Dart

PDF File Encoding to Base64

See more Base64 Examples

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

import 'package:chilkat/chilkat.dart';

void main() {
  final pdfData = CkBinData();

  try {
    pdfData.loadFile('qa_data/helloWorld.pdf');
  } on ChilkatException {
    print('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".
  final b64 = pdfData.getEncoded('base64');
  print(b64);

  // Decode from base64 PDF.
  final pdfData2 = CkBinData();
  pdfData2.appendEncoded(b64, 'base64');
  try {
    pdfData2.writeFile('qa_output/helloWorld2.pdf');
  } on ChilkatException {
    print('failed to write PDF file.');
    return;
  }
}