@thb @inkscape

I guess one caveat is the resizing of the imported content: if resize is done after the import, which afaik is the usual workflow in #libreoffice, then it needs to be repeated for each and every imported image on differnt slides... probably even worse than manual duplication+image replacement.
Not sure wha'ts the best #ux solution to that, maybe actually a right-click option on an imported image, already there and resized, which would offer "Import the other pages from PDF"?