解锁PDF
移除你自己PDF上的密码。
将文件拖到此处
或
支持格式: PDF
移除所有者限制在浏览器中完成；需要密码才能打开的文件会改用你服务器上的 qpdf（如果已安装）。
免费 · 无需注册 · 大多数工具文件不离开您的设备
此工具完全在您的浏览器中运行——文件不会被上传。
使用方法
1
上传
2
设置
3
下载
常见问题
Is 解锁PDF free?
Yes. 解锁PDF is completely free with no sign-up, no watermark and no daily limit. There is no paid tier — every tool on iAdorePDF is free to use as often as you like.
Is 解锁PDF safe and private?
Yes. 解锁PDF runs entirely inside your browser, so your file is never uploaded to any server. Nothing leaves your device, which makes it safe for confidential documents.
Do I need to install any software?
No. 解锁PDF works in any modern browser — Chrome, Safari, Firefox or Edge. There is nothing to download and no account to create.
Does 解锁PDF work on a phone?
Yes. 解锁PDF is built mobile-first and works on iPhone and Android exactly as it does on a computer, straight from the browser.
Which kind of PDF protection can be removed?
This removes owner restrictions that block printing, copying or editing on files you are allowed to use. It cannot break a password you do not know, and you should only unlock documents you own or have permission to modify.
How do I use 解锁PDF?
Open the page, drop your file into the upload box (or tap Select file), choose your options, then press the start button. Your result downloads straight to your device.
Is there a file size limit?
There is no server limit because the work happens on your own device. The practical ceiling is your device memory; files up to about 100 MB are comfortable on most phones and much larger on a computer.