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I'm unsure if you are talking about that curved lines appear thicker than straight lines or that horizontal lines appear thicker than vertical lines. This is only about the latter. I found a scientific article called A Thickness Illusion: Horizontal Is Perceived as Thicker than Vertical by de Waard, Van der Burg, and Olivers. It was january 2019 in the ...


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The optical adjustment is there to compensate for an illusion that is caused by human perception. Mostly this illusion happens in the visual processing pathway somewhere between your eye and your brain. Now its perfectly understandable that you get the answer use your eyes because thats the only simple answer. Your brain sees the illusion so you should be ...


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No problems as long as the font files stay untouched. One theoretical possibility to get into troubles exists: If the place where customer's name or another change is inserted is inside a Google font file which is embedded to the print PDF, legal problems can arise. Copyright owners have allowed Google to distribute fonts freely for creating printed and ...


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