Related Callback Conversion Task for CPDFConverter Instance

/**
 * Called when a conversion operation begins.
 */
- (void)converter:(CPDFConverter *)converter didStartConvert:(NSError *)error;

/**
 * Called when a conversion operation finishes.
 */
- (void)converter:(CPDFConverter *)converter didEndConvert:(NSError *)error;

/**
 * Called when a conversion operation finishes working on a page in a document.
 */
- (void)converter:(CPDFConverter *)converter pageIndex:(NSUInteger)index pageCount:(NSUInteger)count;