
indiPDF is a comprehensive PDF editing application designed specifically for Linux.
It provides all the tools you need to view, annotate, edit, and manage PDF documents
with a native GTK-styled interface that integrates seamlessly with your desktop.
Features include:
indiPDF respects your privacy and works entirely offline. Your documents never
leave your computer.
It started up for me with the basic install from the Software Manager. The free version is a demo and saves with a watermark.
It may not be just the Flatpak. I got the system package and in Mint 22.3 Cinnamon I'm also getting a white window. Says indiPDF in the title bar but nothing else loads. Sounds excellent, though! Looking forward to either a fix, or to figuring out what I'm doing wrong. :) You can Ctrl-O and get the appropriate dialog box, so something's working under the hood, but when I select a PDF nothing seems to happen.
Appears that it does not come with everything required in the Flatpak, it starts but the window is white and blank.