Fscrawler ocr question

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ocr:
    language: "eng"
    enabled: false
    pdf_strategy: "ocr_and_text"
  follow_symlinks: false

If I enable OCR in _settings.yaml, will all files be OCR'd - even those which already contain indexable text - or just those for which there is currently no indexable text ?

Also, does "follow_symlinks" mean that url's will be hyperlinked and made clickable ?

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It will extract both text and images.
This test shows it:

It reads a PDF document which has an image plus some text. Both are extracted.

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