多页 PDF

Created: November-22, 2018

 UIGraphicsBeginPDFContextToFile(fileName, CGRectZero, nil);
    
    UIGraphicsBeginPDFPageWithInfo(CGRectMake(0, 0, 600, 792), nil);
    
    UIGraphicsBeginPDFPageWithInfo(CGRectMake(0, 0, 600, 792), nil);
    
    UIGraphicsBeginPDFPageWithInfo(CGRectMake(0, 0, 600, 792), nil);
         
    UIGraphicsEndPDFContext();