[Trisquel-users] common problem with scanners

[adel . afzal]

I don't know how to limit scanners to particular page sizes.  The scanner  
always seems to scan the full potential size (the full scan bed, or the  
automatic document feeder's full motor run time per page).

I have letter size pages to scan through the automatic document feeder.  The  
scanner can potentially do legal size pages (longer than letter size).

So I get pdfs that are legal size.  Each scanned page has a blank part at the  
bottom, where the scanner has done extra (unnecessary) scanning.  I have  
tried a few different scanners with Simple Scan, and have had the same  
experience.

Can I correct it at the scanning stage?  Or is there an easy way to change  
multi-page pdfs from legal size to letter size (without doing each page  
individually hopefully)?  It's always the same bottom few inches that are  
blank.