I have a number of PDFs which are taking between 10 min to 2 hours to raster with pdftoppm at a reasonable 150 DPI resolution. We process a lot of files like these through our system and typical times are in the 1-10 sec range. Unfortunately, our PDFs are sensitive, so please e-mail me directly for a Dropbox link to some example PDFs. Thanks a lot for any help that you can provide! Sincerely, Cory
Which poppler version are you using? You can send them to me.
FWIW I got the files, and yes they are slow :D
Created attachment 84241 [details] [review] don't copy not needed bitmap The problem here was that we copied 37.059 times the complete hugh bitmap (37.059 isolated transparency groups !!!) and then never used it because the transparency groups were isolated :-) BTW, there is enough room for performance increasements even for non isolated transparency groups: 1. The complete bitmap is copied but only the alpha channel is used and 2. even from the alpha channel only a part is needed! (s. splash->setInNonIsolatedGroup())
Pushed
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