විකිපීඩියා:Extended image syntax

This editing guideline documents the syntax used to insert pictures and other media files into Wikipedia pages. The same syntax is used regardless of whether a file is from Wikipedia or Wikimedia Commons. New editors are encouraged to also see the picture tutorial and the simple guide for beginners.

Brief syntax

In brief, the syntax for displaying an image is:
[[File:Name|Type|Border|Location|Alignment|Size|link=Link|alt=Alt|page=Page|lang=Langtag|Caption]]

Plain type means you always type exactly what you see. Bolded italics means a variable.

Only Name is required. Most images should use "[[File:Name|thumb|alt=Alt|Caption]]" and should not specify a size. The other details are optional and can be placed in any order.

Type

"thumb" (or "thumbnail"; either can be followed by "=filename"), "frame" (or "framed"), or "frameless". Displays the image with specific formatting (see below).

Border

"border". Put a small border around the image.

Location

"right", "left", "center" or "none". Determine the horizontal placement of the image on the page. This defaults to "right" for thumbnails and framed images.

Alignment

"baseline", "middle", "sub", "super", "text-top", "text-bottom", "top", or "bottom". Vertically align the image with respect to adjacent text. This defaults to "middle".

Size

"upright" or "upright=factor". Scale a thumbnail from its default size by the given factor (default 0.75), rounding the result to the nearest multiple of 10 pixels. The "upright" option must be used along with the "thumb" or "frameless" parameter. Alternatively, and only where absolutely necessary, users' preferences may be disregarded and the size of the image fixed by specifying a size in pixels: "Widthpx" or "xHeightpx" or "WidthxHeightpx". Scale the image to be no greater than the given width or height, keeping its aspect ratio. Scaling up (i.e. stretching the image to a greater size) is disabled when the image is framed.

Link

Link the image to a different resource, or to nothing.

Alt

Specify the alt text for the image. This is intended for visually impaired readers. See WP:ALT for how this should typically differ from the caption.

Page

Specify a page other than 1 to use for the thumbnail image in multipaged files.

Langtag

Specify the IETF langtag for switch-translated SVG files. Some SVG files are multilingual; this parameter specifies which language to use. The langtag should be all lowercase (e.g., zh-hans rather than zh-Hans). Defaults to current Wikipedia language in article namespace or en in other namespaces. See {{Translate}}.

(Caption text)

Not a keyword, the actual caption text. Must be last option. This is visible if "thumb" attribute is used, but may be displayed on mouseover in other cases.

Detailed syntax

The image syntax begins with "[[", contains components separated by "|", and ends with "]]". The "[[" and the first "|" (or, if there is no "|", the terminating "]]") must be on the same line; other spaces and line breaks are ignored if they are next to "|" characters or just inside the brackets. Spaces or line breaks are not allowed just before the "=" in the following options, and may have undesirable side effects if they appear just after the "=". Do not terminate with the code |]]; this will be taken as an empty caption and override any real caption.

Type

One of these options may be specified to control whether or not the image is scaled and/or given a border. For options that automatically scale the image, it's usually to 220px; logged-in users can modify this (at "Thumbnail size" under මනාප → Appearance → Files). This is important to users with (e.g.) limited vision. If this is too large or small the upright attribute can be used. Specifying a fixed size in pixels overrides all of this, but is unfriendly to users who need a larger image.

thumb (or thumbnail)

Automatically scale the image, and put a box around it. Show a caption if specified. Float the image on the right unless overridden with the location attribute. With an operand, e.g., "thumb=Example.png", the operand names an image that is used as the thumbnail, ignoring any size specification.

frame

Preserve the original image size, and put a box around the image. Show any caption below the image. Float the image on the right unless overridden with the location attribute. Note: Any size options specified will be ignored and flagged as a 'bogus file option' by the Linter.

frameless

Automatically scale the image up or down. Place it inline with the text unless overridden with the location attribute.

Nothing specified

Preserve the original image size, and do not add a border around the image. Do not show a caption. If no alt text is specifically requested, use the requested caption as alt text. This option is almost exclusively used in templates.

Border

border

Generate a one-pixel border around the image. This has an effect only around unframed images (those without |thumb and |frame), as framed images always have borders.

Location

One of these options may be specified to control the position of the image. For examples of how all this works, see Examples of location parameter.

right

Place the image on the right side of the page. The article text that follows the image flows around the image. This is the default when thumb or frame is used.

left

Place the image on the left side of the page. The article text that follows the image flows around the image, but there may be formatting issues with lists and indented text (see § Interaction between left-floating images and lists).

center

Place the image in the center of the page. The article text that follows the image is placed below the image.

none

Place the image on the left side of the page. The article text that follows the image is placed below the image.

Nothing specified, and neither thumb nor frame

The image is placed inline with the text, like this.

Vertical alignment

One of these options may optionally be specified to control the vertical alignment of the image with respect to adjacent text.
These vertical alignment options apply only to plain images, which do not cause breaks and are not floated (that is, they do not work with images that need text to flow around them. To make text flow around an image, place the image preceding the text and use the thumb parameter).

In the following list, each option's explanation is preceded by what File:Flag of Hungary vertical.svg looks like when aligned using the listed option, using the markup
of [[File:Flag of Hungary vertical.svg|option|frameless|upright=0.1|link=|alt=]]

middle:
(This is the default.) Align the vertical middle of the image with the baseline of the text plus half the x-height of the text, so that the image is vertically centered around a lower case "x" in the text.

baseline:
Align the bottom of the image with the baseline of the text.

sub:
Align the bottom of the image to the same level that the bottom of a subscript would be, such as the bottom of the "2" in "X₂".

super:
Align the bottom of the image to the same level that the bottom of a superscript would be, such as the bottom of the "2" in "X²".

text-top:
Align the top of the image to the top of the text. This is often a bit higher than the top of a capital letter, because of ascenders in letters like lower-case "h".

text-bottom:
Align the bottom of the image to the bottom of the text. This is somewhat lower than the baseline, because of descenders in letters like lower-case "y".

top:
Align the top of the image to the top of the line containing the text. Normally this is slightly higher than the top of the text, to make space between lines of text.

bottom:
Align the bottom of the image to the bottom of the line containing the text. Normally this is slightly lower than the bottom of the text.

Size

Any or none of these options may be specified to control the size of the image. In the case of images with captions, if the image is already smaller than the requested size, then the image retains its original size (it is not enlarged). In the case of images without captions, the image will be enlarged or reduced to match the requested size. Sizing is disabled when the type 'frame' is use, with the size options being flagged as a bogus file option at Special:LintErrors.

The default thumbnail width can be set in the preferences, so specifying in px is not recommended in order to respect the users' preferences, which may be important for accessibility. Exceptions can, of course, be made, but do try to use upright or the default if possible.

Implementation details

Specifying a size does not just change the apparent image size using HTML; it actually generates a resized version of the image on the fly and links to it appropriately. This happens whether or not you specify the size in conjunction with "thumb". This means the server does all the work of changing the image size, not the web browser of the user. Having the server do all the work means faster downloading of pages. It also means that larger images can be stored on the server without any slowdown by the browser (especially on dial up telephone lines). Only the data for the actual size on the page is transmitted. An exception is animated GIF images. Animated GIF images are not processed by the server. When a smaller size is specified the original full sized animated GIF image is served. Whether the animated GIF image is subsequently scaled to fit the allotted space belongs to the capabilities of the receiving browser. Resizing an animated GIF image will significantly reduce its quality, without any reduction of download time. When there are two or more "size" options of the same type, only the last one is valid. However, if both an upright and an absolute size are used together, the absolute size always takes precedence, regardless of where it appears in the options.

(nothing specified)

For thumbnails, use the size specified in preferences for logged in users, and use a size determined by resolution for users who are not logged in. For non-thumbnails, use the native size of the image.

upright or upright=factor

Adjust a thumbnail's size to factor times the default thumbnail size, rounding the result to the nearest multiple of 10. For instance, "upright=1.5" makes the image larger, which is useful for maps or schematics that need to be larger to be readable. The parameter "upright=1" returns the same size as thumbnail width, and "upright=0.75" is functionally identical to "upright" alone. If you set Factor equal to the image's aspect ratio (width divided by height) the result is equivalent to scaling the height to be equal to the normal thumbnail width.

The upright option only works with the thumb or frameless parameter (see Type).

Widthpx

(E.g. 100px) Scale the image to make it the specified number of pixels in width, and scale the height to retain the original aspect ratio.

xHeightpx

(E.g., x150px) Scale the image to make it the specified number of pixels in height, and scale the width to retain the original aspect ratio.

WidthxHeightpx

(E.g. 100x150px) Scale the image to be no wider and no higher than the specified number of pixels. The image will keep its original aspect ratio.

Link

මේවාත් බලන්න: Wikipedia:Images linking to articles

|link=Page

Ordinarily, clicking on an image takes the reader to the image description page. The link option allows the reader to be taken instead to a different page, such as a fuller image from which the thumbnail was cropped, or to a full document of which the thumbnail was a single page (or crop of a single page). Do not enclose the page name in square brackets. If Page is a URL, the reader will be taken outside the project; this is not normally done in article space.

|link= (alone)

Disables the link so that clicking on the image does nothing.

|link= affects only what happens when the image itself is clicked; |thumb images carry a little rectangle-rectangle icon in the caption area, and clicking that always leads to the image description page. Except for public-domain images, it must always be possible for the reader to reach the image-description page, so |link= should be used only with |thumb images.

|link= cannot be used with |frame.

To disable all linking from, and description of, a purely decorative image – so that it's ignored by screen readers – use "|link=|alt=" with no arguments for either parameter.

Alt text and caption

Zero or more of these options may be specified to control the alt text, link title, and caption for the image. Captions may contain embedded wiki markup, such as links or formatting. See Wikipedia:Captions for discussion of appropriate caption text. See Wikipedia:Alternative text for images for discussion of appropriate alt text. Internet Explorer displays the link title as a tooltip but other browsers may not.

Hint: to force the caption to be written (underneath the picture) and not just appear as "hover text" even when you wish to resize the image, specify "thumb". If you specify "frame" the caption does appear but any resizing (such as "125px") is ignored.

alt=Alt

Use Alt as the alt text for the image.

Caption

(the last option that is not recognised as some other part of the image syntax): How this text is used depends on the image type. When the type has a visible caption ("thumbnail", "thumb", "frame" or "framed") then this text appears as a caption below the image. Otherwise, (if the image type is unspecified or is "frameless"), this text is used for the link title provided the link has not been suppressed with "|link=", and also for the alt text provided an explicit alt=Alt has not been supplied.

The actual alt text for the displayed image will be one of the following, in order of preference:

1. The explicitly requested Alt, if any;
2. The explicitly requested Caption, if the image type has no visible caption;
3. The empty string, if there is an explicitly requested Caption and the image type has a visible caption.
4. The image file name if there is no explicitly requested Alt or Caption. This is never a satisfactory option.

It is possible to specify the link title text only for images with no visible caption (as described above). However, as not all browsers display this text, and it is ignored by screen readers, there is little point.

Note: alt is supported only for images. Audio and video files should use timed text.

Class

class=

Used to insert any HTML classes for image. This has an effect only for some specific classes listed in Wikipedia:Catalogue of CSS classes, or some classes produced by TemplateStyles.

• The special class class=notpageimage will exclude the image from being selected by the Page Images algorithm.^{(phab:T301588)}

Page

Boléro: page 2 from the score

Normally page 1 from a PDF or DjVu file is used to generate the thumbnail. A different page can be used with the parameter |page=: [[File:IMSLP01578-Ravel - Bolero Full Score Durand 1929.pdf|thumb|page=2|''Boléro'': page 2 from the score]]:

Examples

Note: This section does not display properly on the mobile version of Wikipedia

Using the basic syntax

The most basic example uses the syntax [[File:Westminstpalace.jpg|Alt text]]. This does not scale the image or allow text to wrap around it. This is not normally appropriate in an article.

This is rendered inline, and the specified text is used as the image's alt attribute (alternate text for programs which cannot display images, such as screen readers) and as the title attribute (supplementary text, often displayed as a tooltip when the mouse is over the image). See Wikipedia:Captions for discussion of appropriate caption text. See Wikipedia:Alternative text for images for discussion of appropriate alt text.

Above, the image of the Thames was put into its own paragraph. This isn't mandatory; images can sit inline in text, as shown below.

text text text text text text
[[File:Westminstpalace.jpg|150px|alt=A large clock tower and other buildings line a great river.|The Palace of Westminster]]
text text text text text
[[File:tst.png|100px|alt=Tiny globe|This is a globe.]]
text text text text

gives

text text text text text text text text text text text text text text text

Keeping the original size, with a caption

To display an image as uploaded with a caption use [[File:Westminstpalace.jpg|frame|none|alt=Alt text|Caption text]].

Caption text

Aligning thumbnails to fit into text

The Palace of Westminster

This is the style most familiar to readers. As shown on in the example image, the image is framed, is an appropriate size, and has text able to wrap around it. A caption is properly integrated.

The important part of this is the thumb parameter: [[File:Westminstpalace.jpg|thumb|upright=0.4|left|alt=A large clock tower and other buildings line a great river.|The Palace of Westminster]] (as shown in the left). For details of these options, see previous sections.

Examples of the location parameter are below:

The many-floating-objects problem

මේවාත් බලන්න: WP:STACKING

There is a floating issue in HTML/CSS that prevents certain images (or other floating objects) from floating above others. It occurs only if:

• there are multiple floating objects on one side of the page
• the floating object on the other side of the page comes after the other ones in the source code

The first floating object on the latter side of the page won't float above the last floating object on the former (see examples below). Solutions include alternating between left and right in aligning images or other floating objects (not shown); setting to "none" the alignment of the one that won't float above the others (as demonstrated "live" on the population table here); and using a gallery tag for large numbers of images in a single section. Per , images should be inserted so their markup is in the correct section, even if that can cause them to float into the next section.

Problematic code:

==Section 1==
[[File:Westminstpalace.jpg|thumb|70px|right|Figure 1.1 ('''right''')]]
[[File:Westminstpalace.jpg|thumb|70px|right|Figure 1.2 ('''right''')]]
[[File:Westminstpalace.jpg|thumb|70px|right|Figure 1.3 ('''right''')]]
[[File:Westminstpalace.jpg|thumb|70px|right|Figure 1.4 ('''right''')]]
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
==Section 2==
[[File:Westminstpalace.jpg|thumb|70px|left|Figure 2.1 ('''left''')]]
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

Using "upright"

The "upright" option is about 75% of thumbnail width.

The "upright=1.5" option

The upright option works in combination with the thumbnail or thumb option to resize an image to about 75% of the width of a plain thumbnail. This is useful for displaying images in "portrait" orientation, since such tall and narrow images tend to look too large when scaled to the same width as "landscape" oriented images. The upright option scales larger or smaller in step with user screen resolution. The relative size can be determined with a multiplier such as upright=x. If x=1 then the image is standard thumbnail width. E.g., <lang="wikitext" inline>

The "upright" option is about 75% of thumbnail width.

</syntaxhighlight> (shown on the left) and [[File:Westminstpalace.jpg|thumb|upright=1.5|right|alt=A large clock tower and other buildings line a great river.|The "<code>upright=1.5</code>" option]] (shown on the right).

Using frame

The Palace of Westminster

With this option, the embedded image is shown with its actual size enclosed by a frame, regardless of the "thumb" or "size" attribute, and the caption, if any, is visible in the frame. Without the options left, center, and none, the image is normally on the right: [[File:Westminstpalace.jpg|frame|alt=A large clock tower and other buildings line a great river.|The Palace of Westminster]].

With none of the options other than sizepx and alternate (caption) text, an embedded image is rendered inline.

Using alignment "none" thumbnails in tables

The option none can be used to have thumbnails without left- or right-alignment. This is probably most useful for tables. This is an example:

London's palaces

Palace of Westminster	From the Thames	[[File:Westminstpalace.jpg|thumb|none|100px|alt=A large clock tower and other buildings line a great river.|From the Thames]]
Buckingham Palace	Queen's home	[[File:Buckingham Palace 2003.jpg|thumb|none|100px|alt=Grand city building below beautiful blue sky and clouds|Queen's home]]

Formatting and links in captions

This is the Palace of Westminster in London

You can put links in the caption text, as demonstrated in this image:

[[File:Westminstpalace.jpg|right|thumbnail|alt=A large clock tower and other buildings line a great river.|This is the [[Palace of Westminster]] in London]]

Just make sure the number of opening and closing square brackets are right. One extra or missing would mean the entire image syntax line would not work.

This is the
Palace of Westminster
in London

Additional caption formatting options are possible; all normal formatting should just work.

[[File:Westminstpalace.jpg|right|thumbnail|alt=A large clock tower and other buildings line a great river.|<div style="text-align: center">This is <span style="color: green">the </span><br /> [[Palace of Westminster]]<br /> '''in <span style="color: red">London</span>'''</div>]]

Interaction between left-floating images and lists

List bullets and numbers can sometimes overlap left-floating images, and indented lines may not appear correctly when next to left-floating images. For example:

Markup	Renders as
[[File:Westminstpalace.jpg|left|thumb|100px]] <ol> <li>list item A1 <ol> <li>list item B1</li> <li>list item B2</li> </ol>continuing list item A1 </li> <li>list item A2</li> </ol>	list item A1 list item B1 list item B2 continuing list item A1 list item A2
[[File:Westminstpalace.jpg|left|thumb|100px]] First line :Second line ::Third line :::Fourth line	First line Second line Third line Fourth line

The {{flowlist}} template enables lists to stay clear of these left-floating objects:

[[File:Westminstpalace.jpg|left|thumb|100px]]
{{flowlist}}
  <ol>
    <li>list item A1
      <ol>
        <li>list item B1</li>
        <li>list item B2</li>
      </ol>continuing list item A1
    </li>
    <li>list item A2</li>
  </ol>
{{endflowlist}}

{{flowlist}}
First line
:Second line
::Third line
:::Fourth line
{{endflowlist}}

Renders as:

1. list item A1
   1. list item B1
   2. list item B2
   continuing list item A1
2. list item A2

සැකිල්ල:Flowlist First line

Second line

Third line

Fourth line

This method will not work inside of a table, and if your list is longer than the floated element, then the list will not flow around the image like normal, but instead be one block, leaving white space below the floated element.

Overlaying annotations on an image

In some cases, it may be desirable to add clickable annotations to an image. The templates Template:Annotated image and Template:Annotated image 4 exist for this purpose.

These templates allow wikitext (e.g., regular text, wikilinks, allowed HTML code, references, and other templates) to be included on the image itself. They may also be used to crop an image so as to focus on a particular portion of it, or alternatively, expand the white area around an image for better placement of wikitext.

Annotated image template examples

Spine Dorsal Upper lateral Lower lateral Ventro-lateral        = Frontal Example of an annotated diagram (using Template:Annotated image) that has clickable wikilinks and overlaid text

Spine Dorsal Upper lateral Lower lateral Ventro-lateral        = Frontal Example of an annotated diagram (using Template:Annotated image 4) that has clickable wikilinks and overlaid text

The image and caption as a thumb, sans annotations

There is also the template {{Overlay}}:

1 2 3 4 5 6 7 7

1 Mount Stillwell 2 Kangaroo Ridge 3 Little Stillwell 4 Kangaroo Ridge Triple Chairlift mid station 5 Basin Poma (J-Bar) unload point 6 Ego flats 7 Snow gums

Only item 7 is linked here.

Cancelling floating-around-image mode

After having had an image floating next to text, putting further text below it and again using the full width can be done with the following markup. This blocks an image from appearing next to the material following this markup, possibly due to aesthetic reasons or a change in topics.

<br style="clear:both" />

For legacy align="right" (etc.) floating this isn't good enough; legacy browsers would ignore inline CSS. To cancel floating under all conditions the following markup (valid XHTML 1.0 transitional) works:

<br clear="all" />

The same code can be issued by using template {{clear}} or {{Clr}} or {{-}} in certain namespaces (en, meta).

VR images

To display VR photographs (aka 360-degree panoramas or photospheres), use {{PanoViewer}}.

Linking to the image without displaying it

If you don't want to show or display the image but rather just want to make a link to the description page for an image, use a leading colon before "File:" in an intra-wiki link, like this: [[:File:STS-32 crew.jpg|STS-32 crew]] which yields: STS-32 crew.

Sound files

Often, sound files are presented on Wikipedia pages using {{Listen}} or its related templates. However, it is also possible to present an audio file without using any template. Similar syntax to images can be used to transclude audio or video files into pages.

	Code	Output
1.	[[File:Accordion chords-01.ogg]]
2.	[[File:Accordion chords-01.ogg|frameless|upright=1.3]]

Note that none of these examples provide links to Wikipedia:Media help, and example 2 provides no navigable links to the file itself. Consequently, whenever this method is used, the {{Inline audio}} template must be shown on that page, and the presentation of the play buttons must be accompanied by clickable links to the sound file itself. Examples:

	Code	Output
1.	[[File:Accordion chords-01.ogg|frameless|upright=0.4|left]] [[:File:Accordion chords-01.ogg|Accordion chords]]	Accordion chords
2.	[[:File:Accordion chords-01.ogg|Accordion chords]] [[File:Accordion chords-01.ogg|90px|right]]	Accordion chords
3.	[[:File:Accordion chords-01.ogg|Accordion chords]] [[File:Accordion chords-01.ogg|90px]]	Accordion chords

Note that vertical alignment of the play button does not work, nor is it possible to present the play button inline with text; consequently, the most pleasing arrangement is achieved with examples 1 or 3.

There is also a parameter to preset the player to start at a time other than 0:00.

	Code	Output
1.	[[File:Accordion chords-01.ogg|start=0:05]]

MIDI

Since June 2019, MIDI files can be played just like other sound files. See: Help:Score.

Bagatelles, Op. 33, no. 1

[[File:Beethoven Op. 33 no. 1.mid|thumb|[[Bagatelles, Op. 33 (Beethoven)|''Bagatelles'', Op. 33]], no. 1]]

Video files

To display a video as uploaded with a caption use [[File:First flights in aviation history.ogg|frame|none|Caption text]].

Caption text

Initial still image

"|thumbtime=Time". Use the frame from the video at the given time as the initial still image. Time is either a number of seconds, or hours, minutes and seconds separated by colons. Without a thumbtime parameter, a frame from the midpoint of the video is used by default. For instance, using the same video file as previously:

Man in suit tie and hat at 21 seconds. Time syntax using seconds only: "21".

Monoplane seen at 23 seconds. Time syntax using minutes and seconds: "0:23".

Landed biplane seen at 33 seconds. Time syntax using hours, minutes and seconds: "0:0:33".

Temporal media fragments

Starts at 5 seconds and ends playback at 7 seconds

This syntax allows you to play a segment of the video stream or set a start time. Hover over the player to see start time listed as 5s, press play and notice it stops playback at 7 seconds.

[[File:Weeding.ogv|thumb|upright=1.3|start=5|end=7|Starts at 5 seconds and ends playback at 7 seconds]]

Note: This is not yet supported by Safari and Internet Explorer.

Displaying small videos larger

To display a video larger than its uploaded size use "|thumb" and "|numberpx". This may be useful if the original video is very small but shows some important but small detail, but note that upscaling may create unexpected scaling artifacts. For example, the code

[[File:cal16x16check_vdnocnoafr1len2.avi.q10.ogv|inline|left]] [[File:cal16x16check_vdnocnoafr1len2.avi.q10.ogv|right|thumb|128px]]

displays the 16 pixels wide video at its original size on the left and eight times wider at the right (the squares should be all black or all white and the edges should be sharp — any blurriness or off-white colour is likely due to the browser or the Wikimedia server rendering):

inline

Thumbtime in a gallery

The thumbtime parameter can also be used inside a gallery (either with <gallery> tags or the {{Gallery}} template):

• Man in suit tie and hat at 21 seconds.
• Monoplane seen at 23 seconds.

Here is the wikicode that created it:

<gallery>
File:First flights in aviation history.ogg|thumbtime=21|Man in suit tie and hat at 21 seconds.
File:First flights in aviation history.ogg|thumbtime=0:23|Monoplane seen at 23 seconds.
</gallery>

See also

• Wikipedia:Images – For an overview of images in Wikipedia
• Wikipedia:Picture tutorial
• Wikimedia Commons (Commons Main Page), a free multimedia repository, that you can use directly in Wikipedia and the other Wikimedia projects. You can upload new images or use the stored ones.
• Commons:Commons:Video – Outline of videos on Commons; using, playing, policy, finding, converting and uploading
• Wikipedia:Creation and usage of media files – A how-to guide, old but still useful
• Wikipedia:Image use policy
• Wikipedia:Image markup with HTML – How to add images to articles, old school. Obsolete but interesting.
• Wikipedia:Finding images tutorial
• meta:Help:Images and other uploaded files
• mw:Extension:PagedTiffHandler – lossy parameter for tiff files