indesign canvas can not be 6500mm in CC
can not create a canvas with 6500mm, it reverts back to 5486.4 mm
As an industry standard software, you would expect that there is no limitations to the canvas size.
                1
                 vote
              
            
- 
      
Uwe Laubender
    
 commented
    
  Hi Adriank,
you could work around the issue and use a spread with several pages ( up to 10 ! ) where each of the pages are positioned individually on the spread using the Page Tool. That could be done best with NON-facing-pages documents.Regards,
Uwe Laubender
( ACP ) - 
      
FP
    
 commented
    
  Six and a half metres is a very high limit. From experience, file sizes can get huge at this scale. When I'm designing bigger than that I design at half-size and even quarter size. What are you trying to produce?