Files can be uploaded from Upload file page if this feature is enabled.
Linking to files
Pages that contain files are linked like normal pages via Wikilink syntax.
Using images in pages
When image is uploaded page named Image:filename.jpg is created. This can be used with Wikilink syntax.
However this has additional syntax which cannot be used with normal wikilinks: [[Image:MyImage.png|SIZE|ALT|CAPTION]].
These must be specified in order and empty values are ignored.
Specifying size
Size is specified as first numerical parameter for wikilink.
Either thumb for thumbnail of width 180 pixels, width in pixels, or absolute size like: 800x600.
Alternative text
Second numerical parameter for wikilink, used in alt parameter for img tag and displayed in case of image is missing or browser doesn't support images or loading of images has been disabled.
Caption
Third numerical parameter for wikilink, used in title parameter for img and which is displayed when mouse is over image, and underneath image.
Link
Note: This is feature that was added in version 0.2
By default images link to page link to image, this can be used via named parameter link. It can be set to name of page for link to page, or empty for no link.