使用方法
1
Upload your PDF
上传您的PDF文档
2
Set the password
设置安全密码
3
Configure permissions
配置文档权限
4
Download protected PDF
下载受保护的PDF
上传您的PDF文档
设置安全密码
配置文档权限
下载受保护的PDF
为您的 PDF 文档添加密码保护和加密。限制打印、复制和编辑权限。无需安装任何软件，即可使用强 AES 加密保护敏感文档。
The open password is required to view the document. The permission password controls what actions (print, copy, edit) are allowed.
We use AES 256-bit encryption, the same standard used by banks and government agencies.
You can process files one at a time. Each file can have its own unique password and permission settings.