I hope it is OK.
Open your PDF manual.
Make screenshots of some pages of the manual.
Open one of them in Window painter. Don’t use Photoshop!
Select all and copy.
Open some of jpeg images taken by your camera and paste into it.
Now you have your PDF pages right on your camera’s screen.
|Valley by the light of a blue moon by cjf2|
from Down in the Valley
|Lake Erie Stone Pier by yobbyt|
from Dock or Pier