CGPDFPageRef

CGPDFPageRef is a data type in the Core Graphics framework of Apple's operating system development environments, specifically for macOS, iOS, and tvOS. It represents a single page within a PDF document. Instances of CGPDFPageRef are obtained from a CGPDFDocumentRef, which represents the entire PDF document.

A CGPDFPageRef provides access to the content and properties of a specific page. It allows developers to perform operations such as drawing the page to a graphics context, retrieving its dimensions, and accessing page-specific metadata. This is crucial for tasks like rendering PDF content for display on screen, printing, or exporting to other formats.

When working with a CGPDFPageRef, developers typically obtain it by specifying a page number or index from the parent CGPDFDocumentRef. The framework manages the lifecycle of these page references, and it's important to release them when they are no longer needed to prevent memory leaks, usually by calling CGPDFPageRelease. This ensures efficient resource management within applications that handle PDF documents.