I'm looking to build a couple simple picture frames. I don't have a jointer or planer, so would use my table saw or split-fence router for those operations. Even with those tools, though, it seems that running an 8' board over the jointer would be a bit difficult. Is it a problem to cut the 8' board into more manageable lengths (2-3') before jointing / planing them? I figure I'll lose any grain continuity I might have had by going this route, but that's not a problem.
Given that I will be using a table saw to joint the faces of the boards, it would be much easier to rip them to rough width (~1.5-2") beforehand as well. Would this pose any problems? Will I wind up with workpieces that are slightly different sizes by going this route?