I’m trying to convert a PDF file to a base64 using the Power Automate flow below.

convert PDF to Base64

Update base64 column

Then I copied that base64 and pasted It into https://base64.guru/converter/decode/pdf It gives me an error, as shown in the below image.

enter image description here

when I try to convert the base64 string back to a PDF for display in the Power BI PDF viewer, I receive the following error message:

“The selected PDF document is not properly formatted to base64.”

Thank you in advance for your help!