: Once you have defined a custom paper size, save it as a Print Template on the left panel to quickly recall those settings for future projects. System Requirements (Typical) Minimum Requirement Processor Intel or Apple Silicon (M1/M2/M3) Operating System macOS 12.0 (Monterey) or later (for current versions) Memory (RAM) 8GB (16GB recommended for heavy editing) Hard Disk 4GB of available space for installation Setting the Print module page size in Lightroom Classic