解锁PDF
移除PDF的密码保护
Drop your PDF file here
or click to browse
浏览器处理
文件在您的浏览器中本地处理
自动删除
处理后文件自动删除
无需注册
无需创建账户即可使用所有工具
随处可用
任何设备、任何浏览器，无需安装
如何解锁PDF
上传PDF
选择或将您受保护的PDF拖放到上传区域。
输入密码
输入当前密码以解锁文档。
移除保护
点击解锁以移除密码保护。
下载
下载解锁后的PDF文件。
Why Unlock PDF Restrictions?
PDF restrictions can prevent legitimate use of documents you own or have permission to use. Unlocking removes these barriers so you can print, copy, or edit as needed.
Common Restriction Issues
- Can't Print: The document opens but printing is disabled.
- Can't Copy Text: Selecting and copying text is blocked.
- Can't Edit: Form filling or annotation is restricted.
- Can't Extract Pages: Splitting or reorganizing is disabled.
What This Tool Does
This tool removes owner-level restrictions (permissions) from PDFs. It cannot bypass user passwords that prevent the PDF from opening. If you can view the PDF but can't perform certain actions, this tool can help.
常见问题
What restrictions can this tool remove?
This tool removes printing restrictions, copy/paste restrictions, editing restrictions, and annotation restrictions from PDFs.
Can this tool crack PDF passwords?
No. This tool removes owner permission restrictions but cannot open PDFs that require a user password to view. You must know the open password.
Is unlocking PDFs online safe?
Yes, your files are processed securely in your browser and are never uploaded to external servers. Your documents remain completely private.
Is this PDF unlock tool free?
Yes, our PDF unlock tool is completely free with no registration, watermarks, or hidden fees.
Why can't I print or copy from my PDF?
The PDF creator set owner restrictions to prevent these actions. Our tool can remove these restrictions if you have legitimate access to the document.
What's the difference between user password and owner password?
User password locks the PDF from being opened at all. Owner password restricts actions like printing and copying. We can remove owner restrictions but not user passwords.
Is it legal to unlock a PDF?
Unlocking PDFs you own or have permission to modify is legal. Removing restrictions to circumvent copyright protection or access unauthorized content may violate laws.
My PDF asks for a password to open - can you help?
If the PDF requires a password to open (user password), you must enter that password. Our tool cannot bypass this security. If you've forgotten the password, contact the document creator.
Will unlocking affect the PDF content?
No, unlocking only removes restrictions. All content, formatting, images, and quality remain exactly the same.
Can I unlock a PDF on my phone?
Yes, our tool works on any device with a web browser including iPhones, Android phones, and tablets. No app download required.