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Use AI without leaking private information.
Redact private information in your files completely offline.
Then, use the scrubbed files without violating your firm's privacy policies on ChatGPT, Perplexity or DeepSeek.

The A5 PII Anonymizer (PA) is an open-source desktop tool that lets you anonymize PDF, Word, or Excel data entirely offline with a built-in LLM trained for PII redaction. It replaces sensitive text with placeholders like FIRST_NAME_1 or LOCATION_CITY_3, while preserving a hidden mapping for secure re-identification later.

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How to Use the A5 PII Anonymizer