Good books.
Better reading.
Practical help for ebook formats, reading devices, layout and privacy. Find the right next step for your library.
This page is in English. The language menu opens MOBI → EPUB converters, not translations of this page.
6 guides
Kindle & WhispernetMOBI Not Sending to Kindle? Convert and Check Your EPUB
Understand the difference between sending a book to Kindle and copying a file to a device, and prepare an EPUB for the Send-to-Kindle workflow.
Read the guide
Manga & GraphicsPreparing Manga for E-Readers: Margins, Grayscale and Reading Order
Explore margin trimming, right-to-left reading order and grayscale preparation for comic pages on an e-reader. Device support and results vary.
Read the guide
Typography & CSSEbook Cover Dimensions: Proportions, Metadata and Platform Requirements
A guide to cover proportions, pixel dimensions and ebook metadata. Check current platform requirements before preparing a publishing upload.
Read the guide
Hardware & E-InkStylus Margin Ergonomics: Formatting EPUBs for Note-Taking Tablets
Consider reading-column width and writing space when preparing documents for note-taking tablets. Layout controls depend on the device and format.
Read the guide
Security & StandardsBrowser-Based and Cloud Conversion: Understanding File Privacy
Understand where ebook processing happens, what website requests can still occur, and which privacy questions to ask when choosing a converter.
Read the guide
Security & StandardsMOBI, AZW3 and EPUB: Choosing a Format for Your Reader
Compare the background and structure of MOBI, AZW3 and EPUB, and choose a format for the reader or delivery service you use.
Read the guideMore format comparisons
FB2 vs EPUB: differences and when to convertReady for a new format?
Convert supported DRM-free books in your browser, then check the result on your reader.