Ooze, I recommend you to try the method that Domin and I have described. You'll be surprised how much easier it is and the result is perfect. The only problem may be getting the right tape, it must hold on the wet paper (or rather dry with the paper and hold) and glass as well. The good old brown paper tape with a glue layer is what you need, but it may not be available at all stationery shops.
And print size doesn't matter provided you have a suitable sheet of glass (strictly speaking, glass is not absolutely necessary, it may be anything flat, rigid and with a smooth surface, like laminated plywood, etc.)