@michael_ting/node-red-pdf2base64

This node converts a PDF file to a PNG image and outputs the image as a Base64 encoded string.

Inputs

msg.path : The path to the PDF file to be converted.

Outputs

payload : The Base64 encoded PNG image.

Example

Inject a message with the msg.path set to the path of the PDF file, and connect it to this node. The output will be the Base64 encoded PNG image.

Usage

• Open your Node-RED editor.
• Drag and drop the pdf-to-png node from the palette to your workspace.
• You can also pass the PDF path as the payload of the incoming message.
• Connect the pdf-to-png node to other nodes as needed (e.g., an inject node to trigger the conversion and a debug node to see the output).
• Deploy your flow.

Example Flow

Here is an example flow to demonstrate the usage of the pdf2png node:

[
    {
        "id": "e2f9b8c3.7c5a68",
        "type": "inject",
        "z": "b3b4b9c8.9b4a88",
        "name": "Inject PDF Path",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "/path/to/your/pdf/file.pdf",
        "payloadType": "str",
        "x": 150,
        "y": 100,
        "wires": [
            [
                "4f7a0b2d.8b9f64"
            ]
        ]
    },
    {
        "id": "4f7a0b2d.8b9f64",
        "type": "pdf2png",
        "z": "b3b4b9c8.9b4a88",
        "name": "Convert PDF to PNG",
        "path": "",
        "x": 350,
        "y": 100,
        "wires": [
            [
                "d3f6b8b3.9b5a68"
            ]
        ]
    },
    {
        "id": "d3f6b8b3.9b5a68",
        "type": "debug",
        "z": "b3b4b9c8.9b4a88",
        "name": "Debug Output",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "x": 550,
        "y": 100,
        "wires": []
    }
]