Scanner resolution

Scanner resolution defines how detailed the images coming from your scanner must be.

• Higher resolutions mean
  • longer scans,
  • longer OCR,
  • more time to display,
  • more space used on disk,
  • but also better OCR.
• Lower resolutions mean
  • shorter scans,
  • shorter OCR,
  • less time to display,
  • less space used on disk,
  • but also inferior OCR,
  • and possibly unreadable image (even by a human).

300 dpi is considered a good trade-off. You may want to reduce it to 200 dpi on slow computers.