JavaScript

PDF File Encoding to Base64

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

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

var pdfData = new CkBinData();

success = pdfData.LoadFile("qa_data/helloWorld.pdf");
if (success !== true) {
    console.log("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".
var b64 = pdfData.GetEncoded("base64");
console.log(b64);

// Decode from base64 PDF.
var pdfData2 = new CkBinData();
pdfData2.AppendEncoded(b64,"base64");
success = pdfData2.WriteFile("qa_output/helloWorld2.pdf");
if (success !== true) {
    console.log("failed to write PDF file.");
    return;
}