# Kettlemark documentation

> How Kettlemark works, how to install it, and where to find every command and setting.

[Contents](#contents)

1.  [Home](https://docs-demo.vagejs.com/)
2.  Docs

Kettlemark renames photos and videos by the date they were taken. These pages explain how it works and how to use it.

## How it works

Most cameras and phones store the moment a photo was taken inside the file, in a part called the EXIF data. Videos keep a similar creation date. Kettlemark reads that date and builds a new file name from it, using a pattern you can change.

It never edits the photos themselves. It only changes file names, and it writes a small log so every rename can be undone.

## What's in these docs

-   **[Getting started](https://docs-demo.vagejs.com/docs/getting-started/)**: install Kettlemark and rename your first folder.
-   **[Guides](https://docs-demo.vagejs.com/docs/guides/)**: step-by-step help for common jobs.
-   **[Reference](https://docs-demo.vagejs.com/docs/reference/)**: every command, option and setting.
-   **[Questions](https://docs-demo.vagejs.com/docs/faq/)**: short answers to what people ask most.

## Requirements

Kettlemark runs on macOS, Windows and Linux. It reads JPEG, HEIC, PNG, TIFF, most camera RAW formats (CR3, NEF, ARW, DNG) and MP4 and MOV videos.

[NextGetting started](https://docs-demo.vagejs.com/docs/getting-started/)