images2pdf.mm

#import <Foundation/Foundation.h>
#import <AppKit/AppKit.h>

int main (int argc, const char * argv[]) {
	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

	if (argc == 2) {
		NSString *folderPath = [[NSString stringWithFormat:@"%s",argv[1]] stringByExpandingTildeInPath];
		BOOL isFolder;
		if ([[NSFileManager defaultManager] fileExistsAtPath:folderPath isDirectory:&isFolder]) {
			if (isFolder) {
				NSArray *contents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:folderPath error:nil];
				
				NSMutableData* outputData = [[NSMutableData alloc] init];
				CGDataConsumerRef dataConsumer = CGDataConsumerCreateWithCFData((CFMutableDataRef)outputData);
				CGContextRef pdfContext = CGPDFContextCreate(dataConsumer, NULL, NULL); 
				CFRelease(dataConsumer);
				
				for (NSString *path in contents) {
					NSString *itemPath = [folderPath stringByAppendingPathComponent:path];
					BOOL isFile;
					if ([[NSFileManager defaultManager] fileExistsAtPath:itemPath isDirectory:&isFile]) {
						if (!isFile) {
							if (UTTypeConformsTo((CFStringRef)[[NSWorkspace sharedWorkspace] typeOfFile:itemPath error:nil],kUTTypeImage)) {
								CGImageSourceRef pageSource = CGImageSourceCreateWithURL((CFURLRef)[NSURL fileURLWithPath:itemPath], NULL);
								CGImageRef pageImage = CGImageSourceCreateImageAtIndex(pageSource, 0, NULL);
								CGRect pageSize = CGRectMake(0, 0, CGImageGetWidth(pageImage), CGImageGetHeight(pageImage));
								CGContextBeginPage(pdfContext, &pageSize);
								CGContextDrawImage(pdfContext, pageSize, pageImage);
								CGImageRelease(pageImage);
								CFRelease(pageSource);
								CGContextEndPage(pdfContext);
							}
						}
					}
				}
				CGPDFContextClose(pdfContext);
				CGContextRelease(pdfContext);
				
				NSString* documentPath = [folderPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@ - generated.pdf",[folderPath lastPathComponent]]];
				[outputData writeToFile:documentPath atomically:YES];
				[outputData release];
			}
		}
	} else {
		NSLog(@"Please supply only the path to the folder.");
	}
	
    [pool drain];
    return 0;
}