I have a series of high quality images stored as
pdf, one image per file. I want to use these images as a a series of rotating wallpapers. However, apparently Ubuntu (16.04) does not handle pdf files as wallpaper (if I select the folder containing the pdf files in Desktop Settings, it shows empty). Is there a way to trick Ubuntu to make it think the file is an image? Or is the rendering of the background something quite different from the opening of a pdf file? (apparently, it is possible to use video file and gif files as wallpaper, so maybe this is also possible).
Notice that I am aware I could convert the pdf files to
png or another image format (e.g. using
convert tool), but for the same quality the file grows around 10 times in size. Therefore, I would rather keep the images in their current format.