Quote:
Originally Posted by bazmi
the pdf's that i am using are magazines - scientific american, ieee computer, spectrum etc etc. as these are professionally done, i would expect that they have used good engines. for instance, each issue of scientific american takes about 10-15 secs to open the first page and then any zooming, panning etc takes same amount of time. i find that practically unusable.
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I'm sure they're professionally done, but I doubt they're optimized well for the DR. Each page is probably stored inside the PDF document as an image file with high resolution, high number of colors, possibly compression, etc. When the DR wants to display each page it needs to resize the resolution and convert to 16 gray scale, which is slow. A PDF that uses images with resolutions/colors closer to the native resolution/grayscale of the DR or one that stores the pages as text instead of images should be much faster.