ما هو EPUB؟ دليل كامل لتنسيق EPUB

تعرف على ملفات EPUB، وكيف تعمل، ومتى تستخدمها. دليل شامل لصيغة EPUB مع المقارنات والمحولات المجانية. أداة مجانية عبر الإنترنت، لا تحميل أو تسجيل مطلوب. تعمل في المتصفح، فورية وآمنة. تدعم العديد من الصيغ ملفات.

أداة تحويل ملفات مجانية عبر الإنترنت. تعمل على Chrome وFirefox وSafari وEdge وOpera والمتصفحات الحديثة الأخرى على Windows وmacOS وLinux وAndroid وiOS. لا حاجة لتثبيت برامج أو تسجيل. تتم جميع التحويلات مباشرة في متصفحك، لذا لا تغادر ملفاتك جهازك. مجانية للاستخدام بدون حساب.

EPUB

ما هو EPUB؟ دليل كامل لتنسيق EPUB

EPUB (النشر الإلكتروني) هو تنسيق كتاب إلكتروني مفتوح يعتمد على HTML و CSS يسمح للنص بإعادة التدفق والتكيف مع أحجام الشاشات المختلفة، مما يجعله التنسيق القياسي للكتب الرقمية عبر معظم أجهزة القراءة الإلكترونية.

آخر تحديث:

Year2007
TypeStructured Text
UsageDigital Books

What is it?

EPUB (Electronic Publication) is an open ebook format based on HTML and CSS that allows text to reflow and adapt to different screen sizes, making it the standard format for digital books across most e-readers.

Understanding EPUB helps you choose the right format for your specific needs and workflow.

Technical Specifications

DeveloperIDPF / W3C
File Extension.epub
Based OnHTML, CSS, XML
ReflowableYes
DRM SupportYes (optional)
Media SupportImages, audio, video
Current VersionEPUB 3.3
MIME Typeapplication/epub+zip

Pros & Cons

Advantages

نص قابل لإعادة التدفق

EPUB text reflows to fit any screen size, font size, or orientation - readers control their reading experience.

معيار مفتوح

EPUB is maintained by W3C as an open standard, not controlled by any single company.

توافق واسع

Supported by Kobo, Apple Books, Google Play Books, and most e-readers except Kindle (which uses MOBI/KFX).

وسائط غنية

EPUB 3 supports embedded audio, video, interactive elements, and complex layouts for enhanced ebooks.

Disadvantages

لا دعم لكيندل

Amazon Kindle uses its own format; EPUB files must be converted before reading on Kindle devices.

مشاكل التخطيط الثابت

Complex layouts like textbooks, comics, and cookbooks are difficult to implement properly in reflowable EPUB.

عرض غير متسق

Different e-readers render EPUB differently - what looks great on one device may look broken on another.

تعقيدات DRM

DRM-protected EPUBs can only be read on authorized devices, limiting flexibility.

When to Use It

Here are the most common scenarios where EPUB is the right choice:

كتب خيالية وغير خيالية

The primary format for distributing novels and text-heavy books through digital bookstores.

النشر الأكاديمي

Textbooks and academic papers distributed through platforms like Apple Books and Google Play Books.

النشر الذاتي

Independent authors use EPUB to distribute their work across multiple platforms from a single file.

مجلات رقمية

Periodicals and magazines delivered as EPUB for offline reading on e-readers and tablets.

How to open a EPUB file

EPUB files are widely used for eBooks and digital publications, and various software tools cater to different user needs. Professional tools like Adobe InDesign are suited for publishers and designers, while free and open-source options like Calibre appeal to casual users and hobbyists. Browser-based solutions like Google Play Books offer convenience for reading on-the-go, while built-in applications on devices provide basic functionality for viewing EPUB files.

When choosing EPUB software, factors such as feature fidelity, whether the focus is on editing or viewing, and the cost model are crucial. Users should consider platform compatibility, export needs for different formats, and when it might be more efficient to convert EPUB files to other formats. Each tool has its strengths and weaknesses, making it important to align the choice with specific use cases.

Calibre 6.20

Windows, macOS, LinuxFree (GPL)

Calibre is a powerful open-source eBook management tool that supports EPUB file viewing and editing. It allows users to convert, organize, and customize their EPUB files with a high level of fidelity.

الميزات الرئيسية
  • Comprehensive eBook library management
  • Convert EPUB to various formats
  • Edit EPUB metadata and content
  • Built-in eBook reader with annotations
  • Sync with eBook devices
نقاط القوة
  • Extensive format conversion options
  • Highly customizable user interface
  • Active community and frequent updates
القيود
  • Editing features can be complex
  • Interface may be overwhelming for beginners

يصدّر إلى: MOBI, PDF, AZW3, TXT, HTML

الأفضل لـ: Calibre is ideal for users seeking a comprehensive EPUB management tool with extensive conversion capabilities.

زيارة Calibre →

Adobe InDesign 2023

Windows, macOSSubscription

Adobe InDesign is a professional desktop publishing software that excels in creating and editing EPUB files for high-quality digital publications. It offers advanced layout and design features, ensuring fidelity in complex EPUB formats.

الميزات الرئيسية
  • Advanced layout and typography tools
  • Interactive elements for EPUB files
  • Export to EPUB 3.0 and fixed-layout EPUB
  • Support for multimedia content
  • Extensive design customization options
نقاط القوة
  • Industry-standard for professional publishing
  • Rich feature set for complex layouts
  • Seamless integration with Adobe Creative Cloud
القيود
  • High cost for casual users
  • Steep learning curve for beginners

يصدّر إلى: PDF, SWF, HTML, EPUB

الأفضل لـ: Adobe InDesign is best for professional publishers needing robust design capabilities for EPUB files.

زيارة Adobe InDesign →

Sigil 1.9.18

Windows, macOS, LinuxFree (GPL)

Sigil is an open-source EPUB editor that allows users to create and modify EPUB files with a focus on WYSIWYG editing. It provides a user-friendly interface for both novice and experienced users looking to edit EPUB content directly.

الميزات الرئيسية
  • WYSIWYG editing interface
  • Multi-format support for EPUB 2 and 3
  • Built-in validation for EPUB standards
  • Support for CSS styling and HTML editing
  • Table of contents generator
نقاط القوة
  • User-friendly for EPUB editing
  • No cost and open-source
  • Active community support
القيود
  • Limited features compared to professional tools
  • Occasional stability issues

يصدّر إلى: EPUB 2, EPUB 3

الأفضل لـ: Sigil is perfect for users who want a straightforward EPUB editor without any costs.

زيارة Sigil →

Google Play Books N/A

All (browser, Android, iOS)Free / Paid

Google Play Books is a cloud-based reading platform that allows users to read EPUB files online or through mobile devices. It offers basic viewing capabilities with synchronization across devices and a simple interface for casual reading.

الميزات الرئيسية
  • Cloud storage for EPUB files
  • Sync across devices
  • Highlighting and note-taking features
  • Searchable text within EPUB files
  • Offline reading capability
نقاط القوة
  • Convenient for casual reading
  • Cross-platform accessibility
  • Integrated with Google ecosystem
القيود
  • Limited editing capabilities
  • Dependent on internet connection for full features

يصدّر إلى: N/A

الأفضل لـ: Google Play Books is suitable for casual readers who want easy access to EPUB files across devices.

زيارة Google Play Books →

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المراجع

  1. EPUB - Library of Congress
  2. EPUB 3.3 - W3C Recommendation
  3. EPUB - Wikipedia