I fond the origin of the problem and a solution. The rendering propblem occurs when you have all of the following:
1. TrueType bytecode interpreter enabled in the freetype library. (This is a compile-time option which is off by default due to patent issues, Ubuntu turns it on while Fedora does not.) 2. Kpdf using anti-aliasing. (No idea where this is configured, maybe from the global KDE setting). 3. A pdf file with embedded bitmapped (or maybe any non-TrueType) fonts. This is typical for pdfs generated by TeX. When all of this happens, kpdf uses its own (or KDE's) anti-aliasing *and* freetype's autohinting. Each of the features is supposed to improve the view but their combination works poorly. A solution is to turn off the check for bytecode interpreter in kpdf. On Ubuntu, this piece of code actually lives in libpoppler which is a separate package. The attached patch to poppler fixes the problem for me. I don't know if it breaks something else. I checked evince and it does not seem to be affected. The same file is present in kpdf source. It should be patched there if kpdf is compiled without poppler. ** Attachment added: "disable freetype's autohinting when anti-aliasing" http://launchpadlibrarian.net/20554242/hinting.patch -- Poor font rendering in kpdf https://bugs.launchpad.net/bugs/48146 You received this bug notification because you are a member of Kubuntu Bugs, which is a direct subscriber. -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
