Ruby

Insert PDF as Base64 into XML, then Extract back to PDF File

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Demonstrates how to insert any file into XML using base64 encoding, and then extract back to the original file. This example embeds a PDF in the XML, but the type of file does not matter. It can be any type of file. Ruby

require 'chilkat'

success = false

# Load our PDF file.
bd = Chilkat::CkBinData.new()
success = bd.LoadFile("qa_data/helloWorld.pdf")
if (success != true)
    print "Failed to load PDF file." + "\n";
    exit
end

# Load the following XML:
# 
# <?xml version="1.0" encoding="utf-8" ?>
# <something>
#     <xyz>
#         <abc123>A base64 encoded PDF file will be inserted under this node.</abc123>
#     </xyz>
# </something>

xml = Chilkat::CkXml.new()
success = xml.LoadXmlFile("qa_data/xml/xmlToContainPdf.xml")
if (success != true)
    print "Failed to load XML file." + "\n";
    exit
end

# Insert the PDF into the XML.
xml.NewChild2("xyz|pdfData",bd.getEncoded("base64"))

# Show the new XML:
print xml.getXml() + "\n";

# The XML now looks like this:
# <?xml version="1.0" encoding="utf-8" ?>
# <something>
#     <xyz>
#         <abc123>A base64 encoded PDF file will be inserted under this node.</abc123>
#         <pdfData>JVBERi0xL ... UlRU9GCg==</pdfData>
#     </xyz>
# </something>

# To extract the PDF data out and restore the PDF file:
bd2 = Chilkat::CkBinData.new()
success = bd2.AppendEncoded(xml.getChildContent("xyz|pdfData"),"base64")
success = bd2.WriteFile("qa_output/helloWorld.pdf")

print "Success." + "\n";