It seems like the particular font that is used for the headlines is missing the letter 'A' or something like this. Could you try a different font for that if the problem disappears.
Thanks -- PDF is missing the letter "A" throughout the document. OK when viewed in Windows. https://bugs.launchpad.net/bugs/252250 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs