PDFs from GetMyInvoices → OneDrive = corrupted – Base64 issue?

Questions
1

Hey community,

I’m running into a weird problem and would love some input.

I’m using the following setup in Make:

  • GetMyInvoices - Watch Documents

  • GetMyInvoices - Get a Document

The document seems to come through as Base64, and when I try to upload it to OneDrive (using the regular OneDrive upload module), the file gets saved as a PDF, but it’s corrupted every time. Can’t open it in any PDF viewer.

I’ve tried a bunch of things:

  • Decoding with ToBinary()

  • Running custom JavaScript inside Make

  • Even tried some Python and a few external tools
    → no luck so far. Either the output is still broken, or the module doesn’t accept it at all.

I feel like I’m missing a simple step. Maybe there’s a cleaner way to fetch the raw binary and skip the Base64 entirely?

Has anyone got this working end-to-end? I’d be super thankful for any ideas or working examples. Happy to share more details if needed.

Cheers,
Marc

3

Welcome to the Make community!

To convert Base64 to binary, you can use the built-in function:

However, you will need to specify that the input is encoded in base64 instead of plaintext.

Here’s an example of how you can use this function:

{{ toBinary(1.data; "base64") }}
(copy-paste the above into the field, or type it exactly as shown)

e.g.:
Screenshot 2025-08-29 180843

Hope this helps! Let me know if there are any further questions or issues.

— @samliew

2 Likes
4

Amazing - thank you !!!

2 Likes