Until now, we have been extracted a few number of fields from the binary files sent to the ingest attachment plugin:

• content,
• title,
• author,
• keywords,
• date,
• content_type,
• content_length,
• language.

Tika has a list of more standard properties which can be extracted:

• modified,
• format,
• identifier,
• contributor,
• coverage,
• modifier,
• creator_tool,
• publisher,
• relation,
• rights,
• source,
• type,
• description,
• print_date,
• metadata_date,
• latitude,
• longitude,
• altitude,
• rating,
• comments

This commit exposes those new fields.

Related to #22339.

Co-authored-by: Keith Massey keith.massey@elastic.co

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