How to load a pdf from the url in IPhone? - iphone

Question

I have an application in which i am loading a pdf from the bundle by using
CFURLRef pdfURL = CFBundleCopyResourceURL(CFBundleGetMainBundle(), CFSTR("hhhh.pdf"), NULL, NULL);.
Now i want to load it from my web server. I was done it with a string url using
NSString *strUlr = [NSString stringWithFormat:#"https://s3.amazonaws.com/hgjgj.pdf"];
CFStringRef aCFString = (CFStringRef)strUlr;
//CFURLRef pdfURL = aCFString;
// NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
//pdf = CGPDFDocumentCreateWithURL((CFURLRef)pdfURL);
CFURLRef pdfURL = CFBundleCopyResourceURL(CFBundleGetMainBundle(),aCFString, NULL, NULL);
pdf = CGPDFDocumentCreateWithURL((CFURLRef)pdfURL);
NSLog(#"%#",pdf);
//CFRelease(pdfURL);
but with no success..Can anybody knows how to make this code working.I dont need to load it in to pdf because of some reasons.Can anybody help me?

Answer 1

You still try to get url to resource that is supposed to be in your application bundle, not on remote server. Correct method to create url will be CFURLCreateWithString:
CFURLRef pdfURL = CFURLCreateWithString(NULL, aCFString, NULL);
Keep in mind that it may be better to download your pdf and cache it locally before display - that approach will also give you more flexibility in error handling and probable authentication challenges for your url

Answer 2

For reading purpose only you can load pdf file in Uiwebview by url.

Answer 3

If i am not mistaken then you probably want to read pdf from web server in your iPhone, if so then you can have UIWebView for your requirements: Here's how you can read and store it locally :
First create UIWebView and include <<UIWebViewDelegate>>
NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *filePath = [documentsPath stringByAppendingPathComponent:#"YourPDF.pdf"];
if(![[NSFileManager defaultManager] fileExistsAtPath:filePath]){
// download file , here "https://s3.amazonaws.com/hgjgj.pdf" = pdf downloading link
NSData *pdfData = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:#"https://s3.amazonaws.com/hgjgj.pdf"]];
//Store the downloaded file in documents directory as a NSData format
[pdfData writeToFile:filePath atomically:YES];
}
NSURL *url = [NSURL fileURLWithPath:filePath];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[yourWebView setUserInteractionEnabled:YES];
[yourWebView setDelegate:self];
yourWebView.scalesPageToFit = YES;
[yourWebView loadRequest:requestObj];