SUMMARY The lines produced by the freehand line annotation tool are often jagged with pixelated and sharp curves. It would be nice if they could be smoothened after the user is done making the line, to make it look better. Microsoft Edge and PDF-XChange Editor both do this. STEPS TO REPRODUCE 1. Draw a freehand line with a touchpad or mouse OBSERVED RESULT A small amount of 'noise' comes into the drawing, causing it to look jagged and not nice. FEATURE REQUEST The drawing is smoothened by the app after the user is done drawing the curve. SOFTWARE/OS VERSIONS Operating System: Kubuntu 21.10 KDE Plasma Version: 5.22.5 KDE Frameworks Version: 5.86.0 Qt Version: 5.15.2 Graphics Platform: X11 ADDITIONAL INFORMATION I can provide a screen recording showing what I mean in Okular and Edge if needed