TWAIN is an application interface (API) standardization for software that controls scanners and other devices.
If no TWAIN device is installed, there will be no names displayed in the [Sources] list. First, install the driver software for the TWAIN device.
The driver interface for the device selected in the Select Source dialog box appears.
For information on using the driver interface, refer to the help manual for that interface, or contact the manufacturer of the interface.
The imported image will be pasted into the Design Page at its original size.