Jitesh Dugar This workflow corresponds to n8n.io template #12544 — we link there as the canonical source.
This workflow follows the Google Drive → Slack recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"meta": {
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "4a011d72-5efd-4489-8371-478c0906dbf9",
"name": "Processing Sticky",
"type": "n8n-nodes-base.stickyNote",
"position": [
656,
1392
],
"parameters": {
"color": 7,
"width": 780,
"height": 380,
"content": "### \u2699\ufe0f Processing & Consolidation\nNodes grouped here handle the downloading, batching, and merging of validated binary data."
},
"typeVersion": 1
},
{
"id": "2e6c337f-1c68-4f86-9b7c-93276777af97",
"name": "Merge multiple PDFS into one",
"type": "n8n-nodes-htmlcsstopdf.htmlcsstopdf",
"position": [
1120,
1536
],
"parameters": {
"resource": "pdfManipulation"
},
"credentials": {
"htmlcsstopdfApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "4ad15d38-d0f0-4446-85e6-a06c37aee070",
"name": "Trigger: Monthly on the 1st1",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
32,
1552
],
"parameters": {
"rule": {
"interval": [
{
"field": "months"
}
]
}
},
"typeVersion": 1.1
},
{
"id": "06d90181-4b77-4a42-b573-37d8c8a0b833",
"name": "List Financial PDFs from Drive1",
"type": "n8n-nodes-base.googleDrive",
"position": [
256,
1552
],
"parameters": {
"resource": "folder",
"operation": "list"
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "46680caa-e991-46b7-a0ef-15d874749aea",
"name": "Validate File Format (PDF only)1",
"type": "n8n-nodes-base.if",
"position": [
480,
1552
],
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $json.mimeType }}",
"value2": "application/pdf"
}
]
}
},
"typeVersion": 1
},
{
"id": "0b886372-f371-496e-be0f-5f0300d5f5c0",
"name": "Download Documents for Processing1",
"type": "n8n-nodes-base.googleDrive",
"position": [
704,
1536
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "023d1e62-46f2-423b-8790-c8d225bfdd2c",
"name": "Batch Files for Merging1",
"type": "n8n-nodes-base.aggregate",
"position": [
912,
1536
],
"parameters": {
"options": {},
"fieldsToAggregate": {
"fieldToAggregate": [
{
"fieldToAggregate": "data"
}
]
}
},
"typeVersion": 1
},
{
"id": "12d1459a-2963-4e1f-bbff-e0ef69b73fe6",
"name": "Upload Consolidated Master Report1",
"type": "n8n-nodes-base.googleDrive",
"position": [
1360,
1536
],
"parameters": {
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive"
},
"options": {},
"folderId": {
"__rl": true,
"mode": "list",
"value": "root"
}
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "49317e2c-6952-4d1e-96c0-c0843d03620c",
"name": "Notify Finance Team (Slack)1",
"type": "n8n-nodes-base.slack",
"position": [
1584,
1536
],
"parameters": {
"text": "=\u2705 *Monthly Finance Bundle Generated* for {{$now.setZone('America/New_York').toFormat('MMMM yyyy')}}\n\nYour consolidated report is now available in Drive.\nFile: `{{ $node[\"Merge multiple PDFS into one\"].json.fileName }}`",
"user": {
"__rl": true,
"mode": "list",
"value": ""
},
"select": "user",
"otherOptions": {},
"authentication": "oAuth2"
},
"credentials": {
"slackOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "dc04a0ed-89ed-4a50-94e1-d3e2901fc775",
"name": "Main Documentation1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-16,
944
],
"parameters": {
"width": 460,
"height": 420,
"content": "## How it works\nThis workflow automates the gathering and merging of financial records. It triggers monthly, scans a specific Google Drive folder for PDF files, and validates the file types to prevent errors. All identified PDFs are then merged into a single \"Master Report\" using the HTML/CSS to PDF service and uploaded back to Drive. Finally, it sends a formatted notification to the finance team via Slack.\n\n## Setup steps\n1. **Google Drive**: Connect your account and select the folder containing your docs.\n2. **HTML/CSS to PDF**: Add API credentials to the merge node.\n3. **Slack**: Choose the #finance-dept channel for notifications.\n4. **Time-stamping**: The workflow uses Luxon expressions `{{$now.format('MMMM')}}` to automatically label reports by current month."
},
"typeVersion": 1
}
],
"connections": {
"Batch Files for Merging1": {
"main": [
[
{
"node": "Merge multiple PDFS into one",
"type": "main",
"index": 0
}
]
]
},
"Merge multiple PDFS into one": {
"main": [
[
{
"node": "Upload Consolidated Master Report1",
"type": "main",
"index": 0
}
]
]
},
"Trigger: Monthly on the 1st1": {
"main": [
[
{
"node": "List Financial PDFs from Drive1",
"type": "main",
"index": 0
}
]
]
},
"List Financial PDFs from Drive1": {
"main": [
[
{
"node": "Validate File Format (PDF only)1",
"type": "main",
"index": 0
}
]
]
},
"Validate File Format (PDF only)1": {
"main": [
[
{
"node": "Download Documents for Processing1",
"type": "main",
"index": 0
}
]
]
},
"Download Documents for Processing1": {
"main": [
[
{
"node": "Batch Files for Merging1",
"type": "main",
"index": 0
}
]
]
},
"Upload Consolidated Master Report1": {
"main": [
[
{
"node": "Notify Finance Team (Slack)1",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
googleDriveOAuth2ApihtmlcsstopdfApislackOAuth2Api
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About this workflow
Streamline your month-end accounting processes with this enterprise-grade automation designed to aggregate, validate, and merge fragmented financial documents into a single, professional reporting bundle. This workflow transforms manual document chaos into a structured,…
Source: https://n8n.io/workflows/12544/ — original creator credit. Request a take-down →
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