The built-in function, ng:base64EncodeFile converts the binary contents of a file into base64. This can e.g. be used, if you want to insert any kind of data into an XML node, without substituting any characters, that are not allowed.
This function is related to the functions: ng:base64, ng:base64ToUTF8 and ng:base64EnodeResource
This can e.g. be used, if you want to insert dynamic images directly in the contents of an email.
Here is an example:
ng:base64EncodeFile('D:\temp\Myfile.txt')
This returns the base64 encoded data, that is found in the file, D:\temp\Myfile.txt
If the file e.g. contains the text:
InterForm
Then the function returns the equivalent base64 data stream:
SW50ZXJGb3Jt
