Convert → preview on your Kobo → edit reflowable text or lock exact PDF pages → export. Nothing is uploaded.
Best results come from DOCX. PDFs are reconstructed client-side with intentional writing space, relative type size, font traits, paragraphs, tables, and heading guesses; images and scan-only pages stay inline automatically.
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Processed only in this browser — nothing was uploaded to a server.
Auto keeps ordinary documents reflowable and switches graphic-heavy PDFs to a fixed-layout EPUB 3 facsimile. Fixed layout preserves exact positions, fonts, sidebars, image wraps, and writing space, but its text cannot be resized or edited like a normal ebook.
Your converted document opens in this device view after upload. PDF layout and typography reflow to this screen; detected DOCX/PDF images are optimized for it and stay inline while you edit.
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.
Edit opens after import using the Kobo selected under Import. Diff marks words, formatting, image movement/resizing, tables, and placement directly on that same paginated screen.
To add an image, drop or paste it directly onto the Kobo page. It is sized automatically.
Download always pulls the latest Edit/HTML body first, then builds the EPUB. Switch to Diff for the in-Kobo red/green changes and jump list.
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.