This workflow follows the Form Trigger → HTTP Request 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 →
{
"name": "Subir_Docs/PDF_Final",
"nodes": [
{
"parameters": {
"formTitle": "Subir Documento para Contexto",
"formFields": {
"values": [
{
"fieldLabel": "Archivo ",
"fieldType": "file",
"fieldName": "archivo",
"multipleFiles": false,
"acceptFileTypes": ".pdf , .docx"
}
]
},
"options": {
"appendAttribution": false,
"buttonLabel": "Submit",
"respondWithOptions": {
"values": {
"formSubmittedText": "El archivo ha sido subido con exito"
}
},
"ignoreBots": true,
"useWorkflowTimezone": false,
"customCss": "/* Importamos la fuente Serif equilibrada */\n@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;1,500&family=Inter:wght@400;500&display=swap');\n\n:root {\n\t--font-family: 'Inter', sans-serif;\n\t--font-serif: 'Lora', serif;\n\t\n\t/* Paleta Bosque Nebuloso */\n\t--color-background: #e2e8e4; \n\t--color-card-bg: rgba(255, 255, 255, 0.7);\n\t--color-card-border: rgba(255, 255, 255, 0.5);\n\t--color-header: #2f3e36;\n\t--color-label: #4a5c52;\n\t--color-input-border: #b0bcba;\n\t--color-input-text: #2f3e36;\n\t--color-focus-border: #7ba08d;\n\t--color-submit-btn-bg: #5a7a68;\n\t--color-submit-btn-text: #ffffff;\n\n\t--border-radius-card: 16px;\n\t--border-radius-input: 8px;\n\t\n\t/* Ajuste de Dimensiones */\n\t--container-width: 500px; /* Ancho m\u00e1s contenido */\n}\n\n/* Fondo y centrado del formulario */\nbody {\n\tbackground: linear-gradient(135deg, #f0f4f2 0%, #e2e8e4 100%) !important;\n\tbackground-attachment: fixed !important;\n\tdisplay: flex !important;\n\talign-items: center !important; /* Centra verticalmente */\n\tjustify-content: center !important;\n\tmin-height: 100vh !important;\n\tmargin: 0 !important;\n\tpadding: 20px !important;\n}\n\n/* Ajuste del contenedor principal para eliminar espacio sobrante */\n.n8n-form-container {\n\twidth: 100% !important;\n\tmax-width: var(--container-width) !important;\n\tpadding-top: 0 !important; /* Quita el espacio superior excesivo */\n}\n\n/* Tarjeta con efecto niebla */\n.n8n-form-card {\n\tbackground-color: var(--color-card-bg) !important;\n\tbackdrop-filter: blur(10px);\n\t-webkit-backdrop-filter: blur(10px);\n\tborder: 1px solid var(--color-card-border) !important;\n\tborder-radius: var(--border-radius-card) !important;\n\tbox-shadow: 0 10px 30px rgba(47, 62, 54, 0.1) !important;\n\tmargin-bottom: 0 !important; /* Evita espacio abajo de la tarjeta */\n}\n\n/* T\u00edtulos y Etiquetas */\nh1, .n8n-form-header {\n\tfont-family: var(--font-serif) !important;\n\tfont-weight: 500 !important;\n\tcolor: var(--color-header) !important;\n\tmargin-bottom: 20px !important;\n}\n\nlabel, .n8n-form-label {\n\tfont-family: var(--font-serif) !important;\n\tfont-style: italic !important;\n\tcolor: var(--color-label) !important;\n}\n\n/* Estilo del input de archivo */\ninput[type=\"file\"] {\n\tbackground: rgba(255, 255, 255, 0.4) !important;\n\tborder: 1px dashed var(--color-input-border) !important;\n\tborder-radius: var(--border-radius-input) !important;\n\tpadding: 15px !important;\n}\n\ninput[type=\"file\"]::file-selector-button {\n\tbackground-color: var(--color-submit-btn-bg) !important;\n\tcolor: white !important;\n\tborder: none !important;\n\tpadding: 8px 16px !important;\n\tborder-radius: 6px !important;\n\tfont-family: var(--font-serif) !important;\n\tfont-style: italic !important;\n\tcursor: pointer;\n}\n\n/* Recordatorio sutil */\n.n8n-form-file-upload::after {\n\tcontent: \"Solo se admite un archivo (PDF o DOCX)\";\n\tdisplay: block;\n\tfont-size: 11px;\n\tmargin-top: 10px;\n\tfont-family: var(--font-serif);\n\tfont-style: italic;\n\tcolor: #7a8c82;\n\ttext-align: center;\n}\n\n/* Bot\u00f3n de env\u00edo */\n.n8n-form-submit-button {\n\tbackground-color: var(--color-submit-btn-bg) !important;\n\tfont-family: var(--font-serif) !important;\n\tfont-style: italic !important;\n\tborder-radius: var(--border-radius-input) !important;\n\tmargin-top: 10px !important;\n}\n\n/* Ocultar el footer de n8n para limpiar el dise\u00f1o (opcional) */\nfooter {\n display: none !important;\n}"
}
},
"type": "n8n-nodes-base.formTrigger",
"typeVersion": 2.5,
"position": [
-240,
-160
],
"id": "dd391007-4caf-4e15-ab34-34edba4ccc1a",
"name": "On form submission"
},
{
"parameters": {
"rules": {
"values": [
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 3
},
"conditions": [
{
"leftValue": "={{ $('On form submission').item.json.archivo.filename }}",
"rightValue": ".pdf",
"operator": {
"type": "string",
"operation": "endsWith"
},
"id": "6d062fd7-f515-4b3f-8dad-4b7b3b55ed51"
}
],
"combinator": "and"
}
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 3
},
"conditions": [
{
"id": "31085fb9-c272-4a5a-be20-ea80d1dbb1cc",
"leftValue": "={{ $('On form submission').item.json.archivo.filename }}",
"rightValue": ".docx",
"operator": {
"type": "string",
"operation": "endsWith"
}
}
],
"combinator": "and"
}
}
]
},
"options": {}
},
"type": "n8n-nodes-base.switch",
"typeVersion": 3.4,
"position": [
784,
-160
],
"id": "c3f024b2-0430-4923-bf4d-73cd38d358f3",
"name": "Switch"
},
{
"parameters": {
"operation": "pdf",
"binaryPropertyName": "archivo",
"options": {}
},
"type": "n8n-nodes-base.extractFromFile",
"typeVersion": 1.1,
"position": [
1024,
-160
],
"id": "ed87541b-1253-4091-943c-3bbaed2e2efa",
"name": "Extract from File"
},
{
"parameters": {},
"type": "n8n-nodes-base.merge",
"typeVersion": 3.2,
"position": [
1280,
-160
],
"id": "7f91e668-9019-4b39-804d-906784601e6e",
"name": "Merge"
},
{
"parameters": {
"operation": "executeQuery",
"query": "INSERT INTO documentos (nombre, tipo)\nVALUES ('{{ $('On form submission').item.json.archivo.filename }}', '{{ $('On form submission').item.json.archivo.mimetype }}')\nRETURNING id;",
"options": {}
},
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.6,
"position": [
1488,
-160
],
"id": "0cb2aec5-7ce4-4c22-981c-5be481d19082",
"name": "Execute a SQL query",
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"jsCode": "// El texto viene del nodo Extract from PDF\n// El id viene del Postgres insert (nodo anterior)\nconst documento_id = $input.first().json.id;\n\n// Referencia al nodo de extracci\u00f3n - ajusta el nombre exacto\nconst texto = $('Extract from File').item.json.text;\n\nconst chunks = [];\nconst tamano = 500;\nconst solapamiento = 50;\n\nfor (let i = 0; i < texto.length; i += tamano - solapamiento) {\n const chunk = texto.slice(i, i + tamano).trim();\n if (chunk.length > 50) {\n chunks.push({\n json: {\n contenido: chunk,\n documento_id: documento_id,\n posicion: chunks.length\n }\n });\n }\n}\n\nreturn chunks;"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1696,
-160
],
"id": "fb712451-eaea-472a-9f0b-abf3d580ae80",
"name": "Chunking"
},
{
"parameters": {
"jsCode": "const items = $input.all();\nconst result = [];\n\nfor (const item of items) {\n result.push({\n json: {\n documento_id: item.json.documento_id,\n contenido: item.json.contenido,\n embedding: JSON.stringify(item.json.data[0].embedding),\n metadata: JSON.stringify({ posicion: item.json.posicion })\n },\n pairedItem: item.pairedItem\n });\n}\n\nreturn result;"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
2112,
-160
],
"id": "2b14f0c3-6a48-49d5-837f-beeaa3b5fad9",
"name": "Formatear_pre_insert"
},
{
"parameters": {
"operation": "executeQuery",
"query": "INSERT INTO documentos_chunks (documento_id, contenido, embedding, metadata)\nVALUES (\n '{{ $('Chunking').item.json.documento_id }}'::UUID,\n '{{ $('Chunking').item.json.contenido }}',\n '{{ $json.embedding }}'::vector,\n '{{ $json.metadata }}'::jsonb\n);",
"options": {}
},
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.6,
"position": [
2320,
-160
],
"id": "855fcc51-0855-45c4-adfc-50e6d92c019b",
"name": "Insertar_embbedings_documentos_chunks",
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "executeQuery",
"query": "SELECT id FROM documentos \nWHERE nombre = '{{ $json.archivo.filename }}'\nLIMIT 1;",
"options": {}
},
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.6,
"position": [
-32,
-160
],
"id": "45a0fb2b-f46b-41d7-a54f-882e3d1c9162",
"name": "Revisar_doc_repetido",
"alwaysOutputData": true,
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "executeQuery",
"query": "DELETE FROM documentos \nWHERE id = '{{ $('Revisar_doc_repetido').item.json.id }}';",
"options": {}
},
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.6,
"position": [
432,
-160
],
"id": "20466519-2129-47fc-a3e7-bce654a3974e",
"name": "Borrar_documento_repetido",
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "executeQuery",
"query": "DELETE FROM documentos_chunks \nWHERE documento_id = '{{ $json.id }}';",
"options": {}
},
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.6,
"position": [
224,
-160
],
"id": "04cb65fb-302f-4eb7-b81a-68a05dc1e0f5",
"name": "Borrar_chunks_repetidos",
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"jsCode": "const formItem = $('On form submission').first();\n\nreturn [{\n json: formItem.json,\n binary: formItem.binary\n}];"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
592,
-160
],
"id": "06579b09-d3eb-4825-9e4f-4726d33b0c79",
"name": "Recuperar_binario"
},
{
"parameters": {
"resource": "execution",
"operation": "get",
"executionId": "={{ $execution.id }}",
"options": {},
"requestOptions": {}
},
"type": "n8n-nodes-base.n8n",
"typeVersion": 1,
"position": [
1024,
80
],
"id": "9adf953c-10ce-4086-ba10-b21a858cbfb0",
"name": "Get an execution",
"credentials": {
"n8nApi": {
"name": "<your credential>"
}
},
"disabled": true
},
{
"parameters": {
"method": "POST",
"url": "https://openrouter.ai/api/v1/embeddings",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "Bearer YOUR_API_KEY"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "model",
"value": "text-embedding-3-small"
},
{
"name": "input",
"value": "={{ $json.contenido }}"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
1904,
-160
],
"id": "87911ec8-477c-4544-8f86-09c89a715214",
"name": "Embeddings_Openrouter"
},
{
"parameters": {
"method": "POST",
"url": "https://api.cloudconvert.com/v2/jobs",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "Bearer YOUR_SUPABASE_KEY"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "{\n \"tasks\": {\n \"import-my-file\": {\n \"operation\": \"import/upload\"\n },\n \"convert-my-file\": {\n \"operation\": \"convert\",\n \"input\": \"import-my-file\",\n \"input_format\": \"docx\",\n \"output_format\": \"txt\"\n },\n \"export-my-file\": {\n \"operation\": \"export/url\",\n \"input\": \"convert-my-file\"\n }\n }\n}",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
208,
80
],
"id": "f3999165-015c-47c4-b632-eb254e903d4a",
"name": "Cloud_convert",
"disabled": true
},
{
"parameters": {
"method": "POST",
"url": "={{ $json.data.tasks[0].result.form.url }}",
"sendBody": true,
"contentType": "multipart-form-data",
"bodyParameters": {
"parameters": [
{
"name": "acl",
"value": "={{ $json.data.tasks[0].result.form.parameters.acl }}"
},
{
"name": "key",
"value": "={{ $json.data.tasks[0].result.form.parameters.key.replace('${filename}', $('On form submission').item.json.archivo.filename) }}"
},
{
"name": "success_action_status",
"value": "={{ $json.data.tasks[0].result.form.parameters.success_action_status }}"
},
{
"name": "X-Amz-Credential",
"value": "={{ $json.data.tasks[0].result.form.parameters['X-Amz-Credential'] }}"
},
{
"name": "X-Amz-Algorithm",
"value": "={{ $json.data.tasks[0].result.form.parameters['X-Amz-Algorithm'] }}"
},
{
"name": "X-Amz-Date",
"value": "={{ $json.data.tasks[0].result.form.parameters['X-Amz-Date'] }}"
},
{
"name": "Policy",
"value": "={{ $json.data.tasks[0].result.form.parameters.Policy }}"
},
{
"name": "X-Amz-Signature",
"value": "={{ $json.data.tasks[0].result.form.parameters['X-Amz-Signature'] }}"
},
{
"parameterType": "formBinaryData",
"name": "file",
"inputDataFieldName": "archivo"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
368,
80
],
"id": "39829f51-9c41-4b3b-9e73-d3fb76713892",
"name": "Subir_archivo_docs",
"disabled": true
},
{
"parameters": {
"url": "=https://api.cloudconvert.com/v2/jobs/{{ $('Cloud_convert').item.json.data.id }}",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "Bearer YOUR_SUPABASE_KEY"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"options": {
"response": {
"response": {
"responseFormat": "json"
}
}
}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.4,
"position": [
656,
80
],
"id": "d6074f7a-3127-47e5-897e-c87f4e2bcf67",
"name": "Esperar_conversion",
"disabled": true
},
{
"parameters": {},
"type": "n8n-nodes-base.wait",
"typeVersion": 1.1,
"position": [
512,
80
],
"id": "320dee86-5afe-4510-953e-0d59942d24c3",
"name": "Wait",
"disabled": true
}
],
"connections": {
"On form submission": {
"main": [
[
{
"node": "Revisar_doc_repetido",
"type": "main",
"index": 0
}
]
]
},
"Switch": {
"main": [
[
{
"node": "Extract from File",
"type": "main",
"index": 0
}
],
[]
]
},
"Extract from File": {
"main": [
[
{
"node": "Merge",
"type": "main",
"index": 0
}
]
]
},
"Merge": {
"main": [
[
{
"node": "Execute a SQL query",
"type": "main",
"index": 0
}
]
]
},
"Execute a SQL query": {
"main": [
[
{
"node": "Chunking",
"type": "main",
"index": 0
}
]
]
},
"Chunking": {
"main": [
[
{
"node": "Embeddings_Openrouter",
"type": "main",
"index": 0
}
]
]
},
"Formatear_pre_insert": {
"main": [
[
{
"node": "Insertar_embbedings_documentos_chunks",
"type": "main",
"index": 0
}
]
]
},
"Revisar_doc_repetido": {
"main": [
[
{
"node": "Borrar_chunks_repetidos",
"type": "main",
"index": 0
}
]
]
},
"Borrar_documento_repetido": {
"main": [
[
{
"node": "Recuperar_binario",
"type": "main",
"index": 0
}
]
]
},
"Borrar_chunks_repetidos": {
"main": [
[
{
"node": "Borrar_documento_repetido",
"type": "main",
"index": 0
}
]
]
},
"Recuperar_binario": {
"main": [
[
{
"node": "Switch",
"type": "main",
"index": 0
}
]
]
},
"Insertar_embbedings_documentos_chunks": {
"main": [
[]
]
},
"Embeddings_Openrouter": {
"main": [
[
{
"node": "Formatear_pre_insert",
"type": "main",
"index": 0
}
]
]
},
"Cloud_convert": {
"main": [
[
{
"node": "Subir_archivo_docs",
"type": "main",
"index": 0
}
]
]
},
"Subir_archivo_docs": {
"main": [
[
{
"node": "Wait",
"type": "main",
"index": 0
}
]
]
},
"Wait": {
"main": [
[
{
"node": "Esperar_conversion",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1",
"binaryMode": "separate",
"availableInMCP": false,
"timeSavedMode": "fixed",
"callerPolicy": "workflowsFromSameOwner",
"errorWorkflow": "Lg4ma3dxwZeqgxOJDE0ew"
},
"versionId": "1785d184-1db8-465b-a4fe-f21f23a0f6fb",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "IsFV7jiPIa-Sfdnp4N78f",
"tags": []
}
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.
n8nApipostgres
Pro
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About this workflow
Subir_Docs/PDF_Final. Uses formTrigger, postgres, n8n, httpRequest. Event-driven trigger; 18 nodes.
Source: https://github.com/sergioRancibia/n8n-automation-ai-agents-portfolio/blob/main/n8n-ai-automation-system/workflows/subir-pdf.json — original creator credit. Request a take-down →
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