Base64 Encoding of PDF with File Name Help!

[NicsDisplayName]

Hi Alteryx Gurus and Enthusiast!

I've been rattling my brain over the last day.

I'm attempting to encode PDFs to a BASE64 Encoding and then generating an XML file with that encoded string as a parameter. 

I have successfully 

- Automatically generated PDFs

- Encoded PDFs into Base64 string

- Generated an XML

- Reversed the encoding to a file

But I've not successfully kept the file name as a part of the encoding.

for my use case i need the file name to be a part of that Base64 encoded string.

I'm fairly new to the base 64 concepts and am at a loss as to what try next. 

Any advice or tips are appreciated.