The problem is that poppler on Ubuntu is build without Cairo support (a
result of bug #61161) und uses the splash backend. splash does not
support anti-alising (which is probably the reason why it's much faster)
and upstream already made clear that this will not change, see
https://bugs.freedesktop.org/show_bug.cgi?id=3730 .
We have to do a compromise. Either we will have fast rendering without
antialiased vector lines, or antialiased vector lines but slow
rendering. There is no way currently to get both unless you have a very
fast machine where the slowness of cairo has no big impact. For the time
being Ubuntu decided to go with option 1, i.e. faster rendering but
without anti-aliasing.
But there is work going on to optimize the Cairo backend and Ubuntu will
switch when it got faster.
I will thus mark you bug report as rejected. If you think this is wrong,
please reopen the bug again. Thank you.
** Changed in: poppler (Ubuntu)
Status: Confirmed => Rejected
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no anti-aliasing for vector graphics in PDF using evince in edgy
https://launchpad.net/bugs/67018
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