KoboForge • Kobo EPUB & Image Converter

1. Import

Drop a file here

Best results come from DOCX. PDFs are reconstructed client-side (spaces, paragraphs, tables, heading guesses). Then edit anything that looks off before you export.

Your Kobo preview

Choose the device you read on

Defaults to Kobo Libra Colour

Your converted document opens in this device view after upload. Changing any setting below immediately redraws and repaginates the preview.

Kobo model Orientation Text size 10 pt Margin 8 mm

— — Reader header + footer

Published screen resolution, diagonal, and body proportions are used. These controls affect preview only; exact line breaks can still vary with Kobo firmware and fonts.

Book title Author Language

Preserve tables as structured HTML PDF grids and Markdown pipe tables become real <table> elements for best Kobo compatibility. Uncheck to flatten tables to plain text. Split into chapters by H1 only Off by default (one continuous book — best for Kobo page-turn). When on, only H1 starts a new spine item; H2 stays inline so section titles like “Offerings…” do not cut the book in half.

Workflow

Import a document (DOCX, PDF, TXT, or Markdown).
Choose your Kobo directly beneath the uploader.
Page through the converted output in Device, which opens automatically.
Fix structure in Edit or HTML.
Use Diff to review changes, then export.

2. Preview & edit

Spot-check, then export below

Device opens after import using the Kobo selected under Import. Edit lets you fix the converted body. Diff = full document with Google Docs–style track changes (red strikeout / green add); the list below jumps to each change.

Load a document to edit structure, then switch to Device for a paginated Kobo preview.

3. Status

Client-side output

Progress and diagnostics while the document is reconstructed. Export lives after preview.

Waiting for a document.

4. Image converter

Make a Kobo screen-ready image

Resize, fit, and tone-map a local image to the selected Kobo’s exact portrait or landscape pixel dimensions. Use contain for uncropped artwork, cover for full-screen wallpapers, or dither for crisp black-and-white E Ink.

Drop an image

PNG, JPEG, WebP, GIF, or browser-supported bitmap. Nothing is uploaded.

Kobo target Orientation Fit E Ink treatment Output Contrast 110% Letterbox colour Used by “Contain” and JPEG transparency

Conversion result

Choose an image to begin.

Your exact-resolution converted bitmap will appear here.

5. EPUB export

Download EPUB

Download always pulls the latest Edit/HTML body first, then builds the EPUB. Open the Diff tab to review track changes in the full document.

Device specification sources

Profiles use Rakuten Kobo’s published technical specifications for Clara BW, Clara Colour, Libra Colour, Sage, and Elipsa 2E. Screen placement inside the bezel is estimated because Kobo publishes body and display dimensions, not bezel offsets.