Should I use the Keystone function to adjust the projected image during the installation of my product?

• Do not make adjustments with the projector's Keystone function while installing the projector. Doing so may result in a reduction in image quality and pen accuracy. Instead, use the adjustment screws on the adjustment unit to adjust keystoning.
  
  Related tasks
  Changing the Image Aspect Ratio
  Related references
  Available Image Aspect Ratios