Hello I'm a new user trying to learn as I go. I have produced a complex and multi layered document and wish to get it printed. Exporting as PDF offers option to include bleed. But nothing happens when selected (other print marks will appear when that option is selected). I learn from reading, that bleed should be set when creating the document but there is nothing obvious to select at that stage and anyhow I want to fix the document I have invested my time into already. PLEASE CAN ANYONE HELP?