 | This help page is ahow-to guide. It explains concepts or processes used by the Wikipedia community. It is not one ofWikipedia's policies or guidelines, and may reflect varying levels ofconsensus. |
When a file such as an image, video or sound clip isuploaded to Wikipedia or the Wikimedia Commons, an associatedfile description page is created (also known as animage description page orfile page). The purpose of these pages is to provide information about the file: for example the author, date of creation, who uploaded the file, any modifications that may have been made, an extended description of the file's subject or context, where the file is used, and license or copyright information. In the case of an image, the file description page shows a higher resolution version of the image, if available.
To view the file description page for an image or video, click on the image itself. For a sound file, click on the information icon,
, near the sound clip link.
A file description page consists of five parts:
The following are examples of different types of files:
The editable section of the page is used to describe the file and provide additional information. Initially this section automatically contains the upload summary supplied when the file was first uploaded. The following are useful things to put on a file page:
E.g.: "Image of a goldfish in a small tank". This should not be an alternative text (seealternative text for images), but rather a description. This is useful for users who do not have direct access to the image, and is a temporary substitute for a properlongdesc tag.
If you downloaded the file from somewhere else, you should give details of source, author, etc. If you made the file based on other sources, you should cite them. SeeWikipedia:Cite your sources.
This is where you write the additional information about the file and how it was created, where, when, how, and by whom, as well as what the image is and what it is about.Example:"A picture I took underwater with a ___ camera, of a ____ fish." or "An original illustration of cars from the future and their bent wheels."
Most articles that use images will have acaption, but this will probably be shorter than the image's full description, and more closely related to the text of the article.
Keep in mind that everyone who sees this image in an article and clicks on it for more information (or to enlarge it) arrives at the file description page.
If you made the image yourself, there are certain questions which only you can answer. Because you may not be around to answer those questions later, you should include this information in the description page when you upload the image. This will help other editors to make better use of the image, and it will be more informative for readers.
For photographs:
For synthetic pictures:
Technical information for photographs:
Technical information for synthetic images:
All files must be provided with copyright information. This includes the author, the file's source and the file's license. All files must either be freely licensed or suitable for "fair use" (a low resolution image or only part of a song for example). You should choose the most appropriate tag fromWikipedia:File copyright tags. Please be aware that the copyright holder (the original creator of the file, their employer, or an official designee), not the uploader, decides on the licensing for the image, and that "fair use" of non-free files has a specific definition. Please readWikipedia:Copyrights,Wikipedia:Image use policy,Wikipedia:Fair use guideline, andWikipedia:Non-free content for information about what images are acceptable to upload. If you have a question about a specific image, you can ask atWikipedia:Media copyright questions.
Example:
If other versions (especially a larger version) of the same file exists, link to them.
Textfree versions are useful for using across language versions.
Files available on Wikipedia can be stored on Wikipedia or onWikimedia Commons. If a file is stored on Commons the following message will be shown on the file's description page:
 | This is a file from theWikimedia Commons. Information from itsdescription page there is shown below. Commons is a freely licensed media file repository.You can help. |
Any edits to the file's description page should be made on Commons, except in special circumstances, such as indicating the file has reached featured status on Wikipedia. To edit the Commons description page click on the "description page there" link. Like Wikipedia, anyone can edit the Commons. An account is not required.
When editing, theShow preview function only shows the editable part of a file page. The file itself, the file history and the file links are not displayed.
Files cannot be edited on Wikipedia or Commons. To edit a file it will need to be downloaded. Use a suitable software program (such as theGIMP orPhotoshop for images) to perform the modifications. Once the changes are completed upload the file to Wikipedia or Commons. The same filename may be used. This will overwrite the existing file.
The description text you supply during the upload process becomes the initial text of the image description page. (It also becomes theedit summary for the initial version of the file.)
On Wikipedia, please avoid adding a description in a language other than English. Instead, useinterlanguage links to link to the image description page on the appropriate-language wiki, where you should upload a second copy of the image for local use.
On Commons, a translation may be added to the description page.
If you have created an image yourself, and you have a higher-quality source file in a format such as .XCF, .PSD, or .AI, you may want to consider uploading that source file so that other users can more easily modify it if the need arises. Link the source file from the image description page. If the source file is too large to upload, try compressing it with a utility such asWinZip orgzip.
Wikipedia supports displayingSVG images, so it's generally best to upload SVG copies of images in place of raster renderings of them.
Files can be in the same category as other pages, but are treated separately: on the category page they are not included in the count of articles in the category, and they are displayed in a separate section, with for each a thumbnail and the name, seecategory page. A file category is typically a subcategory of the general category about the same subject, and a subcategory of a wider file category. OnWikimedia Commons there are essentially only files.
For categorizing a new file, the file page does not even have to be edited: the category tag can simply be put in theupload summary. Many images can be categorized in one of the subcategories ofCategory:Wikipedia images by subject. You might need to poke around the category hierarchy a bit to find the right place.
In English Wikipedia, the file page for a media file namedF is at <http://en.wikipedia.org/wiki/File:F>, and it can be accessed using theWiki markup[[:File:F]]. A media file's name can be determined from itsURL: it is always the URL's last or second-from-last component. For example, a flag image
might have the following URL:
This URL's second-from-last component is "Flag_of_France.svg", so the corresponding file page isFile:Flag_of_France.svg.
The URL of an image can often be determined by asking a browser to display the image's properties, and similarly for other media files. Sometimes, however, you may need to view theHTML of the page containing a media file to determine the file's URL. For example, in standard browsers the default English Wikipediaskin displays at upper left a puzzle-globe image, which takes you to theMain Page if you click on it; to find this image's file page, look in this page's HTML for the following:
This HTML contains a URL whose last component is "Wiki.png", and the corresponding file page is thereforeFile:Wiki.png.
