, try the person or system that sent you the file, or your own password manager, rather than a tool promising to recover it.