(Objective-C) PDF File Encoding to Base64

Demonstrates how to encode a PDF file to base64, and then decode.

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#import <CkoBinData.h>
#import <NSString.h>

CkoBinData *pdfData = [[CkoBinData alloc] init];

BOOL success = [pdfData LoadFile: @"qa_data/helloWorld.pdf"];
if (success != YES) {
    NSLog(@"%@",@"failed to load PDF file.");
    return;
}

// Encode the PDF to base64
// Note: to produce base64 on multiple lines (as it would appear in the MIME of an email),
// pass the string "base64_mime" instead of "base64".
NSString *b64 = [pdfData GetEncoded: @"base64"];
NSLog(@"%@",b64);

// Decode from base64 PDF.
CkoBinData *pdfData2 = [[CkoBinData alloc] init];
[pdfData2 AppendEncoded: b64 encoding: @"base64"];
success = [pdfData2 WriteFile: @"qa_output/helloWorld2.pdf"];
if (success != YES) {
    NSLog(@"%@",@"failed to write PDF file.");
    return;
}