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Generate document drafts from PDFs using Google Drive, GPT-4 & notifications

Michael GulloMichael Gullo
1517 views
2/3/2026
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Automate Drafts From Google Drive

This workflow automates the end-to-end process of extracting and summarizing information from PDFs stored in a specific Google Drive folder. When a new PDF or any binary data is added, the workflow is triggered and begins by downloading and processing the PDF to extract all available text. If multiple PDFs are detected, their content is aggregated into a single, combined dataset. This automation eliminates the time consuming task of manually reading, taking notes, and drafting documents. By removing this burden, users can focus on more meaningful tasks while the workflow handles the repetitive, tedious work.

The extracted content is then passed through an AI-powered information extractor that identifies key details such as names, dates, addresses, and any other structured data points the user wants to extract from the PDF. This step is highly customizable, allowing the user to define exactly what type of information should be extracted. While the workflow is designed to extract all available content from the PDF, specifying additional structured data points ensures that critical details are accurately captured. A second OpenAI Node uses the extracted information to draft a professional, formal summary suitable for documentation. This is the most important part of the workflow and can be fully customized to meet the user's specific needs. By editing the prompts, users can tailor the workflow to generate a wide variety of draft formats based on the extracted content.

The workflow then generates a new Google Document containing the full draft and composes an email summarizing the key points in 3 to 5 bullet points. This email is automatically sent to the designated recipient along with a direct link to the Google Doc. This solution is ideal for insurance, legal, or administrative use cases where timely, accurate extraction and reporting from incoming PDFs is essential.

How To Use The Workflow Step 1 - Place any binary data (e.g., PDF files) into the designated Google Drive folder.

Step 2 - The workflow will automatically download each PDF, extract the text, and if multiple PDFs are present combine them into a single dataset for analysis.

Step 3 - The OpenAI Draft Agent will analyze the extracted information, generate a formal draft, and create a Google Document. This document will be updated with the draft content and saved back into the same Google Drive folder.

Step 4 - An email will be sent to the designated recipient(s), including a summary of the draft and key extracted information, along with a link to view the Google Document.

Need Help? Have Questions? For consulting and support, or if you have questions, please feel free to connect with me on LinkedIn or email michael.gullo@outlook.com.

Generate Document Drafts from PDFs using Google Drive, GPT-4, and Notifications

This n8n workflow automates the process of extracting information from newly uploaded PDF documents in Google Drive, generating a document draft using an AI model (GPT-4), and then creating a Google Docs document and sending a notification via Gmail.

What it does

  1. Monitors Google Drive: Triggers when a new PDF file is uploaded to a specified folder in Google Drive.
  2. Extracts Text from PDF: Reads the content of the newly uploaded PDF file and extracts its text.
  3. Sets Document Context: Prepares the extracted text and file metadata for further processing by the AI.
  4. Extracts Key Information (Optional): Uses an AI-powered Information Extractor to identify and structure key data points from the PDF content. This step is commented out in the provided JSON but demonstrates a capability.
  5. Generates Document Draft with AI: Sends the extracted PDF content (and optionally, extracted information) to an OpenAI Chat Model (likely GPT-4 or similar) to generate a comprehensive document draft.
  6. Creates Google Docs File: Takes the AI-generated draft and creates a new Google Docs document in a specified Google Drive folder.
  7. Sends Email Notification: Notifies a designated recipient via Gmail about the new document draft, including a link to the newly created Google Docs file.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running n8n instance.
  • Google Drive Account: Configured with n8n credentials for monitoring a folder and creating new documents.
  • Google Docs Account: Integrated via Google Drive credentials.
  • Gmail Account: Configured with n8n credentials for sending email notifications.
  • OpenAI API Key: For the OpenAI Chat Model to generate document drafts.
  • Google OAuth2 Credentials: For Google Drive, Google Docs, and Gmail integrations.

Setup/Usage

  1. Import the workflow: Download the provided JSON and import it into your n8n instance.
  2. Configure Credentials:
    • Set up your Google OAuth2 credentials for Google Drive, Google Docs, and Gmail nodes.
    • Set up your OpenAI API Key credential for the OpenAI Chat Model node.
  3. Configure Google Drive Trigger (Node: "Google Drive Trigger"):
    • Specify the Folder ID in Google Drive that n8n should monitor for new PDF uploads.
    • Ensure the "File Type" is set to PDF.
  4. Configure Google Drive (Node: "Google Drive"):
    • Specify the Folder ID where the new Google Docs drafts should be created.
  5. Configure Gmail (Node: "Gmail"):
    • Set the "To" email address for notifications.
    • Customize the subject and body of the email as needed, using expressions to include the link to the new Google Docs file.
  6. Activate the workflow: Once all credentials and configurations are set, activate the workflow.

Now, whenever a new PDF file is uploaded to the specified Google Drive folder, the workflow will automatically process it, generate a draft, create a Google Doc, and send a notification.

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