To put a page or file into an existing category just put [[Category:CATEGORY NAME]] at the bottom of the page or file.

If an image or media file needs to be put in a new category, then you will have to create that category.

1. To do so, put the new category name at the bottom of the file while in edit mode:


2. Then click the "save page" button. There will now be a red link at the bottom of the file.

3.Click on the red link. This will open an edit window.

4. Add the category link for an existing category:

[[Category:CATEGORY NAME]]

5. Save the page. You have created a new category.

You can create as many categories or subcategories, as are needed to correctly categorize the image, media file, or page.