Getting Started with the LibreOffice Extension
Install the anonym.legal extension, sign in to your account, and run your first PII anonymization in LibreOffice Writer, Calc, or Impress.
Download & Install the Extension
Download the pre-built .oxt extension file and install it into LibreOffice.
Download anonym-legal-libreoffice-1.0.0.oxtQuick Install (Recommended)
- 1.Click the download button above to get the .oxt file.
- 2.Double-click the downloaded .oxt file.
- 3.LibreOffice opens automatically and prompts you to install.
- 4.Restart LibreOffice when prompted.
Manual Installation
- 1.In LibreOffice, go to Tools → Extension Manager.
- 2.Click Add and select the downloaded .oxt file.
Restart LibreOffice after installation to activate the extension.
Open the Sidebar
After installation, open the anonym.legal sidebar panel.
Go to View → Sidebar, then click the anonym.legal deck icon.
The sidebar panel appears on the right side of your document. You can resize it by dragging the edge.
Sign In to Your Account
Enter your anonym.legal credentials to authenticate.
Enable Zero-Knowledge authentication for maximum security. Your password is never sent to the server — only a cryptographic proof derived with Argon2id (64 MB memory, 3 iterations, parallelism=1).
Don't have an account? Create a free account with 200 free tokens to get started.
Your session lasts 60 minutes. Credentials are cached locally for 7 days for quick re-authentication.
Analyze Your Document
Select the scope and run PII detection on your document.
- Choose scope: entire document or current selection
- 285+ entity types detected automatically
- 48 language support with automatic detection
In Calc, analysis processes cell contents as tab-separated text. In Impress, it processes text from all slide objects.
Choose Your Anonymization Method
Select one of 5 anonymization methods based on your use case.
Replaces PII with typed tokens like <PERSON_1>, <EMAIL_ADDRESS_1>. Consistent within a document.
Replaces characters with asterisks while preserving format. Useful for showing partial data like last 4 digits.
Completely removes PII and replaces with [REDACTED]. Irreversible — the original data cannot be recovered.
Produces a cryptographic hash of the PII. Same input always produces the same hash for cross-document correlation.
Encrypts PII with AES-256-GCM. With the correct key, you can decrypt and restore the original data.
Preview & Apply
Review detected entities in the preview dialog before applying changes.
- Preview dialog shows up to 50 detected entities in a table
- Select or deselect individual entities before applying
- Choose different methods per entity type using per-entity operators
Click Apply to anonymize the document. Use Ctrl+Z (Cmd+Z on macOS) to undo if needed.
Tips & Best Practices
- Always use the preview dialog to review detections before applying. You can deselect false positives.
- Use Ctrl+Z (Cmd+Z on macOS) to undo anonymization immediately after applying.
- Save frequently used configurations as presets for quick reuse across documents.
- Format preservation works in Writer only — bold, italic, underline, font size, font name, color, and highlight are maintained.
- For large documents, process sections at a time using selection mode to maintain accuracy.
- Documents are processed in 8,000-character chunks with 400-character overlap to ensure no entities are missed at boundaries.