Fujitsu scansnap ix500 Operator's Manual page 231

Creating Scanned Images Depending on Intended Use (for Windows Users)
2.
Click the [Option] button in the [Scanning] tab.
The [Scanning mode option] dialog box appears.
3.
Select the [Deskew by text on document] check box.
4.
Click the [OK] button to close all open dialog boxes.
5.
Load a document in the ScanSnap.
For details, refer to
6.
Press the [Scan] button on the ScanSnap to start a scan.
Scanned image is saved with skewed character strings corrected.
"How to Load Documents" (page
231
63).