```ruby title="Ruby"
require 'kreuzberg'

config = Kreuzberg::ExtractionConfig.new(
  enable_quality_processing: true
)
result = Kreuzberg.extract_file_sync('scanned_document.pdf', config: config)

quality_score = result.quality_score

if quality_score < 0.5
  puts "Warning: Low quality extraction (#{quality_score.round(2)})"
  puts "Consider re-scanning with higher DPI or adjusting OCR settings"
else
  puts "Quality score: #{quality_score.round(2)}"
end
```