XWiki Syntax Guide

XWiki Syntax 2.1 » Editing » Images

2.1 Images

Feature	XWiki Syntax 2.1	Result
Image from attachment on current page	image:img.png
Image from attachment on another page	image:PageA.PageB@img.png
Image with parameters	[[image:img.png||width="25" height="25"]]
Images located at URL	image:http://some/url/img.png
Prepackaged Icons	image:icon:accept

XWiki Syntax 2.1 Image Specification

The full format of an image is either image: (reference) or [[image: (reference) {||parameters}]]

• image: A required string identifying the resource as image.
• reference: The reference to the image that shall be displayed in one of the following forms:
  • URL: Any URL to an image in the form of protocol://path/imageName. Example: http://domain.org/path/img.png
  • Attachment reference in the form {{{wikiName:} spaceNameList.} pageName@} (imageName)
    • wikiName: An optional string containing the name of a virtual wiki. The image reference will point to an image attached to a page inside that virtual wiki. If no wiki is specified, the current wiki is used. Example: mywiki.
    • spaceNameList: An optional dot-separated list of wiki Space names. If no space is specified the current space is used. Examples: Main, A.B, A.B.C
    • pageName: An optional string containing the name of the wiki page to which the referenced image is attached. Example: Welcome
    • imageName: A required string containing the name of the image attached to a page as it is stored in the wiki. Example: myImage.png
  • Icon reference in the form (icon:) (iconName). Example: icon:accept
    • icon: A required string identifying the image reference as an icon from the XWiki Icon Set.
    • iconName: A required string identifying the icon referenced. Example: accept
  • Data URI in the form (data:) (content). Example: data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==
    • data: A required string identifying the image as being specified inline using the Data URI scheme.
    • content: The encoded image. Example: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==
• parameters: An optional list of space-separated parameters passed to the image. Example: width="800" height="600" alt="img.png" title="My nice image"
  • HTML attributes: All attributes defined by the HTML standard will be added to the rendered HTML <img> tag.
    • style: CSS style information that should be applied to the image. Examples: style="float:right;height:50" (image on right side, height 50 px), style="display:block;margin-left:auto;margin-right:auto;width:80%" (image centered, width 80% of block width), style="vertical-align:bottom" (text starts at bottom of picture)
    • height: A parameter that defines the height of the displayed image. The value should be presented either in pixel (example: height="80") or in pixel related to the height of the block containing the image (example: height="40%").
    • width: A parameter that defines the width of the displayed image. The value should be presented either in pixel (example: width="80") or in pixel related to the width of the block containing the image (example: width="40%").
    • title: A parameter that defines the title the displayed image which will be visible when hovering the mouse trigger over the image, for instance. Example: title="My nice image"
    • alt: A parameter that defines which text should be displayed if the browser is not able to display the image. Since this is a required HTML attribute XWiki will use the file name instead if the alt parameter is not defined. Example: alt="img.png"
    • More: A more in depth explanation on the HTML <img> tag including more attributes can be reviewed on w3.org.
  • queryString: Allows queries to be passed to the server when creating the download link for the referenced image. Example: queryString="width=100&height=800&keepAspectRatio=true" (keepAspectRatio=true will fail if the width and height parameters are specified in addition to queryString!)