Fujitsu Scan Snap S1300i Operator's Manual page 264

Change the settings in the following procedure to automatically set keywords for PDF files.
1.
Select [Scan Button Settings] from the Right-Click Menu.
For details about the Right-Click Menu, refer to
The ScanSnap setup dialog box appears.
2.
In the [File format] drop-down list in the [File option] tab, select [PDF
(*.pdf)].
HINT
It is recommended that you select [Better] or [Best] for [Image quality] in the [Scanning] tab of the
ScanSnap setup dialog box.
Using the ScanSnap in Various Ways (for Windows Users)
264
"Right-Click Menu" (page 71).