Kobo EPUB Guide: Every Model, Sideloading, Reading Settings and Format Tips

June 12, 2026  ·  9 min read

Kobo is the best mainstream e-reader for EPUB — every model from the 2012 Glo to the 2024 Clara Colour and Libra Colour reads the format natively, without conversion, unlike Kindle. Here's how to get the most out of EPUB on any Kobo: which model does what, how to sideload, and the typography settings that matter.

Why Kobo for EPUB?

• Native EPUB and EPUB 3 support on every model — no conversion needed
• Adobe Digital Editions (ADE) DRM support — read library e-books borrowed via OverDrive/Libby
• Full typography control: fonts, margins, line spacing, text weight
• Side-loading without any Amazon account or proprietary ecosystem
• One firmware across the range, so features reach older models too

Which Kobo models read EPUB? (every model)

All of them. The differences are screen size, resolution, waterproofing, buttons, stylus support and the USB connector — not format support. Use this table to find your model and the transfer methods it supports.

Discontinued models (Glo, Aura, Clara HD, Nia, Forma, Libra H2O) still read EPUB exactly as the current ones do — the same reader, the same Aa menu. If you are buying new, the Clara BW is the current 6-inch option, the Libra Colour the 7-inch option with buttons, and the Elipsa 2E the large-screen note-taker.

Model-specific notes

• Colour models (Clara Colour, Libra Colour): text renders at 300 ppi like the black-and-white models; colour is 150 ppi. A plain-text EPUB reads identically to a Clara BW or Libra 2. Colour only adds value for covers, illustrated textbooks, charts and comics — and colour images from a converted PDF stay in colour.
• Stylus models (Sage, Elipsa 2E, Libra Colour): alongside finger highlights and typed notes you can write freehand on EPUB pages with the Kobo Stylus 2 (included with the Elipsa 2E, sold separately for the others). Highlights and notes sync to your Kobo account.
• Large screens (Forma, Sage 8 in; Elipsa 10.3 in): big enough that an A4 PDF is legible without zooming, but a converted EPUB still wins for long reading because it reflows and respects your font size.
• USB connector: models up to 2020 (Glo, Aura, Clara HD, Forma, Libra H2O, Nia) use micro-USB; Libra 2, Sage, Elipsa, Clara 2E and everything since use USB-C.
• Dropbox sync: available under Settings → Accounts on Sage, Elipsa, Libra 2, Clara 2E and newer. On an older model, check Settings → Accounts — if Dropbox is listed, your firmware supports it.

Sideloading EPUB Files onto Kobo

Method 1: USB (Most Reliable, Every Model)

1. Connect Kobo to your computer via USB (micro-USB or USB-C depending on model) and tap Connect on the Kobo when prompted — it appears as a USB drive
2. Open the drive and navigate to the root folder
3. Drag-and-drop your EPUB files directly into the root (not into any subfolder)
4. Safely eject the device — books appear in your library on disconnect

EPUB files placed in subfolders are still detected by Kobo's library scan, but the root is safest.

Method 2: Calibre (USB or Wireless)

1. Over USB: connect the Kobo, Calibre detects it; right-click a book → Send to device → Send to main memory. Best for batches and for managing collections and metadata.
2. Wirelessly: enable Kobo's wireless option — Settings → Beta Features → Enable Calibre Wireless
3. In Calibre, go to Connect/Share → Start wireless device server, then right-click a book → Send to device → Send to main memory

The KoboTouchExtended plugin adds extras such as sideloaded fonts and sleep-screen customisation.

Method 3: Dropbox (2021 and Newer Models)

1. On the Kobo, go to Settings → Accounts → Dropbox and link your account
2. Add EPUB files to the Apps/Kobo folder in Dropbox
3. Sync the Kobo (Settings → Sync) to pull the books in wirelessly

Kobo has no email-to-device address like Send to Kindle. For wireless transfer, use Dropbox or Calibre wireless; for anything large, USB.

Reading Settings That Matter for EPUB Quality

Kobo has more typography options than most e-readers. Access them via the Aa button while reading:

Publisher Defaults: On vs Off

This is the most important Kobo setting for converted EPUBs:

• Publisher Defaults On — uses the EPUB's embedded CSS (fonts, spacing, formatting). Good for well-formatted EPUBs from toolkit.bot.
• Publisher Defaults Off — ignores embedded CSS and uses your chosen font/size. Better if the converted EPUB has formatting issues from the source PDF.

If your converted EPUB looks wrong (odd spacing, tiny text), try toggling Publisher Defaults off.

Highlights, Notes and Shelves

Long-press a word and drag to select, then tap Highlight (several colours) or Note to attach typed text. Everything you mark is listed under the book's Annotations menu and syncs to your Kobo account. On stylus models the pen icon in the toolbar lets you write freehand on the page. Organise books into shelves via My Books → menu → Add to shelf — by genre, project or reading status.

Library e-Books via OverDrive and Adobe DRM

Every Kobo from the Aura One (2016) onwards has OverDrive built in: sign in with your library card under More → Settings → OverDrive, then borrow straight from the device — loans download as EPUBs and expire automatically, no computer required. On older models, or with other library services, use Adobe Digital Editions DRM:

1. Create a free Adobe ID at adobe.com
2. On your Kobo: Settings → My Account → Adobe Digital Editions → Authorize
3. Borrow an EPUB from your library via OverDrive/Libby → Download → Open in Kobo

Converting PDFs for Kobo

PDFs display poorly on Kobo's e-ink screen — fixed layout, no text reflow, tiny text on a 6-inch model and still no font control on an 8- or 10-inch one. Convert to EPUB first:

1. Convert with toolkit.bot — handles OCR for scanned PDFs, two-column layouts, tables; colour figures stay in colour on Clara Colour and Libra Colour
2. Transfer via USB, Calibre or Dropbox
3. The EPUB reads with full text reflow, adjustable font size, and Kobo's typography settings