Create a table of contents from a pdf file

by

Something like this might help you get started:

NSURL *documentURL = ...; // URL to file or http resource etc.
CGPDFDocumentRef pdfDocument = CGPDFDocumentCreateWithURL((CFURLRef)documentURL);
CGPDFDictionaryRef pdfDocDictionary = CGPDFDocumentGetCatalog(pdfDocument);
// loop through dictionary...
CGPDFDictionaryApplyFunction(pdfDocDictionary, ListDictionaryObjects, NULL);
CGPDFDocumentRelease(pdfDocument);

...

void ListDictionaryObjects (const char *key, CGPDFObjectRef object, void *info) {
    NSLog("key: %s", key);
    CGPDFObjectType type = CGPDFObjectGetType(object);
    switch (type) { 
        case kCGPDFObjectTypeDictionary: {
            CGPDFDictionaryRef objectDictionary;
            if (CGPDFObjectGetValue(object, kCGPDFObjectTypeDictionary, &objectDictionary)) {
                CGPDFDictionaryApplyFunction(objectDictionary, ListDictionaryObjects, NULL);
            }
        }
        case kCGPDFObjectTypeInteger: {
            CGPDFInteger objectInteger;
            if (CGPDFObjectGetValue(object, kCGPDFObjectTypeInteger, &objectInteger)) {
                NSLog("pdf integer value: %ld", (long int)objectInteger); 
            }
        }
        // test other object type cases here
        // cf. http://developer.apple.com/mac/library/documentation/GraphicsImaging/Reference/CGPDFObject/Reference/reference.html#//apple_ref/doc/uid/TP30001117-CH3g-SW1
    }    
}

More Related Contents:

  1. How to send json data in the Http request using NSURLRequest
  2. How to include and use new fonts in iPhone SDK?
  3. How do I draw a shadow under a UIView?
  4. Objective-C – When to use ‘self’
  5. When should I release objects in -(void)viewDidUnload rather than in -dealloc?
  6. UUID mismatch detected with the loaded library
  7. UITableView issue when using separate delegate/dataSource
  8. Can I make POST or GET requests from an iphone application?
  9. How to use the first character as a section name
  10. How can I programmatically pause an NSTimer?
  11. NSArray Equivalent of Map
  12. NSMutableString as retain/copy
  13. Should I use NSUserDefaults or a plist to store data?
  14. Moving UITabBarItem Image down?
  15. iOS: Using device modifiers for loading xib files?
  16. What is -[NSString sizeWithFont:forWidth:lineBreakMode:] good for?
  17. Best Cocoa/Objective-C Wrapper Library for SQLite on iPhone [closed]
  18. NSString to NSArray
  19. Annotation details after detail disclosure pressed?
  20. subclassing UIWindow while using storyboards
  21. Reference from UITableViewCell to parent UITableView?
  22. Access App Identifier Prefix programmatically
  23. How to create subscript characters that’s not in Unicode in iOS
  24. Blocks instead of performSelector:withObject:afterDelay: [duplicate]
  25. Difference between two NSDate objects — Result also a NSDate
  26. How to programmatically rotate image by 90 Degrees in iPhone? [duplicate]
  27. Core Data and Core Location
  28. UIPickerView programmatic example?
  29. Better performance with libxml2 or NSXMLParser on the iPhone?
  30. Problem dealloc’ing memory used by UIImageViews with fairly large image in an UIScrollView

Leave a Comment