How to Handle Base64 Encoded Documents in Your Zapier Workflows

The Problem

• DocuSign webhook sends a string like "JVBERi0xLjcKC..."

• Can't directly attach these to your systems

• Need actual PDFs for your records

Three Solutions (From Quick to Best)

1. Quick Fix Using PDF.co:

Trigger: Document signed
Action 1: Convert Base64 to PDF using PDF.co
Action 2: Forward converted file
Note: May affect document formatting

1. Reliable Google Drive Method:

Trigger: Document signed
Action 1: Create Google Drive file
    - Content: Base64 string
    - MIME type: application/pdf
Action 2: Download converted file
Action 3: Forward to final destination

1. Best Solution:

• Switch to SignWell or similar system

• Get direct file access without Base64 encoding

• Simpler integration

• Better formatting reliability

Error Handling

• Store Base64 string temporarily

• Set up conversion error notifications

• Add retry logic for failed conversions

Need support setting this up? We can help!