485066 2024-04-05 06:35:46 +0000 When you annotate an image in Gwenview, the resulting image is upscaled if display scaling is enabled 2025-11-11 07:56:09 +0000 1 1 2 Applications gwenview general 24.02.1 Arch Linux Linux CONFIRMED https://bugs.kde.org/show_bug.cgi?id=502281 NOR normal --- 1 nyanpasu64 gwenview-bugs-null bojidar.marinov.bg m.kurz madness742 0 oldest_to_newest 2308517 0 168171 nyanpasu64 2024-04-05 06:35:46 +0000 Created attachment 168171 A 2x1 checkerboard edited by X11 Gwenview's Annotate button at 125% scaling. SUMMARY If your screen is set to fractional (eg. 125%) or 200% scaling, and you annotate an image from Gwenview, the resulting image is scaled by 125% or 200% rather than retaining its original size. STEPS TO REPRODUCE 1. Login under X11 or Wayland with display scaling enabled. 2. Open an image in Gwenview. 3. In the left sidebar, click Annotate. 4. Optionally draw on the image. Then click OK. OBSERVED RESULT On X11, the image is resized by your current display scale factor (eg. 125%), using nearest neighbor interpolation (which results in uneven pixels). On Wayland, the image is resized by (your current display scale factor → rounded up to the nearest integer scale factor). At 125% scaling, this is 200%. EXPECTED RESULT You can draw on the image at its original resolution (like editing it in GIMP or Kolourpaint). SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.0.3 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.3 Kernel Version: 6.7.4-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 5600X 6-Core Processor Memory: 15.5 GiB of RAM Graphics Processor: AMD Radeon RX 570 Series Manufacturer: Gigabyte Technology Co., Ltd. Product Name: B550M DS3H ADDITIONAL INFORMATION 2427319 1 madness742 2025-05-25 12:22:36 +0000 I can confirm the same behaviour. The image goes from 2318x3239 to 4636x6478. My main monitor uses 125% scaling and my second monitor uses 200% scaling. It seems like it used the non-primary monitor scaling. Operating System: Fedora Linux 42 KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.14.0 Qt Version: 6.9.0 Gwenview Version: 25.04.1 2439543 2 bojidar.marinov.bg 2025-07-09 10:45:41 +0000 I tracked this down to an issue in kImageAnnotator, which ends up rescaling images ever since ~ https://github.com/ksnip/kImageAnnotator/commit/21d9b05603c876e4adc235f0607d339087a3f64a I have submitted a pull request on kImageAnnotator: https://github.com/ksnip/kImageAnnotator/pull/342 I wonder if it makes sense for Gwenview to reuse Spectale's annotation tools somehow.. 168171 2024-04-05 06:35:46 +0000 2024-04-05 06:35:46 +0000 A 2x1 checkerboard edited by X11 Gwenview's Annotate button at 125% scaling. checker2-annotated.png image/png 3797 nyanpasu64 iVBORw0KGgoAAAANSUhEUgAAAfQAAAH0CAYAAADL1t+KAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAO h0lEQVR4nO3awYkDURBDQWlx/imPD2uDU2hR7zQUk0CL3yRPPj3P/2fbMMYYY+yOvb4fvz8wxhhj 7Jb9RZIkna+JyZ0xxhi7biZ3xhhjbMCauNAZY4yx6+ZCZ4wxxgbMozhJkgZqYnJnjDHGrpvJnTHG 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