[GUI Plugin] reMarkable Sync: Send books to reMarkable via the desktop app

[mremond]

reMarkable Sync is a Calibre plugin that sends books from your library to your reMarkable tablet via the reMarkable desktop app, converts EPUBs to reMarkable-tuned PDFs, and can sync reading positions back to Calibre.

A free reMarkable Connect account is enough — no paid subscription required.

Source / releases / issues: https://github.com/mremond/calibre-remarkable

Highlights

• Send to reMarkable — selected books land in the desktop app's local store and sync to your tablet on next app launch.
• Export as PDF… — save the same reMarkable-tuned PDF anywhere on disk, no device required (handy for previewing or as a fallback upload path).
• EPUB → PDF conversion tuned per device (reMarkable 2, Paper Pro, Paper Pro Move): configurable font family, size, line height, per-edge margins, and page footer.
• Full-bleed cover inserted as the first page (top-aligned, padded with the cover's dominant edge color).
• Reading position sync — pull progress, current page, and last-read timestamp back into Calibre custom columns.
• Smart document naming: Series-Number Title - Author.

Requirements

• Calibre 5.0+ (tested on Calibre 9.7).
• The reMarkable desktop app installed and signed in (free Connect account is fine).
• After sending books, quit and restart the desktop app so it picks up the new documents and uploads them to your tablet.

Install

1. Download remarkable_sync-1.0.0.zip (attached to this post, or from the
   GitHub release).
2. In Calibre: Preferences → Plugins → Load plugin from file, pick the zip.
3. Restart Calibre. The plugin appears as reMarkable Sync in the toolbar and under Tools.
4. Open Tools → reMarkable Sync → Settings… to set your default folder, device type, conversion options, and (optionally) custom columns for reading-position sync.

Notes

• Developed and tested on macOS. Windows and Linux code paths exist but are currently untested — feedback very welcome.
• GPL v3.

Version history

• 1.0.0 (2026-04-25) — first stable release. Full notes: https://github.com/mremond/calibre-r...n/CHANGELOG.md

[robowolf]

I was able to upload a book, but I could not locate it on my reMarkable. The plugin will not let me select any other folder other than "root".

I have reManager with mods, so first I tried looking with the mods not loaded, then I tried with the mods loaded, using both the system reader and then with KOReader.

Here is my info:

Windows 11, version 23H3
Calibre, version 9.10.0
reMarkable Paper Pro Move, version 3.27.1.0

[JSWolf]

Originally Posted by robowolf

I was able to upload a book, but I could not locate it on my reMarkable. The plugin will not let me select any other folder other than "root".

I have reManager with mods, so first I tried looking with the mods not loaded, then I tried with the mods loaded, using both the system reader and then with KOReader.

Here is my info:

Windows 11, version 23H3
Calibre, version 9.10.0
reMarkable Paper Pro Move, version 3.27.1.0

Why are you on such an old version of Windows 11?

[theducks]

Originally Posted by JSWolf

Why are you on such an old version of Windows 11?

Maybe they don't trust MS?

[JSWolf]

Originally Posted by theducks

Maybe they don't trust MS?

Some software will not work on 23H2. You really need 24H2 or 25H2. 26H2 is due out in September or October 2026.

[theducks]

Originally Posted by JSWolf

Some software will not work on 23H2. You really need 24H2 or 25H2. 26H2 is due out in September or October 2026.

That is a different issue.
Calibre is not one that needs the latest

[robowolf]

Is having an outdated version of Windows 11 really going to affect this particular issue? I haven't experienced any other problems. Calibre and my many other plugins seem to work just fine.

[JSWolf]

Windows 11 23H2 has ended support. There are no more updates for it.

[robowolf]

Okay, I understand that. Calibre so far has worked just fine on my current version of Windows. Do you believe my version of Windows likely the reason for my issue with this particular plugin that I mentioned earlier?