75 lines
2.0 KiB
Markdown
75 lines
2.0 KiB
Markdown
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```ruby title="Ruby"
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require 'kreuzberg'
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result = Kreuzberg.extract_file_sync('document.pdf')
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# Metadata is flat — format-specific fields are at the top level
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metadata = result.metadata
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if metadata['page_count']
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puts "Pages: #{metadata['page_count']}"
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end
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if metadata['title']
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puts "Title: #{metadata['title']}"
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end
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if metadata['authors']
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puts "Authors: #{metadata['authors'].join(', ')}"
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end
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# Access HTML metadata
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html_result = Kreuzberg.extract_file_sync('page.html')
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metadata = html_result.metadata
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if metadata['title']
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puts "Title: #{metadata['title']}"
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end
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if metadata['description']
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puts "Description: #{metadata['description']}"
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end
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# Access keywords as array
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if metadata['keywords']
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puts "Keywords: #{metadata['keywords'].join(', ')}"
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end
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# Access canonical URL (renamed from canonical)
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puts "Canonical URL: #{metadata['canonical_url']}" if metadata['canonical_url']
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# Access Open Graph fields from map
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open_graph = metadata['open_graph'] || {}
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puts "Open Graph Image: #{open_graph['image']}" if open_graph['image']
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puts "Open Graph Title: #{open_graph['title']}" if open_graph['title']
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puts "Open Graph Type: #{open_graph['type']}" if open_graph['type']
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# Access Twitter Card fields from map
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twitter_card = metadata['twitter_card'] || {}
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puts "Twitter Card Type: #{twitter_card['card']}" if twitter_card['card']
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puts "Twitter Creator: #{twitter_card['creator']}" if twitter_card['creator']
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# Access new fields
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puts "Language: #{metadata['language']}" if metadata['language']
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puts "Text Direction: #{metadata['text_direction']}" if metadata['text_direction']
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# Access headers
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if metadata['headers']
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puts "Headers: #{metadata['headers'].map { |h| h['text'] }.join(', ')}"
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end
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# Access links
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if metadata['links']
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metadata['links'].each do |link|
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puts "Link: #{link['href']} (#{link['text']})"
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end
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end
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# Access images
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if metadata['images']
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metadata['images'].each do |image|
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puts "Image: #{image['src']}"
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end
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end
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# Access structured data
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if metadata['structured_data']
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puts "Structured data items: #{metadata['structured_data'].length}"
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end
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```
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