@apostrophecms/font-size

Adds a free-form font size tool to the ApostropheCMS rich text editor toolbar. Editors select text and set its size in pixels, either by typing a value or picking a preset. The size is stored as inline font-size styling on a <span>, the same way the core color tool stores its value.

This feature is intentionally shipped as a separate, installable module rather than in Apostrophe core, so it is only present in the projects that want it.

When to use this module

If SEO is your primary concern, offer various heading levels instead, optionally with multiple CSS classes for each level and even the paragraph element itself. This yields the best SEO outcome because Google is looking for semantic markup, not explicit font sizes.

However, if you and your customers need the flexibility to match exact font sizes or change the font size in mid-line, this module is right for you.

Installation

npm install @apostrophecms/font-size

Then enable it in app.js:

require('apostrophe')({
  shortName: 'my-project',
  modules: {
    '@apostrophecms/font-size': {}
  }
});

The module improves @apostrophecms/rich-text-widget, so there is nothing else to wire up.

If you are not explicitly configuring the toolbars of your rich text widgets... that's it! The feature is available by default. If you are configuring each rich text widget toolbar explicitly, read on.

Options

This module improves @apostrophecms/rich-text-widget. An Apostrophe improvement has no separate existence — it merges into the module it improves — so it cannot be configured under its own name. Set these options on @apostrophecms/rich-text-widget, not on @apostrophecms/font-size:

modules: {
  '@apostrophecms/font-size': {},
  // Configure the rich-text-widget module, NOT
  // the font-size module
  '@apostrophecms/rich-text-widget': {
    options: {
      fontSizes: [ 14, 16, 20, 28, 40 ],
      addFontSizeToDefaultToolbar: false
    }
  }
}

| Option | Default | Description | | --- | --- | --- | | fontSizes | [ 12, 14, 16, 18, 24, 32, 48 ] | Preset pixel sizes offered as quick choices. The numeric input remains free-form. Set to [] for free-form only. | | addFontSizeToDefaultToolbar | true | Whether to add size to the rich text default toolbar. Set to false to make the tool available but opt in per area via the toolbar option. |

To offer the tool only in specific widgets, set addFontSizeToDefaultToolbar: false and add 'size' to each widget's toolbar array.

How it works

• A tiptap extension (ui/apos/tiptap-extensions/FontSize.js) adds a fontSize attribute to the shared textStyle mark and provides setFontSize / unsetFontSize commands.
• A Vue toolbar component (ui/apos/components/AposTiptapFontSize.vue) provides the popover with the numeric input and presets.
• The module extends the widget's sanitize-html allowlists so that <span style="font-size: ...px"> survives sanitization — only pixel values are permitted, and only where the size tool is enabled.