I am very disappointed because the specified scan resolution (4800 dpi) is not reached with the included software, but only 600 dpi. Also in the manual only a maximum resolution of 600 dpi is mentioned. After internet research I was able to increase the resolution in ScanGear with a trick to 1200 dpi, but that it can not well be. This has not been recognized by me as a buyer in advance, which is why I feel lied to me. The only positive: the scanner is in low resolution, really fast, which is why I have not sent him back. For mass document-scanning satisfies the.