Metadata: Inserted manually through LS website UI. Alternative methods are available to publishers that are submitting 10 or more titles at one time.
Cover: pdf (Files must be PDF/X-1a:2001 or PDF/X-3:2002 compliant. ); TIF (.tiff) tagged image file format; PS (.ps) postscript
Content: pdf (Files must be PDF/X-1a:2001 or PDF/X-3:2002 compliant. )
Tech details: https://www.ingramcontent.com/Documents/LSI_FileCreationGuide.pdf
Information on LS Distribution network: https://help.lightningsource.com/hc/en-us/articles/211684203-Distribution-Partners