---
title: "Custom page layouts in EPUB"
description: "Learn how to customize your EPUB page and margin sizes using the Export EPUB extension."
canonical_url: "https://tiptap.dev/docs/conversion/export/epub/page-layout"
---

# Custom page layouts in EPUB

Learn how to customize your EPUB page and margin sizes using the Export EPUB extension.

- **1. Activate trial or subscribe**

  Start a [free trial](https://cloud.tiptap.dev/v2?trial=true) or [subscribe to the Start plan](https://cloud.tiptap.dev/v2/billing) in your account.
- **2. Install from private registry**

  To install this frontend extension, authenticate to Tiptap's private npm registry by following the [setup guide](https://tiptap.dev/docs/guides/pro-extensions.md).

The EPUB Export extension supports custom page sizes and margins, allowing you to create documents with precise layouts that match your requirements. Whether you need A5 pages, custom paper sizes, or specific margin configurations, you can configure these settings directly in the extension.

## Page size configuration

Use the `pageSize` option to define custom page dimensions for your exported EPUB files. The page size configuration accepts width and height values with various measurement units.

### Supported units

All page size and margin measurements support the following units:

| Unit | Description           |
| ---- | --------------------- |
| `cm` | Centimeters (default) |
| `in` | Inches                |
| `pt` | Points                |
| `pc` | Picas                 |
| `mm` | Millimeters           |
| `px` | Pixels                |

### Configuration options

| Property | Type     | Description                                                                                          | Default    |
| -------- | -------- | ---------------------------------------------------------------------------------------------------- | ---------- |
| `width`  | `string` | The width of the page. Must be a positive number followed by a valid unit (cm, in, pt, pc, mm, px).  | `"21cm"`   |
| `height` | `string` | The height of the page. Must be a positive number followed by a valid unit (cm, in, pt, pc, mm, px). | `"29.7cm"` |

```js
import { ExportEpub } from '@tiptap-pro/extension-export-epub'

ExportEpub.configure({
  token: 'YOUR_TOKEN',
  pageSize: {
    width: '14.8cm',    // A5 width
    height: '21cm',     // A5 height
  },
})
```

## Page margins configuration

The `pageMargins` option allows you to set custom margins for all sides of your document pages. Unlike page sizes, top and bottom margins can accept negative values.

### Configuration options

| Property | Type     | Description                                                                                                         | Default |
| -------- | -------- | ------------------------------------------------------------------------------------------------------------------- | ------- |
| `top`    | `string` | The top margin of the page. Can be negative. Must be a number followed by a valid unit (cm, in, pt, pc, mm, px).    | `"1cm"` |
| `bottom` | `string` | The bottom margin of the page. Can be negative. Must be a number followed by a valid unit (cm, in, pt, pc, mm, px). | `"1cm"` |
| `left`   | `string` | The left margin of the page. Must be a positive number followed by a valid unit (cm, in, pt, pc, mm, px).           | `"1cm"` |
| `right`  | `string` | The right margin of the page. Must be a positive number followed by a valid unit (cm, in, pt, pc, mm, px).          | `"1cm"` |

```js
import { ExportEpub } from '@tiptap-pro/extension-export-epub'

ExportEpub.configure({
  token: 'YOUR_TOKEN',
  pageMargins: {
    top: '2cm',
    bottom: '2cm',
    left: '1.5cm',
    right: '1.5cm',
  },
})
```

## Complete example

Here's a complete example showing how to configure custom page layouts with the EPUB Export extension:

```js
import { ExportEpub } from '@tiptap-pro/extension-export-epub'

const editor = new Editor({
  extensions: [
    // Other extensions...
    ExportEpub.configure({
      token: 'YOUR_TOKEN',
      // A5 page size
      pageSize: {
        width: '14.8cm',
        height: '21cm',
      },
      // Custom margins
      pageMargins: {
        top: '2cm',
        bottom: '2cm',
        left: '2cm',
        right: '2cm',
      },
    }),
    // Other extensions...
  ],
})

// Export with custom layout
editor
  .chain()
  .exportEpub({
    onCompleteExport(result) {
      const url = URL.createObjectURL(result)
      const a = document.createElement('a')

      a.href = url
      a.download = 'custom-layout.epub'
      a.click()

      URL.revokeObjectURL(url)
    },
  })
  .run()
```

## Common page sizes

Here are some common page sizes you can use as reference:

| Format      | Width    | Height   |
| ----------- | -------- | -------- |
| **A4**      | `21cm`   | `29.7cm` |
| **A5**      | `14.8cm` | `21cm`   |
| **Letter**  | `8.5in`  | `11in`   |
| **Legal**   | `8.5in`  | `14in`   |
| **Tabloid** | `11in`   | `17in`   |

## Different measurement units

You can mix and match different units based on your preference:

```js
ExportEpub.configure({
  token: 'YOUR_TOKEN',
  // US Letter size in inches
  pageSize: {
    width: '8.5in',
    height: '11in',
  },
  // Margins in different units
  pageMargins: {
    top: '0.75in',    // Inches
    bottom: '72pt',   // Points (1 inch = 72 points)
    left: '2cm',      // Centimeters
    right: '20mm',    // Millimeters
  },
})
```

> **Unit consistency:**
>
> While you can mix different units, it's generally recommended to use consistent units throughout your configuration for better maintainability and clarity.