Conceptual

How to Set Custom Page Sizes in Apple Pages on macOS and iOS for Printing PDFs

The core principle is that digital document properties regarding page dimensions and formatting attributes (such as width, height, margins, and orientation) exist at a hierarchical abstraction layer distinct from specific hardware printer drivers or paper stock limitations. This mechanism operates within the domain of Computer Science applied to Document Management Systems, where abstract "logical pages" are decoupled from physical printing constraints through a formal definition interface accessible via file-level configuration dialogs rather than peripheral settings. The theoretical significance lies in establishing an invariant document schema that allows for dynamic re-contextualization across various output devices without modifying the underlying content structure of the digital object.