Automatically Rename Gmail Attachments with GPT-4o and Save to Google Drive

Automatically Rename Gmail Attachments with AI and Save to Google Drive

Who is this for?

This workflow is perfect for anyone who regularly receives important email attachments like reports, invoices, or PDFs and wants them:

Renamed using clean AI generated filenames
Automatically saved to a specific Google Drive folder
Neatly organized without manual work

It is ideal for freelancers, business owners, accountants, and productivity enthusiasts.

What does it solve?

Manually naming and organizing email attachments takes time and often leads to messy files.

This workflow solves that by:

Automatically downloading unread Gmail attachments
Using AI to understand the content and generate clean, consistent filenames
Saving the renamed files to your chosen Google Drive folder
Marking emails as read after processing

No more confusing filenames like "Attachment 1.pdf".

How it works

The workflow runs on a scheduled interval (every hour by default)
It checks Gmail for any unread emails with attachments.
For each email: Downloads attachments
Extracts and reads PDF content
Uses AI to generate a new filename in the format: YYYYMMDD-keyword-summary.pdf
Saves the file to Google Drive with the new name
Marks the email as read to avoid duplicates

How to set up?

Connect these accounts in your n8n credentials: Gmail (OAuth2)
Google Drive (OAuth2)
OpenAI (API key)

Update the folder URL in the Google Drive node to your target folder
Optional: adjust the trigger interval if you want it to run more or less often

How to customize this workflow to your needs

Change the AI prompt to create different naming rules, such as including sender or topic
Dynamically set Drive folders based on email sender or subject