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)
Protect PDF
RoadmapPassword protect your PDF with strong user and owner passwords.
Remove PDF Password
RoadmapRemove password protection from authorized PDF files.
Encrypt PDF
RoadmapEncrypt document contents using standard AES encryption.
Decrypt PDF
RoadmapDecrypt encrypted PDF documents with password authorization.
PDF Permissions
RoadmapManage printing, copying, editing, and comment permissions.
Printing Permissions
RoadmapAllow or prevent high-resolution printing of your PDF.
Copy Permissions
RoadmapRestrict text and image copying from document pages.
Editing Permissions
RoadmapLock document pages to prevent modification or page extraction.
Comment Permissions
RoadmapControl whether readers can add annotations or fill forms.
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
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.