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+This mode will increase quality of Panel View if source image resolution is bigger than target device resolution. 
+But it can also introduce a small blur of page when it is not zoomed in.
+
+**It is intended for Kindle e-readers with 167 ppi and 212 ppi screen.**
+
+It will **not** provide quality increase on newer models with 300 ppi screen (Paperwhite 3, Voyage, Oasis) unless source file resolution is unusually high - around 1600x2100.
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