Html-pptx module | docxtemplater

Important : This module only supports pptx (Powerpoint documents), not docx, see the html if you to include HTML inside Word documents.

This module currently supports:


<h1-h6> with some default sizes for each level, the sizes of the titles can be customized

 
<ul>, <ol> and <li> for ordered and unordered lists
 and 
<a href="URL">Linktext</a>

To insert HTML :

Any tag starting with ~ is used for inline HTML, such as : {~html} or {~inlineComment} which will use the "inlineComment" data
Any tag starting with ~~ is used for block HTML, such as : {~~html} or {~~styledTable} which will use the "styledTable" data

Usage (nodejs)

const HTMLPptxModule = require("docxtemplater-html-pptx-module");

const zip = new PizZip(content);
const doc = new Docxtemplater(zip, {
    modules: [new HTMLPptxModule({})],
}).render({ html: "<b>Hello</b>, Foo !" });

const buffer = doc.getZip().generate({
    type: "nodebuffer",
    compression: "DEFLATE",
});

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

Usage (browser)

<html>
    <script src="node_modules/docxtemplater/build/docxtemplater.js"></script>
    <script src="node_modules/pizzip/dist/pizzip.js"></script>
    <script src="node_modules/pizzip/vendor/FileSaver.js"></script>
    <script src="node_modules/pizzip/dist/pizzip-utils.js"></script>
    <script src="build/html-module.js"></script>
    <script>
        PizZipUtils.getBinaryContent(
            "examples/input.docx",
            function (error, content) {
                if (error) {
                    console.error(error);
                    return;
                }

                var zip = new PizZip(content);
                var doc = new docxtemplater(zip, {
                    modules: [
                        new DocxtemplaterPptxHtmlModule({}),
                    ],
                });

                doc.render({
                    html: "<p>Hello <b>John</b></p>",
                });
                var out = doc.getZip().generate({
                    type: "blob",
                    mimeType:
                        "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
                });
                saveAs(out, "generated.docx");
            }
        );
    </script>
</html>

Limitations

It is not possible to mix different types of HTML elements in a single shape.

In the PPTX format, everything is inside a "box" which is techically called a "shape" (XML tag <p:sp>) , and a box can contain either :

one or multiple paragraphs
one table
one shape
one image

The reason for that is that each box is statically positioned (x and y coordinate are set in the powerpoint document), so it is not possible to place a table and an image on the same tag for example because we do not know where we should place the second element.

In a pptx template, the tag {~~html} will be inside one particular box, so it can't generate multiple boxes (or they would overlap, which would be unreadable).

This is why one HTML tag : {~~html} will alway render one box, so for example the following HTML data would throw an error because it mixes tables and paragraphs :

<p>Hello</p>
<table>
  <tr>
    <td><p>Hello</p></td>
  </tr>
</table>
<p>Hello</p>

Options

It is possible to set options to the module in its constructor.

The options are as follows :

ignoreUnknownTags [default=false]: If this option is set to true, and the module finds an HTML tag that it doesn't handle, it will not fail but instead make as if the tag was of type ;
ignoreCssErrors [default=false]: If this option is set to true, all CSS errors are ignored and the library tries to parse the CSS with a best-effort algorithm;
styleSheet makes it possible to add style to all HTML tags that are inserted.

To ignore all unknown tags:

const doc = new Docxtemplater(zip, {
    modules: [
        new HTMLPptxModule({
            ignoreUnknownTags: true,
        }),
    ],
});

CHANGELOG

3.4.1

Correctly keep font-family of existing text used in the {~~html} tag.

Previously, the font-family was lost.

3.4.0

Add support for inline html tag using {~html} (block tag is with {~~html}).

Rename property this.prefix to this.blockPrefix.

3.3.1

Bugfix "Cannot read properties of undefined (reading 'forEach')", when using stylesheet with comments.

3.3.0

Make module compatible with docxtemplater@3.28.0. Please make sure to update docxtemplater to 3.28.0 at the same time you update this module. The internal change made is the use of the new matchers API which fixes bugs that were triggered depending on the order of the modules that are attached to the instance. Now the order of the modules should not matter as expected.

MultiError :
TypeError: Cannot read property 'length' of undefined
    at HtmlModule.hasListInSlideMaster (docxtemplater-html-pptx-module/es6/index.js:289:19)

Now, loops created with the slides module can contain html-pptx tags

3.1.4

Fix issue with css module :

Module not found: Error: Can't resolve 'fs' in '[...]\node_modules\css\lib\stringify'

Now, the module requires only the part that it uses, which removes this error.

ul li {
    -dxt-bullet-indent: 1in;
    -dxt-bullet-spacing: 1in;
}

Better handle margin-top/margin-bottom for li tags

Usage (nodejs)

Usage (browser)

Limitations

Options

CHANGELOG

3.4.1

3.4.0

3.3.1

3.3.0

3.2.5

3.2.4

3.2.3

3.2.2

3.2.1

3.2.0

3.1.6

3.1.5

3.1.4

3.1.3

3.1.2

3.1.1

3.1.0

3.0.2

3.0.1

3.0.0

Try the demos