# reMarkable Kaitai Specs > reMarkable Kaitai Specs defines Kaitai Struct parsers for versions 3 and 5 of the reMarkable tablet's binary .rm pen-stroke format. The repository includes a sample version 5 file and credits an earlier format investigation as its basis. The author reports superficial testing on one version 5 document and no testing of version 3. - Type: Documentation - Targets: App - Category: Binary analysis libraries - Relationship: Learning resource - Sources reviewed: 2026-11-06 - Added to the catalog: 2026-11-09 - Original resource: - Primary source: - Catalog page: - Record JSON: - Chinese version: [简体中文](https://awesomerea.org/zh/resources/remarkable-kaitai/index.md) ## Requirements & limits - **Prerequisites:** Kaitai Struct for compiling the specifications into parsers. - **Testing evidence:** Version 5 was tested superficially on one single-layer document; version 3 was not tested. - **License:** MIT licence. ## Primary sources 1. ## More in References and learning - [Serflings Remake Project: Settlers 1 savegame format](https://awesomerea.org/resources/serflings-settlers-save-format/index.md) · Documentation - [Game Boy Advance LCD Interface](https://awesomerea.org/resources/gba-lcd-interface/index.md) · Documentation - [WoWDBDefs](https://awesomerea.org/resources/wowdbdefs/index.md) · Documentation - [MinYMizer](https://awesomerea.org/resources/minymizer/index.md) · Documentation - [GTPD-Code-Reference](https://awesomerea.org/resources/gtpd-code-reference/index.md) · Documentation - [Installation and client setup](https://awesomerea.org/resources/rea-installation/index.md) · Documentation ## About this entry The description was reviewed against primary sources. Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.