Compare Electronic Publication and Psion eBook formats — understand the key differences and when to use each
Electronic Publication
EPUB (Electronic Publication) is the open standard for digital eBooks, maintained by the W3C. EPUB uses HTML/CSS for content rendering, making eBooks reflowable — text automatically adapts to different screen sizes, font preferences, and reading orientations. EPUB 3 supports fixed-layout pages, multimedia (audio, video), MathML, SVG graphics, JavaScript interactivity, and accessibility features (WCAG compliance, screen reader support). The format is supported by Apple Books, Google Play Books, Kobo, Nook, Calibre, and most e-reader apps (but not Amazon Kindle, which uses its own formats). EPUB files are essentially ZIP archives containing XHTML content, CSS stylesheets, images, and metadata. Converting to EPUB is essential for publishing digital books across the widest range of platforms and devices.
Psion eBook
Psion eBook (.tcr) is a ebook file format.
| Feature | EPUB | TCR |
|---|---|---|
| Full Name | Electronic Publication | Psion eBook |
| File Extension | .epub | .tcr |
| Category | ebook | ebook |
| Free to Convert | ✓ Yes | ✓ Yes |
| Browser Support | ✓ All Browsers | ✓ All Browsers |
| Convert to Each Other | ✓ Yes | ✓ Yes |
またはファイルをここにドラッグ＆ドロップ
最大ファイルサイズ：2GB