I’m trying to create my own gallery. However, I don’t seem to be able to select any image file for inclusion. I know that Libreoffice uses SDG files in their galleries. There does not seem to be a way to create those, other than using StarOffice of an older version of LibreOffice. So, my questions are:
- Which image file types can I use to include in my gallery?
- How do i create SDG files from existing images?