Rishabh Dugar This workflow corresponds to n8n.io template #14998 — we link there as the canonical source.
This workflow follows the Google Drive → Google Drive Trigger recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"id": "4rnDjMpKVIwOEVr7",
"name": "Auto Sign PDF in Google Drive",
"tags": [],
"nodes": [
{
"id": "cd55bdb7-757e-4967-9290-8d36a222807c",
"name": "Google Drive Trigger",
"type": "n8n-nodes-base.googleDriveTrigger",
"position": [
736,
160
],
"parameters": {
"event": "fileCreated",
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"mode": "list",
"value": "YOUR_TRIGGER_FOLDER_ID",
"cachedResultUrl": "",
"cachedResultName": "E-Sign Document"
}
},
"typeVersion": 1
},
{
"id": "b99bb23c-9084-46f4-9537-8d02281c3d98",
"name": "Download file",
"type": "n8n-nodes-base.googleDrive",
"position": [
1024,
160
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"typeVersion": 3
},
{
"id": "2a115997-732d-4926-b0c5-849478312bd6",
"name": "Config",
"type": "n8n-nodes-base.set",
"position": [
1264,
160
],
"parameters": {
"values": {
"number": [
{
"name": "sign_x",
"value": 430
},
{
"name": "sign_y",
"value": 20
}
],
"string": [
{
"name": "signature_url",
"value": "YOUR_SIGNATURE_URL"
},
{
"name": "output",
"value": "drive"
},
{
"name": "email"
}
]
},
"options": {}
},
"typeVersion": 2
},
{
"id": "33d7e7fc-6d90-442c-914e-bbfd8cf7212d",
"name": "Is PDF?",
"type": "n8n-nodes-base.if",
"position": [
1472,
160
],
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $binary.data.fileExtension }}",
"value2": "pdf"
}
]
}
},
"typeVersion": 1
},
{
"id": "c2cb20cf-56aa-4ad2-91a9-ba50f8b0b5f4",
"name": "Sign a PDF with a signature image",
"type": "n8n-nodes-pdf-api-hub.pdfSplitMerge",
"position": [
1680,
128
],
"parameters": {
"sign_x": "={{ $json.sign_x }}",
"sign_y": "={{ $json.sign_y }}",
"resource": "watermark",
"sign_position": "custom",
"sign_signature_url": "={{ $json.signature_url }}",
"signAdvancedOptions": {},
"sign_pdf_input_type": "file"
},
"typeVersion": 1
},
{
"id": "c943cd80-2e5b-4cd8-b2bf-736568aa239a",
"name": "Upload file",
"type": "n8n-nodes-base.googleDrive",
"position": [
1968,
144
],
"parameters": {
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive",
"cachedResultName": "My Drive"
},
"options": {},
"folderId": {
"__rl": true,
"mode": "list",
"value": "YOUR_UPLOAD_FOLDER_ID",
"cachedResultUrl": "",
"cachedResultName": "Signed PDFs"
}
},
"typeVersion": 3
},
{
"id": "7d389e4e-941b-472f-b974-4cf73816e6b2",
"name": "Log",
"type": "n8n-nodes-base.set",
"position": [
2240,
144
],
"parameters": {
"values": {
"string": [
{
"name": "status",
"value": "signed"
},
{
"name": "file",
"value": "={{ $json.name }}"
}
]
},
"options": {}
},
"typeVersion": 2
},
{
"id": "d1395fa6-6e54-4cf0-ad73-8dafb6055f8f",
"name": "Sticky Note - Folders",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
0
],
"parameters": {
"color": 4,
"width": 596,
"height": 420,
"content": "Automatically signs PDFs dropped into a Google Drive folder.\nIt downloads the file, checks if it\u2019s a PDF, adds a signature image at set coordinates, and then either uploads the signed file back to Drive.\n\n## \ud83d\udcc2 Folder Setup\n\n- **Trigger folder** \u2192 Set YOUR_TRIGGER_FOLDER_ID\n- **Upload folder** \u2192 Set YOUR_UPLOAD_FOLDER_ID\n\n## \ud83d\udd0c Credentials Needed\n\n1. Google Drive OAuth2\n2. PDF API Hub (https://pdfapihub.com)\n\n## \ud83d\udd8a Signature\n\n- Set YOUR_SIGNATURE_URL to your hosted signature image\n"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"binaryMode": "separate",
"executionOrder": "v1"
},
"versionId": "dae044bf-ffae-4568-b89e-d0ba0bbe9030",
"connections": {
"Config": {
"main": [
[
{
"node": "Is PDF?",
"type": "main",
"index": 0
}
]
]
},
"Is PDF?": {
"main": [
[
{
"node": "Sign a PDF with a signature image",
"type": "main",
"index": 0
}
]
]
},
"Upload file": {
"main": [
[
{
"node": "Log",
"type": "main",
"index": 0
}
]
]
},
"Download file": {
"main": [
[
{
"node": "Config",
"type": "main",
"index": 0
}
]
]
},
"Google Drive Trigger": {
"main": [
[
{
"node": "Download file",
"type": "main",
"index": 0
}
]
]
},
"Sign a PDF with a signature image": {
"main": [
[
{
"node": "Upload file",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
Automatically signs PDF documents the moment they land in a Google Drive folder — no manual steps needed. The signed output is routed to a Drive folder. Google Drive Trigger watches a folder every minute for newly created files Download file fetches the file from Drive into the…
Source: https://n8n.io/workflows/14998/ — original creator credit. Request a take-down →
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