Open source docxtemplater image module

This repository holds a updated version of docxtemplater image module.

This package is open source. There is also a paid version maintained by docxtemplater author.

Note this version is compatible with docxtemplater 3.x.

Installation

You first need to install docxtemplater by following its installation guide.

For Node.js install this package

npm install open-docxtemplater-image-module

For the browser find builds in build/ directory.

Usage

To render an image, your docx or pptx template should contain the text: {%image}

//Node.js example
var ImageModule = require('open-docxtemplater-image-module');

//Below the options that will be passed to ImageModule instance
var opts = {}
opts.centered = false; //Set to true to always center images
opts.fileType = "docx"; //Or pptx

//Pass your image loader
opts.getImage = function(tagValue, tagName) {
    //tagValue is 'examples/image.png'
    //tagName is 'image'
    return fs.readFileSync(tagValue);
}

//Pass the function that return image size
opts.getSize = function(img, tagValue, tagName) {
    //img is the image returned by opts.getImage()
    //tagValue is 'examples/image.png'
    //tagName is 'image'
    //tip: you can use node module 'image-size' here
    return [150, 150];
}

var imageModule = new ImageModule(opts);

var zip = new JSZip(content);
var doc = new Docxtemplater()
    .attachModule(imageModule)
    .loadZip(zip)
    .setData({image: 'examples/image.png'})
    .render();

var buffer = doc
        .getZip()
        .generate({type:"nodebuffer"});

fs.writeFile("test.docx",buffer);

Some notes regarding the template:

• docx files: the placeholder {%image} must be in a dedicated paragraph.
• pptx files: the placeholder {%image} must be in a dedicated text cell.

Centering images

You can center all images using either passing the option opts.centered = true or one by one using {%%image} instead of {%image} in your templates.

In pptx generated documents, images are centered vertically and horizontally relative to the parent cell.