Text recognition rate decreases depending on the scanned document.

Text recognition may not work correctly when the following type of the documents are scanned.

• Documents containing handwritten characters.
• Documents containing small letters which are scanned with low resolution.
• Documents with skewed content.
• Documents which are not written in a supported recognition language.
• Documents which are written in italic characters.
• Documents that include a top/bottom index and complex mathematical formulas.
  • Document with an uneven colored background or patterns.
    Characters with shadow and outlined characters
  • Shaded character
• Documents with complex layout and background noise.
  (It may take longer to recognize this kind of document.)