Convert HTML to PDF and Compress Files with Customjs API

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 →

{
  "nodes": [
    {
      "id": "b962ef3d-b0ad-4b21-bb15-61b6521bfd03",
      "name": "HTML to PDF",
      "type": "@custom-js/n8n-nodes-pdf-toolkit.html2Pdf",
      "position": [
        220,
        0
      ],
      "parameters": {
        "htmlInput": "<h1>Hello World</h1>"
      },
      "credentials": {
        "customJsApi": {
          "name": "<your credential>"
        }
      },
      "notesInFlow": false,
      "typeVersion": 1
    },
    {
      "id": "988f427e-7eca-43e5-a77d-c69a92ec6158",
      "name": "Compress PDF file",
      "type": "@custom-js/n8n-nodes-pdf-toolkit.CompressPDF",
      "position": [
        460,
        0
      ],
      "parameters": {},
      "credentials": {
        "customJsApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "bbbf9fb1-2fc2-4de1-9854-149b63c7070c",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        0,
        100
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "492b07d3-4643-4d1e-acbb-b0a7b7fde350",
      "name": "Compress PDF file1",
      "type": "@custom-js/n8n-nodes-pdf-toolkit.CompressPDF",
      "position": [
        460,
        200
      ],
      "parameters": {
        "resource": "url",
        "field_name": "={{ $json.path }}"
      },
      "credentials": {
        "customJsApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "d60193ff-0bf6-4692-83e2-d0e1e59c5656",
      "name": "Set PDF URL",
      "type": "n8n-nodes-base.code",
      "position": [
        220,
        200
      ],
      "parameters": {
        "jsCode": "return {\"json\": {\"path\": \"https://www.nlbk.niedersachsen.de/download/164891/Test-pdf_3.pdf.pdf\"}};"
      },
      "typeVersion": 2
    },
    {
      "id": "c68fc714-fc5a-456d-9126-ccbcfedce3ca",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        140,
        -100
      ],
      "parameters": {
        "color": 4,
        "height": 260,
        "content": "### HTML to PDF\n- Request HTML Data\n- Convert HTML to PDF"
      },
      "typeVersion": 1
    },
    {
      "id": "5388484e-5b74-4ece-90a0-75fc3d9963b5",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        380,
        -100
      ],
      "parameters": {
        "color": 5,
        "width": 260,
        "height": 260,
        "content": "### Compress Pages from PDF\n- Compress PDF as a binary file."
      },
      "typeVersion": 1
    },
    {
      "id": "014c6536-0270-4ac7-881a-4334816a9ffb",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        140,
        160
      ],
      "parameters": {
        "color": 3,
        "height": 260,
        "content": "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n### Set PDF URL\n- Request PDF from URL."
      },
      "typeVersion": 1
    },
    {
      "id": "f6e18c8b-3109-414b-a539-dbb586d6e75e",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        380,
        160
      ],
      "parameters": {
        "color": 2,
        "width": 260,
        "height": 260,
        "content": "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n### Compress Pages from PDF\n- Compress PDF as a binary file."
      },
      "typeVersion": 1
    }
  ],
  "connections": {
    "HTML to PDF": {
      "main": [
        [
          {
            "node": "Compress PDF file",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set PDF URL": {
      "main": [
        [
          {
            "node": "Compress PDF file1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Compress PDF file": {
      "main": [
        []
      ]
    },
    "When clicking \u2018Test workflow\u2019": {
      "main": [
        [
          {
            "node": "HTML to PDF",
            "type": "main",
            "index": 0
          },
          {
            "node": "Set PDF URL",
            "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.

• customJsApi

About this workflow

This n8n template demonstrates how to convert HTML into a PDF, compress the generated PDF, and return it as a binary response using the PDF Toolkit from www.customjs.space.

Source: https://n8n.io/workflows/3869/ — original creator credit. Request a take-down →

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