Slightly OT: Adobe Acrobat / TR6 Seat Recovering Instructions

[Jon & Susan <jsmessier@mail.earthlink.net>]

I need help...with Adobe Acrobat. I have recently scanned the Victoria 
British "TR6 Seat Recovering Instructions" and after compiling the 12 pages 
as pdf files. The file is 19 megabytes. A little large to send to the 
person via email who wanted the instructions.

Does anyone know how to make the file smaller and more workable? Is there a 
trick or option within Adobe Acrobat?

I guess I could always re-scan the pages at a smaller resolution (I did it 
at 100dpi).

Thanks for the help in advance.

Jon