Assistance with Automating Email Attachment Processing via Power Automate

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Posted on by EM-09071651-0

Hi,

I need help setting up a Power Automate flow with the following requirements:

Trigger: When a new email arrives with attachments (specifically PDFs).

Save Attachments: Automatically save the PDF attachments to a specific OneDrive folder.

AI Processing: Use the PDFs as input for a ChatGPT prompt (or an OpenAI action if available).

Response Handling: Capture ChatGPT's output and send it as an email response to the original sender or a specified recipient.

I would appreciate guidance or an example flow that could help me accomplish this.

Let me know if any connectors, licenses, or APIs are required beyond standard Power Automate and OneDrive.

Thank you!

Categories:

Power Automate Desktop

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Sam_Fawzi 750 Super User 2025 Season 2 on at

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Hey @

I'd be happy to help you set up your Power Automate flow. Before we proceed, I have a few questions to better understand your requirements:

Attachment Types: Are the PDFs invoices, legal documents, or another type?

Volume: How many emails with attachments do you expect to process regularly?

Response Handling: Do you want to send the ChatGPT output as an email response to the original sender, or is there a specific recipient you have in mind?

Attachment Details: How many pages do you expect in each PDF attachment? Are they typically in the same format, or do they vary by sender?

Additionally, please note that using OpenAI's API for processing will require an API key, and ensure you have the necessary licenses for Power Automate and OneDrive.

Looking forward to your response!

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Riyaz_riz11 3,876 Super User 2025 Season 2 on at

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Hi,

Create the Flow

Go to Power Automate.

New Automated Cloud Flow.

Trigger:

When a new email arrives (V3)

Configure:

Choose the mailbox.

Optionally set filters (e.g., From, Subject Contains).

Get Attachments

Add Action:

Get Attachment (Outlook)

This requires:

Message Id = Message Id from the trigger.

Attachment Id = Attachment Id (from a loop).

Tip: Use an Apply to Each over Attachments.

Filter Only PDFs

Inside the loop:

Condition:

Attachment Name ends with .pdf

Example:

endsWith(items('Apply_to_each_Attachment')?['Name'], '.pdf')

If Yes: proceed

If No: skip

Save PDF to OneDrive

Action:

Create File (OneDrive)

Folder Path = Your target folder.

File Name = Attachment Name.

File Content = ContentBytes from Get Attachment

This creates a physical file in OneDrive.

Extract PDF Text

How to do this?

Option A: AI Builder Read (No Code)

Use AI Builder: Extract text from PDF

If you have the license, it works out of the box.

Send Text to ChatGPT

If you have Azure OpenAI or OpenAI connector, add:

Action:

Create Completion

Model: gpt-3.5-turbo or gpt-4

Prompt: e.g.,

lease analyze this document and summarize the key points: [Your extracted text here

Capture the AI response.

Send Email with AI Response

Action:

Send an email (V2)

To: From (original sender) or any recipient.

Subject: e.g.,

Summary of your attachment: [Original Subject]

Body:

ere is the AI-generated summary of your PDF: [AI Response Text]

If I have answered your question, please mark it as the preferred solution ✅ . If you like my response, please give it a Thumbs Up 👍.
Regards,
Riyaz

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