加密PDF
为PDF文件添加密码保护。添加加密并设置权限。
Clear file handling
Built for real workflows
Progress and feedback
Useful options, not clutter
Upload PDF File
Drag and drop a PDF file here, or click to browse.
Smart workflow
Do more in the same workflow
Build from the job you started: batch compatible files, keep the right output format, then move straight into the next useful step without hunting through the site.
Input
Output
Batch
1 file per run
1 file per run. Use one run when the files share the same task.
Choose a related operation below instead of starting from scratch.
Results stay focused on download, preview and the next useful action.
No fixed file-size limit per configured tool limit.
Natural next steps
Continue with a related tool using the same file workflow.
Smart workflows
Finish the job, not just the file
Use the existing tool graph to continue into useful next steps. Bulk and output-packaging capabilities are surfaced automatically where the underlying tool supports them.
Continue with Decrypt Pdf
Finish the job after Encrypt Pdf with a relevant MAXScanner tool, without creating a duplicate converter page.
- Encrypt Pdf
- Decrypt PdfWorkflow-ready
Best when Encrypt Pdf is only the first step in your workflow.
ContinueContinue with Change Permissions
Finish the job after Encrypt Pdf with a relevant MAXScanner tool, without creating a duplicate converter page.
- Encrypt Pdf
- Change PermissionsWorkflow-ready
Best when Encrypt Pdf is only the first step in your workflow.
ContinueMake the next step easier
Use Encrypt Pdf as part of a complete document workflow: process the file, review the result, then continue into the next useful step instead of returning to a generic tools catalogue.
Clear file-to-result workflow
Useful controls without unnecessary clutter
Mobile-friendly processing experience
Continue directly into related tools
A smoother workflow
- 1Add the file for Encrypt Pdf
- 2Choose only the settings that matter for the destination
- 3Process and review the result
- 4Continue to the next useful tool when the job is not finished
A human tip
The useful version of Encrypt Pdf
A conversion tool is most valuable when it removes the work around the conversion. People usually arrive with a destination in mind—an upload, a submission, an email, a report, a website or another editing step. The page should make that destination obvious, keep the interface focused, and offer a sensible next action when the first operation is only part of the job.
About This Tool
加密PDF为您的PDF文档添加密码保护和加密。设置用户密码以防止打开，设置所有者密码以控制打印和复制等权限。
根据不同的安全需求选择不同的加密级别（128位或256位AES）。
所有加密都在您的浏览器中进行，确保您的密码和文档保持私密。
How to Use
上传PDF文件
拖放您的PDF文件或点击选择。
设置密码
输入用户密码和/或所有者密码。配置权限。
加密并下载
点击加密保护您的PDF并下载。
Use Cases
机密文档
保护敏感的商业文档。
个人文件
保护个人文档如税务申报表。
受控分发
限制收件人对文档的操作。
Frequently Asked Questions
用户密码和所有者密码有什么区别？+
用户密码防止打开；所有者密码控制权限。
使用什么加密？+
提供128位或256位AES加密选项。
可以只设置权限而不设置用户密码吗？+
是的，您可以只设置所有者密码来控制权限。