my pdf, in 77% size display, shows me a detail which disappears when I magnify to 1600% size display. - I would expect the reverse behaviour: with low resolution, I would expect no details, and with high resolution, I would expect to see every little detail of a drawing.
* Please explain this strange behaviour of the adobe reader. This is the main question.
* When I send the pdf to a paper printer, will I get a fuzzy line or a clear line, and what does it depend on ?