https://bugs.kde.org/show_bug.cgi?id=410723
--- Comment #9 from Oliver Sander <oliver.san...@tu-dresden.de> --- Created attachment 122832 --> https://bugs.kde.org/attachment.cgi?id=122832&action=edit Plot of the points of the spiky path I extracted the points of the problematic path from the pdf document, and plotted them using gnuplot. This gets us one step closer to an explanation: As can be seen from the attached picture, each point is actually a pair of points, a small distance apart. Together with a MiterJoin line style this explains the jaggedness of the resulting path. [Currently I simply assume that MiterJoin line drawing is used, but I didn't check. For a 'normal' set of points on a path you wouldn't see the difference.] So the remaining task is to find out where these double points come from. My system (which is a bleeding edge Okular on Debian Buster) doesn't produce them. I am tempted to conjecture that the problem is somewhere in the lower layers of the tablet input stack, and not in Okular itself. -- You are receiving this mail because: You are watching all bug changes.