# PDF Ebook Navigation Ebook navigation demo with chapter/section jumps and return-to-top links > Canonical page: https://elysiatools.com/en/tools/pdf-ebook-navigation - **Category:** Document Tools - **Keywords:** pdf, ebook, navigation, chapters, sections, internal-links ## Overview Build a navigable ebook-style PDF with internal links. **Includes:** - Homepage chapter and section jump list - Return-to-top button on every page ## Inputs - **Title** (text) - **Book JSON** (textarea): \[ { "title": "Chapter 1 - Foundations", "sections": \[ { "title": "1.1 Scope", "content": "This section introduces scope and assumptions for the guide." }, { "title": "1.2 Terms", "content": "Defines key terms used throughout this e-book." } \] }, { "title": "Chapter 2 - Implementation", "sections": \[ { "title": "2.1 Workflow", "content": "Describes implementation workflow and handoff points." }, { "title": "2.2 Validation", "content": "Covers validation and release checklist." } \] } \] - **Page Size** (select) - **Landscape** (checkbox) - **Page Margin** (number) - **Body Font Size** (number) - **Line Height** (number) ## When to use - When you need to organize long-form documentation into a structured, easy-to-navigate PDF format. - When creating digital handbooks or manuals that require quick access to specific chapters from a central homepage. - When you want to improve reader experience in lengthy documents by adding persistent navigation controls. ## How it works - Enter your ebook title and define your content structure using the Book JSON format, specifying chapters and their corresponding sections. - Customize the document layout by selecting your preferred page size, orientation, and margin settings. - Adjust typography settings, including body font size and line height, to ensure optimal readability. - Generate the PDF to receive a document with a built-in interactive table of contents and navigation links. ## Use cases - Creating internal company operations handbooks with quick-reference sections. - Compiling technical documentation or user guides that require frequent navigation between chapters. - Developing interactive educational materials or study guides for students. ## Frequently asked questions ### Can I customize the chapter titles? Yes, you can define custom titles for every chapter and section within the Book JSON input. ### Does the tool support both A4 and Letter page sizes? Yes, you can select either A4 or Letter format in the page size settings. ### Are the navigation links clickable in the final PDF? Yes, the tool automatically generates internal hyperlinks that allow readers to jump between sections and return to the top of the page. ### Can I change the font size of the ebook content? Yes, you can adjust the body font size between 10 and 16 points to suit your design needs. ### Is it possible to create a landscape-oriented ebook? 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