# Labeling Guidelines
The **Labeling guidelines** extension contains the instructions that labelers should follow during labeling tasks.
Guidelines can be uploaded in `.txt`, `.md`, or `.pdf` format.
For guidelines uploaded in **Markdown (`.md`) format**, the extension supports anchor link navigation. This allows users to navigate long guidelines using table of contents links that jump directly to specific sections within the document.
{% hint style="info" %}
The maximum guideline file size is **1 MB**.
{% endhint %}
There are three ways to add guidelines:
1. Drag and drop a file into the file uploader in the extension.
2. Upload a file by clicking **Browse files.**
3. Choose a file from the library by clicking **Recently used** from the triple-dot menu.
Uploading a new guideline will replace the existing guideline.
While deleting a guideline will remove it for all assignees in the project.
