Red Hat Bugzilla – Bug 853502
Incorrect mathematical symbols displayed
Last modified: 2013-07-31 14:31:01 EDT
Created attachment 608602 [details]
PDF file illustrating the problem
In the attached PDF, several mathematical symbols are rendered as completely different symbols in both evince and okular, which they render fine in acroread. I'm guessing that commonality between okular and evince points to popper; my apologies if that's not correct; I don't really know enough about PDF internals to know who gets the blame on this one.
In problem 3b, the the "not equals" symbol in "sin(2 \= x)" should be a pi symbol.
In problem 5, two instances of a double prime are missing completely.
Everything appears fine when the document is printed.
The file in question was created on windows, probably by printing a word document, using PDFCreator which internally just uses ghostscript 9.05.
This appears to happen on both F16 and F17:
I'm seeing this problem on Fedora 18 with both okular & evince when viewing electronic component specification sheets, so I have lots of examples if you need them.
But if I open the pdf in emacs it displays it properly.
Is there anything I can do to help track this down ?
It really does need fixing !
I think the severity of this should be marked as HIGH, as not being able to read technical documentation properly is a real problem and bad for fedora's reputation.
Richard, for now, I'd recommend opening a new bug, and indeed include a sample pdf showing the problem, thanks.
OK, will do. Any idea what component I should book this bug against? I first found this in okular but evince does it too.
this is the same bug as Richard reported here: https://bugzilla.redhat.com/show_bug.cgi?id=901858 for F18. Removing wine-symbol-fonts "fixes" this.
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