Another entry of Printing Woes

So I printed the All-in-one V2.5 board out (not my own printer) . And it appeared right, but on closer measurement, it printed to 69mm X 140mm. I think it was gastric that had a similar issue too with it printing 69X139 or so.
My question, is this useable? Or will it simply not work? I imagine it won't effect anything but the longer headers, but wouldn't there be enough room to "squash" them in? I'm asking because I won't have another chance to print/etch till next week and I want to get it done as soon as possible.
My question, is this useable? Or will it simply not work? I imagine it won't effect anything but the longer headers, but wouldn't there be enough room to "squash" them in? I'm asking because I won't have another chance to print/etch till next week and I want to get it done as soon as possible.