Navigate to cogwheel (top-right) > This computer
Hover over the data source under Other devices and press the cogwheel
Expand Advanced and press the + sign
Name: pdf_output
Type: Boolean
Value: Enabled
To enable two-sided scanning:
Name: duplex
Type: Boolean
Value: Enabled
To enable automatic feeding from the document scanner:
Name: autofeed
Type: Boolean
Value: Enabled
