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iOS and Android apps

Open downloaded book files on a phone

Understand why PDF, EPUB and DOCX can look different in mobile preview apps.

4 min readUpdated 2026-07-18

60-second summary

Quick answer

Choose the required format, download it, then open it with a compatible PDF, EPUB or DOCX app. A phone file-browser preview may omit features such as DOCX headers and page numbering.

Before you start

What you need

  • Sign in to the Automateed account that owns the relevant project or purchase.
  • Have the project, source file or account setting needed for “Choose the correct format” ready before changing anything.

Procedure

Complete the task step by step

  1. 01

    Choose the correct format

    Use PDF for fixed visual layout and EPUB for reflowable reading.

    Current app screenAutomateed Download menu on a mobile viewport
    The responsive menu exposes PDF, DOCX, EPUB, Print, audiobook, KDP package and published-book actions without leaving the book preview.
  2. 02

    Open with a compatible app

    Use an EPUB reader for EPUB and a full Word-compatible app for DOCX.

  3. 03

    Do not rely on the file browser preview

    Basic phone preview tools can hide headers, page numbers and embedded fonts.

  4. 04

    Verify desktop output too

    Use desktop Word or a PDF reader when checking final publishing layout.

Success check

Confirm that it worked

  • The expected result from “Verify desktop output too” is visible in the relevant Automateed screen or exported file.
  • Refresh the page once and confirm the saved state remains unchanged.

Important notes

  • Available controls can differ by book type, plan and current project status.
  • Review generated content, facts, usage rights and final files before publishing or selling.

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