I recently switched from Windows 10 to CachyOS and have generally been enjoying the transition, thanks to the strong documentation and community support. Most of my previously used apps are now running well too. However, I'm facing an issue with the Czkawka app, a duplicate file finder. When I select a duplicate image, the preview pane only shows a tiny version of it. I've come across a GitHub issue that discusses this very problem. I can temporarily adjust the preview size from "-1" to "800" using GTK Inspector, but this change isn't persistent after restarting the app.
I found that modifying some files could be a potential fix. Specifically, I was directed to edit these files: czkawka_gui/ui/main_window.ui and czkawka_gui/ui/compare_images.ui, adding the property `800`. However, I can't locate these directories on my system. Is this adjustment only for Mac OS, or is there a way to make the change effective in Arch Linux? Any help would be greatly appreciated! This is the last app linking me to Windows 10 (well, except for needing Apple Music for my iPhone, but I can live with that).
2 Answers
To make the size change permanent, you’ll need to locate the correct UI files in the Czkawka installation directory. It sounds like the adjustments mentioned for the Mac OS version could be relevant for Linux as well! Try using the terminal to search for these files using commands like `find / -name 'main_window.ui'` to see if you can locate them. Once you find them, just edit and save your changes to hopefully resolve the preview size issue!
Exactly! Also, check if your app is installed through a package manager, as that could affect where the files are located.
You might want to try Stacer instead. It sounds like Czkawka is not quite meeting your preview needs, and Stacer could help! Just be sure to check if it has a duplicate file manager option, as it might not be as versatile as Czkawka in that regard.
I looked it up and found a link to Stacer, but it didn’t mention anything about duplicate file management. Seems like Czkawka is still the best bet there!
Exactly! Czkawka is amazing for finding duplicates and even similar images and videos without relying on file names or metadata, which is a huge plus.

Great idea! Doing a file search could definitely save time. If you find the files, just make sure you have permission to edit them.