Help:File

Files are contained in the sixth namespace, the File namespace. Files can be uploaded using Special:Upload, but only by autoconfirmed users. Choose a file to upload, then choose a name for the file. The file name should contain the subject's name. Files can be added to an article by creating a link to the file in the article. Additional parameters to the file include size, the change of the image's dimensions, "thumb" if the image is to be a thumbnail image, and alt text. This page is a tutorial on how to make files appear:

Tutorial
To make an image appear on an article, link to the page containing the image, which will start with  and end with the image's file format.

This produces an image with no frame and at its original resolution, which is generally not a good thing. To fix these things, put  after the file name, which will turn it into a thumbnail.

It is possible to add a caption to images by putting text after another vertical bar.

Finally, it is possible to change the size of images and their position on the page with additional pieces of text before the caption. will make the image 250 pixels wide (this number can be changed, and the default size is 200 pixels wide), and  will place the image on the left of the screen (  and   also work, and right is the defaul t position).

An alternative way to show images is in a gallery. Galleries display images at small sizes in a grid. To make one, surround a section with  at the start and   at the end, and place each file name (without the   prefix) on a new line. Image captions can be placed after a vertical bar.