pdf page counter using quartz in objc

pdfPageCounter.m

/* from scriptbuilders. cheap way to utilize quartz on osx for pdf pagecount */

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

int main (int argc, const char * argv[]) {

if (argc != 2){
printf("Usage: PDFPageCounter path\n");
return 1;
}
int returnValue = 0;
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSString *filePath = [[[NSProcessInfo processInfo] arguments] objectAtIndex:1];
NSURL *docURL = [[NSURL alloc] initFileURLWithPath:filePath];
PDFDocument *doc = [[PDFDocument alloc] initWithURL:docURL];
if (doc) {
printf("%i\n", [doc pageCount]);
[doc release];
}
else {
printf("no valid PDF document\n");
returnValue = 2;
}
[docURL release];
[pool drain];
return returnValue;
}