This is a subclass of NSImageRep that understands how to manipulate, represent, and draw PDF-formatted image data.

@interface NSPDFImageRep : NSImageRep
// Initializers
- (id)initWithData:(NSData*)pdfData;
// Class Methods
+ (id)imageRepWithData:(NSData*)pdfData;
// Instance Methods
- (int) currentPage;
- (int) pageCount;
- (void)setCurrentPage:(int)page;
- (NSData*)PDFRepresentation;
- (NSRect)bounds;