---
title: "MIME Properties"
source: https://dev.pageseeder.com/guide/configuration/properties/mime_properties.html
last_updated: 2026-08-07T17:09:54+10:00
tokens: ~190
---

# MIME properties

These properties associate file extensions to MIME types.

> **Warning:** This document describes a system configuration file: modifying PageSeeder’s MIME properties is not recommended.

The MIME properties are used to map file extensions to their MIME Media type, using the following format:

`[file extension]=[MIME type]`

*Note:*

- The file extension does not include the .’
- The MIME must be a valid [MIME Media type](https://tools.ietf.org/html/rfc2046).

## Location and usage

The MIME properties are stored in:

`/WEB-INF/sysconfig/mime.properties`

## Other

For further information regarding the integration of PSML and content with different MIME types, see [media-fragment](../../../psml/elements/element-media-fragment.md).