Epson Perfection V500 - Manual (Page 161)

To change the scan mode, see Changing the Scan Mode for documents and photos
or Changing the Scan Mode for film and slides.
Click the Preview button to preview your image(s), then select your scan area.
Home or Professional Mode:
See one of these sections for instructions.
Documents or photos: Previewing and Adjusting the Scan Area
Film or slides: Previewing and Adjusting the Scan Area
Office Mode:
Click the Help button in the Epson Scan window for instructions.
When you are finished selecting settings and previewing, click the Scan button.
The File Save Settings window appears. Select PDF as the Type setting. The current PDF
settings are displayed below it.