When you scan large imports it can make a difference for offsite backup - we use a scanner and set it for high compression black and white and the files are fairly small. You might actually ask your hospital if it would be possible to send as PDF - would use less bandwidth for them, makes them secure - you can't easily download and edit without making the file look altered, etc.
You can save large files - just don't need to. I actually use a scanner and experimented with compression, etc. to find what seems to work for us.
Steven