Category Documentation
Security PDF Tools
Tools for password protection, AES encryption, decryption, and setting document permissions.
What Security Tools Do
Security tools protect your sensitive documents with industry-standard encryption algorithms. Add strong user passwords to lock PDFs, remove password protection from authorized files, or configure explicit permissions to restrict printing, copying, editing, or commenting.
Tools in this Category (9)
保护 PDF
Active使用强大的用户密码和所有者密码保护您的 PDF。
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移除 PDF 密码
Active从已授权的 PDF 文件中移除密码保护。
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加密 PDF
Active使用标准 AES 加密对文档内容进行加密。
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解密 PDF
Active使用密码授权解密已加密的 PDF 文档。
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PDF 权限
Active管理打印、复制、编辑和评论权限。
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打印权限
Active允许或阻止 PDF 的高分辨率打印。
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复制权限
Active限制从文档页面复制文本和图像。
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编辑权限
Active锁定文档页面以防止修改或页面提取。
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评论权限
Active控制读者是否可以添加注释或填写表单。
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Common Workflows
- 1Password protect confidential financial statements before sharing.
- 2Unlock password-protected files when authorized.
- 3Restrict text copying and printing rights on distributed PDF materials.
- 4Encrypt PDF documents using standard AES encryption.
Related Tool Categories
Open Source Project
KissThePDF is 100% Free & Open Source
All code runs locally in your browser. Contribute code, report bugs, add new tools, or star the repository to support privacy-first software.