Process & summarize PDFs from email & messaging apps with OpenAI GPT

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Process PDFs from Gmail, Outlook, Telegram and WhatsApp with OpenAI Transform PDF documents into actionable insights automatically across multiple platforms. This workflow monitors emails and messa...

Best for

Document Extraction automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.gmail, n8n-nodes-base.microsoftoutlook, n8n-nodes-base.telegramtrigger, n8n-nodes-base.whatsapptrigger, n8n-nodes-base.if, n8n-nodes-base.extractfromfile, n8n-nodes-base.set

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by papcy.

Original n8n.io source

1.1 Workflow description

Title: Process & summarize PDFs from email & messaging apps with OpenAI GPT
Workflow name: Process & summarize PDFs from email & messaging apps with OpenAI GPT

Process PDFs from Gmail, Outlook, Telegram and WhatsApp with OpenAI

Transform PDF documents into actionable insights automatically across multiple platforms. This workflow monitors emails and messaging platforms for PDF attachments, extracts content, and delivers AI-powered summaries.

Who's it for

Business professionals, teams, and organizations needing automated PDF analysis from emails and messaging platforms. Perfect for processing contracts, reports, invoices, and documents requiring quick review.

How it works

Monitors Gmail and Outlook for PDF attachments while receiving PDFs via Telegram bot and WhatsApp Business API. Uses OpenAI to extract text and generate structured summaries with executive overviews, key points, important details, insights, and document type identification. Automatically routes summaries back to original senders.

Requirements

Gmail/Outlook OAuth2 credentials
Telegram Bot API token via @BotFather
WhatsApp Business API account
OpenAI API key

How to set up

Configure API credentials in respective nodes, update configuration variables for phone numbers and notification settings, then test with sample PDFs.

How to customize

Modify AI models, customize prompts, adjust response formatting, extend file support, add notification channels, or integrate with external systems.

Perfect for automating document workflows across communication channels.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 2 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 3 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - Gmail Email Monitor

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 8 - Outlook Email Monitor

Type / Role: n8n-nodes-base.microsoftOutlook - microsoftOutlook
Config choices: Version 2

Block 9 - Telegram Bot Receiver

Type / Role: n8n-nodes-base.telegramTrigger - telegramTrigger
Config choices: Version 1.2

Block 10 - WhatsApp Business Receiver

Type / Role: n8n-nodes-base.whatsAppTrigger - whatsAppTrigger
Config choices: Version 1

Block 11 - Validate Telegram PDF

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2

Block 12 - Validate WhatsApp PDF

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2

Block 13 - Extract PDF Text Content

Type / Role: n8n-nodes-base.extractFromFile - extractFromFile
Config choices: Version 1

Block 14 - Prepare Response Data

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.3

Block 15 - Route Response by Platform

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2

Block 16 - Send WhatsApp Summary

Type / Role: n8n-nodes-base.whatsApp - whatsApp
Config choices: Version 1

Block 17 - Send Telegram Summary

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.1

Block 18 - Notify Email PDF Processing

Type / Role: n8n-nodes-base.whatsApp - whatsApp
Config choices: Version 1

Block 19 - AI PDF Summarizer

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2

Block 20 - Check Email Attachments1

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2

Block 21 - Extract Gmail Data

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.3

Block 22 - Extract Outlook Data

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.3

Block 23 - Extract Telegram Data

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.3

Block 24 - Extract WhatsApp Data

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.3

Showing the first 24 of 28 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Process & summarize PDFs from email & messaging apps with OpenAI GPT
Complexity	advanced
Nodes	28
Categories	Document Extraction, AI Summarization
Author	papcy
Published	02 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/5592/5592.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Document Extraction workflows AI Summarization workflows

Frequently asked questions

What does Process & summarize PDFs from email & messaging apps with OpenAI GPT do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Document Extraction, AI Summarization use case.

papcy

5 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.gmail n8n-nodes-base.microsoftoutlook n8n-nodes-base.telegramtrigger n8n-nodes-base.whatsapptrigger n8n-nodes-base.if n8n-nodes-base.extractfromfile n8n-nodes-base.set

Complexity

advanced

Published 02 Jul 2025

Likes 0

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Install path: /data/workflows/5592/5592.json

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Process & summarize PDFs from email & messaging apps with OpenAI GPT

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Process PDFs from Gmail, Outlook, Telegram and WhatsApp with OpenAI

Who's it for

How it works

Requirements

How to set up

How to customize

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Sticky Note

Block 2 - Sticky Note1

Block 3 - Sticky Note2

Block 4 - Sticky Note3

Block 5 - Sticky Note4

Block 6 - Sticky Note5

Block 7 - Gmail Email Monitor

Block 8 - Outlook Email Monitor

Block 9 - Telegram Bot Receiver

Block 10 - WhatsApp Business Receiver

Block 11 - Validate Telegram PDF

Block 12 - Validate WhatsApp PDF

Block 13 - Extract PDF Text Content

Block 14 - Prepare Response Data

Block 15 - Route Response by Platform

Block 16 - Send WhatsApp Summary

Block 17 - Send Telegram Summary

Block 18 - Notify Email PDF Processing

Block 19 - AI PDF Summarizer

Block 20 - Check Email Attachments1

Block 21 - Extract Gmail Data

Block 22 - Extract Outlook Data

Block 23 - Extract Telegram Data

Block 24 - Extract WhatsApp Data

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions