Fujitsu does not list MAC OS drivers for the Scansnap S510 on their English language website (maybe because they have a MAC version of the Scansnap S510, the Scansnap S510M). They do however list the MAC OS drivers for the Scansnap S510 on the Japanese language site, but as you may expect, the program is also in Japanese. The directions that follow are to get the Scansnap S510 working under MAC OS and in English language. 1. Download the Scansnap Manager software for the S510M (ScanSnap_V22L11.dmg, which you can find here http://www.fujitsu.com/global/support/computing/peripheral/scanners/drivers/mac.html) and install 2. Use Finder to locate the Scansnap Manager.app file -> right click or apple click it and select "Show Package Contents" -> double click to open the Contents folder -> double click to open the Resources folder 3. Copy the English.lproj folder to the desktop 4. Open the Applications folder and drag the Scansnap folder to the trash, then empty the trash