https://bugs.kde.org/show_bug.cgi?id=492529
--- Comment #2 from William Bader <williamba...@hotmail.com> --- Hopefully viewing the PDF with a profiling build of okular will identify the problem. I think that okular, atril, and evince all use libpoppler as the back-end for PDFs, and usually okular is faster, I think because atril and evince do an extra layer of copying internally. My laptop is using xorg-x11-server-Xorg-1.20.14 and xorg-x11-drv-nvidia-560.35.03 with an NVIDIA GeForce RTX 3050 Laptop GPU. Fedora 40 has poppler-24.02.0 Maybe the PDF has a large image with a color format that doesn't match any of the formats provided by X. pdftops -level1sep takes 54 seconds, while pdftops -level2 takes under 1 second, so maybe okular is interfacing with poppler in a way that poppler think that it needs to use splash. -- You are receiving this mail because: You are the assignee for the bug.