Do I need to imposition my Booklet files? January 18, 2014 00:41 Updated Follow No, your booklet files will be impositioned during our prepress processes. Please supply your design files as single pages (not spreads or imposed) in one PDF. See: Press-ready files for Booklets. Related articles Design Considerations for Booklets Do I need to adjust my Booklet for creep? What is bleed? Crop marks What is a mini brochure?