October 24, 2019
Body Styling? Leave It to the App
Why the body tag deserves special care: keep it style-free so reading apps can apply the reader's own preferences without conflicts.
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May 29, 2022
Digital Book Production - The Quality Test
A practical checklist for spotting low-quality EPUB3 books exported straight from InDesign, from standards validation to styles, code and footnotes.
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May 21, 2019
Split Into Paragraphs? Words? Or Maybe Letters?
Why over-splitting a digital book's text into span-per-word markup bloats file size, burdens reading apps and breaks CFI bookmarks.
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April 14, 2019
Creating Valid Footnotes for a Digital Book
How print notes become digital footnotes in ePub3, the round-trip method, the noteref/aside conventions, and why InDesign output falls short.
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December 14, 2018
The X of HTML and Reading on Kindle
Why valid XHTML, not loose HTML, is essential for clean EPUB3 files and for successful MOBI conversion on Kindle.
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August 4, 2018
Fonts, Free and Open
EPUB3 requires OTF and WOFF support, so convert your TTF fonts to open formats for reliable rendering across all reading apps.
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April 25, 2018
The Cover Page Outside the Cover
How to set a proper EPUB3 cover image in Sigil - and why you should delete the redundant COVER.XHTML page it generates.
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March 4, 2018
Viewport in Fixed Layout
Why the viewport declaration matters in fixed-layout ebooks, and the size mismatches InDesign quietly introduces on export.
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January 17, 2018
Fonts Without a Point (2)
Why copy-protected fonts exported from InDesign break ebooks, the display damage they cause, and how to spot the error in Chrome.
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July 4, 2017
Did You Know? It Not Only Checks - It Also Packs
The pagina EPUB Checker can validate an unpacked book folder and package it correctly, avoiding common MIMETYPE zip problems.
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December 7, 2016
Clean CSS for a Digital Book
How CSS inheritance in EPUB3 chapters can block readers from changing fonts and colours, and a sanity-check routine to catch it.
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August 7, 2015
Who's Afraid of Tables?
Why HTML tables are tricky in ePub, how RTL inheritance affects them, and how to define a table correctly for Hebrew books.
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July 27, 2015
Black on Black
Hard-coding black text colour and margins in your EPUB CSS overrides reader preferences and can leave text unreadable in night mode.
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July 20, 2015
The InDesign Font Embedding Problem
InDesign embeds fonts by encoding them so they only work in Apple iBooks - always inspect your exported EPUB before distribution.
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July 19, 2015
Welcome to Our Technology Blog!
Launching our technology blog to share tips, tutorials and insights on producing standards-compliant EPUB3 digital books, including in Hebrew.
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July 19, 2015
Checking a Digital Book Before Distribution
EPUB3 conversion demands a clean, standards-based workflow - use epubcheck to validate that your finished file is a valid EPUB3 book.
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