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Supported media types for images

The file name extension (remapped to lowercase) is used to determine the supported media type for images and to retrieve its internal preferred dimensions:

  • .jpg or .jpeg : bitmap image compressed in the standard JPEG format (this lossy format is most suitable for photographs).
  • .png : bitmap image in the Portable Network Graphics format (specified by the W3 Consortium).
  • .gif : bitmap image in the legacy Graphics Interchange Format.
  • .pdf : multipaged documents in the Portable Document Format (initially specified by Adobe).

Rendering a single image


The full syntax for displaying an image is:

[[File:file name.extension|options|caption]]

where options can be zero or more of the following, separated by pipes (|):

  • Format option: one of border and/or frameless, frame, thumb (or thumbnail);
    Controls how the rendered image is formatted and embedded in the rest of the page.
  • Resizing option: one of
    • {
    • x{
    • {width}x{
  • Note that the image will always retain its aspect ratio, and can only be reduced in size if it's not in a scalable media type such as SVG (bitmap images cannot be scaled up).
    The default maximum size depends on the format and the internal image dimensions (according to its media type).
  • Horizontal alignment option: one of left, right, center, none;
    Controls the horizontal alignment (and inline/block or floatting styles) of the image within a text (no default value).
  • Vertical alignment option: one of baseline, sub, super, top, text-top, middle, bottom, text-bottom;
    Controls the vertical alignment of a non-floatting inline image with the text before or after the image, and in the same block (the default vertical alignment is middle).
  • Link option: one of
    • link={

See Help:Contents