Actual Size vs Fit to Page for MTG Proxies: Which Print Setting Should You Use?
Use Actual Size or 100% for correctly prepared MTG proxy PDFs, but first match the PDF, loaded paper, print dialog, and printer-driver settings.
Layout, Scaling & Cutting
MTG Proxy Margins and Gutters: Why Nine Cards Sometimes Don’t Fit on a Page
A 3×3 proxy grid may fit the physical sheet but exceed the printer’s usable area. Use these formulas and checks to diagnose gutters, clipping, and scaling.