Does Supernote A5X support EPUB?

Yes. Supernote A5X supports EPUB, EPUB3, PDF, and several other formats natively via its built-in Reader app. The Reader app supports text reflow, font adjustment, and stylus annotation directly on EPUB pages. You can highlight, underline, and add handwritten margin notes.

How do I transfer EPUB files to Supernote A5X?

Three main methods: (1) Connect via USB-C to your computer and drag EPUB files into the Document or Books folder using the Supernote Partner app or standard file explorer. (2) Use Supernote Cloud (supernote.com cloud service) to upload EPUBs and sync wirelessly. (3) Email EPUBs to your Supernote send-to-device email address (configured in the cloud settings).

How does Supernote A5X compare to reMarkable 2?

Supernote A5X (10.2 in, 226 ppi) and reMarkable 2 (10.3 in, 226 ppi) are similar in screen size and resolution. Supernote A5X supports EPUB natively; reMarkable 2 requires converting to PDF first. Supernote's ceramic STAEDTLER tip does not require a proprietary stylus. reMarkable has better third-party app support and a newer reMarkable Paper Pro with colour E Ink.

Can I export my EPUB annotations from Supernote A5X?

Yes. Supernote A5X can export annotations as a PDF with your handwriting overlaid, or as a list of marked passages. Connect to the Supernote Partner app on your computer or phone to sync and export annotation files. Some users pipe exports into Obsidian or Notion for knowledge management.

What is the Supernote A5X2 and how does it differ from A5X?

The Supernote A5X2 was released in 2023 as the successor to the original A5X. It has a faster processor, improved E Ink refresh, and better app performance. Both support EPUB natively and use the same ceramic tip stylus system. If you are buying new, choose the A5X2; if you own the original A5X, the firmware continues to receive updates.

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How to Read and Annotate EPUB Files on Supernote A5X (2026 Guide)

Supernote A5X is a 10.2-inch E Ink note-taking tablet with a ceramic-tip stylus and a powerful reading and annotation system. It supports EPUB natively and is popular with academics, doctors, and researchers. This guide covers loading EPUB files onto your A5X and getting the most from its annotation features.

Supernote A5X Overview

Supernote A5X is made by Ratta, a Beijing-based company focused on E Ink writing devices. The A5X features a 10.2-inch 226 ppi E Ink Carta display, a ceramic-tipped stylus (the Heart of Metal tip requires no charging, no Bluetooth, and no proprietary replacement stylus), and a reading system designed for serious note-takers. It is popular with academics, medical professionals, lawyers, and researchers who want to read and annotate EPUB and PDF documents on a large E Ink screen.

Supernote A5X vs A5X2 Specs

Feature	Supernote A5X	Supernote A5X2
Screen size	10.2 inches	10.2 inches
Resolution	226 ppi	226 ppi
E Ink type	Carta	Carta 1200
Processor	Quad-core 1.8 GHz	Quad-core 2.0 GHz
Storage	32 GB	32 GB
Stylus	Ceramic STAEDTLER tip (no charge)	Ceramic STAEDTLER tip (no charge)
EPUB support	Native	Native
Wi-Fi	Yes (2.4 GHz + 5 GHz)	Yes (2.4 GHz + 5 GHz)

How to Load EPUB Files onto Supernote A5X

Method 1 — USB-C Transfer

Connect your Supernote A5X to your computer via USB-C.
Install the Supernote Partner app on your Mac or Windows PC (free download from supernote.com).
In the Partner app, navigate to the Document or My Library folder.
Drag and drop your EPUB files into the folder.
Disconnect. Open the Reader app on the A5X — new books appear in the library.

Method 2 — Supernote Cloud (Wireless)

Create a Supernote Cloud account at supernote.com and sign in on your A5X.
Upload EPUB files via the Supernote Cloud web interface on your computer.
On the A5X, pull down to sync. Books appear in the cloud library shelf.

Method 3 — Send-to-Device Email

In the Supernote Cloud settings, find or configure your send-to-device email address.
Email EPUB files as attachments to that address from your computer or phone.
Sync the A5X to receive the files wirelessly.

Converting PDF to EPUB for Supernote A5X

Supernote A5X handles PDFs well on its 10.2-inch screen, and many academic readers prefer reading PDFs directly in two-column format. However, converting to EPUB gives you reflowable text, adjustable font size, and searchable content — useful for long guideline documents.

Go to toolkit.bot and upload your PDF.
Click Convert. Download the EPUB.
Transfer to your A5X using USB-C, Supernote Cloud, or send-to-device email.

Reading and Annotation Tips for Supernote A5X

Reading menu: Tap the top edge of the screen while in Reader to open the toolbar. Adjust font size, line spacing, margins, and theme (white, sepia, dark).
Stylus annotation: In EPUB mode, use the stylus to underline text, highlight passages, or write margin notes. Switch between pen, highlighter, and eraser from the side toolbar.
Navigation: Use the table of contents (ToC) icon in the reading toolbar to jump directly to chapters or sections. EPUB ToC navigation is much faster than scrolling.
Export annotations: Sync with the Supernote Partner app to export your annotated document as a PDF (preserves handwriting overlay) or as a text file of your highlights.
Digest: The Supernote Digest feature compiles all your highlights and notes from a document into a summary page — useful for academic reading and CPD reflection.

Frequently Asked Questions

Does Supernote A5X support EPUB?: Yes. Supernote A5X supports EPUB, EPUB3, PDF, and several other formats natively via its built-in Reader app. The Reader app supports text reflow, font adjustment, and stylus annotation directly on EPUB pages. You can highlight, underline, and add handwritten margin notes.
How do I transfer EPUB files to Supernote A5X?: Three main methods: (1) Connect via USB-C to your computer and drag EPUB files into the Document or Books folder using the Supernote Partner app or standard file explorer. (2) Use Supernote Cloud (supernote.com cloud service) to upload EPUBs and sync wirelessly. (3) Email EPUBs to your Supernote send-to-device email address (configured in the cloud settings).
How does Supernote A5X compare to reMarkable 2?: Supernote A5X (10.2 in, 226 ppi) and reMarkable 2 (10.3 in, 226 ppi) are similar in screen size and resolution. Supernote A5X supports EPUB natively; reMarkable 2 requires converting to PDF first. Supernote's ceramic STAEDTLER tip does not require a proprietary stylus. reMarkable has better third-party app support and a newer reMarkable Paper Pro with colour E Ink.
Can I export my EPUB annotations from Supernote A5X?: Yes. Supernote A5X can export annotations as a PDF with your handwriting overlaid, or as a list of marked passages. Connect to the Supernote Partner app on your computer or phone to sync and export annotation files. Some users pipe exports into Obsidian or Notion for knowledge management.
What is the Supernote A5X2 and how does it differ from A5X?: The Supernote A5X2 was released in 2023 as the successor to the original A5X. It has a faster processor, improved E Ink refresh, and better app performance. Both support EPUB natively and use the same ceramic tip stylus system. If you are buying new, choose the A5X2; if you own the original A5X, the firmware continues to receive updates.

Convert a PDF to EPUB for Supernote A5X free →