Aashit Sharma This workflow corresponds to n8n.io template #4763 — we link there as the canonical source.
This workflow follows the Gmail → Google Drive recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"nodes": [
{
"id": "76600f2a-f77c-4c95-8df6-e4d44a2d9e9e",
"name": "Information Extractor",
"type": "@n8n/n8n-nodes-langchain.informationExtractor",
"position": [
1420,
40
],
"parameters": {},
"typeVersion": 1
},
{
"id": "c96acdd1-a755-4700-86b5-c29e8cb5d32d",
"name": "Send Email",
"type": "n8n-nodes-base.gmail",
"position": [
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],
"parameters": {},
"typeVersion": 2.1
},
{
"id": "ef869446-c764-4957-8c27-4f51410c80c9",
"name": "No Operation, do nothing",
"type": "n8n-nodes-base.noOp",
"position": [
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],
"parameters": {},
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},
{
"id": "8e257d7c-bd82-44c4-901f-1b35d6ed1033",
"name": "Ollama Model",
"type": "@n8n/n8n-nodes-langchain.lmOllama",
"position": [
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],
"parameters": {},
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},
{
"id": "2e5babac-d216-48d5-97c5-7b528078a52a",
"name": "Postgres PGVector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStorePGVector",
"position": [
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],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "0348c94a-d362-4c1f-8679-3d4e0a42ddfb",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
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],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "fc19ba2d-a2ee-424b-a2f8-49690f1a2f74",
"name": "Google Drive Trigger - file creation",
"type": "n8n-nodes-base.googleDriveTrigger",
"position": [
0,
0
],
"parameters": {},
"typeVersion": 1
},
{
"id": "f081fb04-9a51-42f5-8664-9fd866de9cf1",
"name": "Download Binary - file",
"type": "n8n-nodes-base.googleDrive",
"position": [
220,
0
],
"parameters": {},
"typeVersion": 3
},
{
"id": "470c9772-00cf-420e-876f-7efad7274ca9",
"name": "Extract from PDF",
"type": "n8n-nodes-base.extractFromFile",
"position": [
800,
20
],
"parameters": {},
"typeVersion": 1
},
{
"id": "1cc7eae0-ccab-4c8a-a469-b27a7057d22a",
"name": "Create Email Agent",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
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],
"parameters": {},
"typeVersion": 1.8
},
{
"id": "42588358-40ba-46f7-bb97-38c67c676901",
"name": "Update DB - spreadsheet",
"type": "n8n-nodes-base.googleSheets",
"position": [
1100,
600
],
"parameters": {},
"typeVersion": 4.5
}
],
"connections": {
"Send Email": {
"main": [
[
{
"node": "No Operation, do nothing",
"type": "main",
"index": 0
}
]
]
},
"Ollama Model": {
"ai_languageModel": [
[
{
"node": "Information Extractor",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Extract from PDF": {
"main": [
[
{
"node": "Information Extractor",
"type": "main",
"index": 0
}
]
]
},
"Create Email Agent": {
"main": [
[
{
"node": "Send Email",
"type": "main",
"index": 0
}
]
]
},
"Information Extractor": {
"main": [
[
{
"node": "Update DB - spreadsheet",
"type": "main",
"index": 0
}
]
]
},
"Download Binary - file": {
"main": [
[
{
"node": "Extract from PDF",
"type": "main",
"index": 0
},
{
"node": "Update DB - spreadsheet",
"type": "main",
"index": 0
}
]
]
},
"Postgres PGVector Store": {
"ai_tool": [
[
{
"node": "Create Email Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Update DB - spreadsheet": {
"main": [
[
{
"node": "Create Email Agent",
"type": "main",
"index": 0
}
]
]
},
"Google Drive Trigger - file creation": {
"main": [
[
{
"node": "Download Binary - file",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
Built by Setidure Technologies This smart n8n automation extracts invoice details from PDF files uploaded to Google Drive using AI, logs them to a Google Sheet, and notifies the billing team via email — all without manual intervention.
Source: https://n8n.io/workflows/4763/ — original creator credit. Request a take-down →
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