How to convert NSData into a pdf file?

Question

I am trying to download one pdf using NSURLConnection methods i got some data in didReceiveData method now i want to convert that data into pdf and display it on webview while downloading whole pdf so that user can view some part of pdf.

Thanks in advance.

Possible duplicate of [How to download PDF and store it locally on iPhone?](http://stackoverflow.com/questions/2226615/how-to-download-pdf-and-store-it-locally-on-iphone) — ChintaN -Maddy- Ramani, Aug 29 '16 at 07:01
BTW, don't use the deprecated `NSURLConnection` anymore. Use `NSURLSession` (or load it directly into a web view). — Rob, Aug 29 '16 at 07:22
Actually the file is still in downloading state.Suppose i have to download a pdf of 10mb from server. i started downloading it when i got 5 mb of data, i want to access and preview that data as pdf while the rest of the pdf is downloading. — Sachin Amrale, Aug 30 '16 at 04:50

score 0 · Answer 1 · edited May 23 '17 at 10:33

You can can do that by using following code:

Directly load in WebView:

//Pass your NSData in PdfData

[webview loadData:PdfData MIMEType:@"application/pdf" textEncodingName:@"utf-8" baseURL:nil];

OR

Use CGPDFDocumentCreateWithProvider to generate pdf and then load to webview:

//NSData to pdf
NSData *contentData               = //Your NSData
CFDataRef PDFData                 = (CFDataRef)contentData;
CGDataProviderRef provider        = CGDataProviderCreateWithCFData(PDFData);
CGPDFDocumentRef genPdf           = CGPDFDocumentCreateWithProvider(provider);

Also check: Loading NSData into a UIWebView

How to convert NSData into a pdf file?

1 Answers1