Bichon Docs
Pro Edition

The Community edition indexes attachment metadata (filename, file type, size, sender) but does not extract attachment content. The Pro edition registers a text extractor that feeds PDF and Word content into the Tantivy full-text index, so searches match text inside attachments.

What is indexed

  • PDF — text extraction with Latin and CJK (CMap) coverage
  • DOCX — Word document text

Extracted text is indexed alongside the attachment's metadata and is searchable with the same query syntax and filters as message bodies.

Limits

SettingDefaultDescription
BICHON_EXTRACT_FILE_SIZE_LIMIT10 MiBFiles larger than this are skipped
BICHON_EXTRACT_TEXT_LIMIT4 MiBExtracted text longer than this is truncated

Note: Extraction applies to newly ingested attachments. Re-ingest existing archives to index their attachment content after upgrading to Pro.

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