[Inkscape-user] Preventing patterns from shifting

Hello all,

I started a drawing on a US Letter–sized canvas; it contains a lot of objects that use patterns as fills. To share this drawing, I want to crop a lot of whitespace from the edges. When I do that, however, the positions of the patterns within the objects all change. Is there any way to "lock" patterns so that moving the objects doesn't change their appearance?

Thanks for any help,