Is there a flag that shows that image Rendition (thumbnail) is generated? I have a library and some large files (more than 2Mb) does not have renditions generated. I do Preview feature and want to check if this image exists or not..
In SharePoint Online You can see thumbnails and urls here:
upd.: I found "PreviewExists" flags, but actually there is no preview (for example for large > 60Mb *.tif files):
so I cannot use these flags..