Regarding Xerox scanner compression issues, compare this great CCC-talk by David Kriesel, "Traue keinem Scan, den du nicht selbst gefälscht hast" [0] – Sorry, German only.
[0] https://www.youtube.com/watch?v=7FeqF1-Z1g0
[1] http://www.dkriesel.com/en/blog/2013/0802_xerox-workcentres_...
(Didn't MS's PDF-viewer have similar issues?)
Regarding Xerox scanner compression issues, compare this great CCC-talk by David Kriesel, "Traue keinem Scan, den du nicht selbst gefälscht hast" [0] – Sorry, German only.
[0] https://www.youtube.com/watch?v=7FeqF1-Z1g0
[1] http://www.dkriesel.com/en/blog/2013/0802_xerox-workcentres_...
(Didn't MS's PDF-viewer have similar issues?)