Is It Fair Use to Upload Scientific Figures to Wikipedia

English Wikipedia policy

This folio in a nutshell: Be very careful when uploading copyrighted images, fully depict images' origins and copyright details on their description pages, and try to make images as useful and reusable as possible.

This folio sets out the policies towards images—including format, content, and copyright problems—applicable on the English language-language Wikipedia.

For information on media in general (images, sound files, etc.), see Assistance:Creation and usage of media files. For information on uploading, see Wikipedia:Uploading images, or go directly to Special:Upload. For other legal and copyright policies, run into Wikipedia:Listing of policies § Legal.

Identifying usable images

Copyright and licensing

WP:IUP#COPYRIGHT
WP:IUPC

Before you upload an image, brand certain that the image falls in 1 of the four categories:

Own work: Yous ain all rights to the prototype, usually pregnant that you created it entirely yourself. In case of a photograph or screenshot, you lot must also ain the copyright for all copyright-protected items (e.g. statue or app) that appear in it (example, see below for details).
Freely licensed: Y'all can prove that the copyright holder has released the image under an acceptable gratis license (case, run across below for details). Annotation that images that are licensed for use only on Wikipedia, or only for non-commercial or educational use, or under a license that doesn't allow for the creation of modified/derived works, are unsuitable. Of import annotation: but because y'all did not have to pay coin for the image does not mean that it is "free content" or acceptable for utilize on Wikipedia. The vast bulk of images on the internet are copyrighted and cannot be used here – even if there is non a copyright find, it is automatically copyrighted from the moment of creation. When in doubt, practise not upload copyrighted images.
Public domain: Y'all can prove that the image is in the public domain, i.e. gratis of all copyrights (example, see below for details).
Fair use/not-free: You believe that the image meets the special weather condition for non-gratuitous content, which uncommonly allow the use of unlicensed material, and you tin provide an explicit not-free utilise rationale explaining why and how you intend to use information technology (example, run across below for details).

User-created images

Wikipedia encourages users to upload their ain images. All user-created images must be licensed under a complimentary license, such as a Creative Commons license, or released into the public domain, which removes all copyright and licensing restrictions. When licensing an paradigm, it is common practice to multi-license under both GFDL and a Creative Commons license.

Photographs

Such images can include photographs which yous yourself took. The legal rights for images generally lie with the photographer, not the field of study. Just re-tracing a copyrighted image or diagram does not necessarily create a new copyright—copyright is generated only by instances of "inventiveness", and not by the amount of labor which went into the creation of the piece of work.

Photographs of two-dimensional objects such equally paintings in a museum often exercise not create a new copyright (see the section on the public domain beneath), as, inside the United States, these are considered "slavish copies" without whatever creativity (meet Bridgeman Art Library five. Corel Corp.).

Photographs of 3-dimensional objects almost always generate a new copyright, though others may continue to concord copyright in items depicted in such photographs. Whether the photograph carries the copyright of the object photographed depends on numerous factors. For three-dimensional art and architecture such as buildings in public spaces, each land has unique liberty of panorama allowances that consider if such photographs are treated as derivative works of the object and thus copyrighted; Commons:Freedom of panorama outlines these clauses per jurisdiction. The shape and design of commonsensical objects, such as cars, furniture, and tools, are generally considered uncopyrightable, allowing such photos to exist put into the public domain or freely licensed; notwithstanding this does not extend to decorative features such as artistic elements on the object'due south surfaces like an artistic painting on a car's hood. If you have questions in respect to this, delight ask the regulars at Wikipedia talk:Copyrights.

Images with you, friends or family prominently featured in a mode that distracts from the image topic are not recommended for the main namespace. These images are considered self-promotion and the Wikipedia community has repeatedly reached consensus to delete such images. Using such images on user pages is allowed.

Some images may incorporate trademarked logos incidentally (or purposely if the image is either freely licensed, covered under freedom of panorama, or beingness too simple to be copyrightable). If this is the instance, delight tag it with {{trademark}}. Copyrighted elements may also be present in de minimis in photographs, where the copyrighted chemical element is visible but not the focus of the photograph. In such cases, de minimis copyrighted elements exercise not affect the copyright of the photograph; such a photo may still exist licensed freely. For example, a photograph of Times Square tin be considered free despite the numerous advertising signs in sight, as these ads are considered to be de minimis.

Diagrams and other images

User-fabricated images can also include the recreation of graphs, charts, drawings, and maps directly from available data, as long as the user-created format does not mimic the verbal style of the original work. Technical information is uncopyrightable, lacking inventiveness, just the presentation of data in a graph or chart can be copyrighted, and then a user-made version should be sufficiently different in presentation from the original to remain free. In such cases, information technology is required to include verification of the source(southward) of the original data when uploading such images. See, for instance File:Painted Turtle Distribution alternating.svg, File:Conventional xviii-wheeler truck diagram.svg.

Additionally, user-fabricated images may be wholly original. In such cases, the prototype should be primarily serving an educational purpose, and non equally a means of cocky-promotion of the user's artistic skills. The subject field to exist illustrated should be clearly identifiable in context, and should not be overly stylized. See for example File:Checker_shadow_illusion.svg.

When making user-fabricated diagrams or like images, try not to utilise color solitary to convey information, as it is inaccessible in many situations.

Free licenses

At that place are several licenses that run across the definition of "costless" here. Several Creative Commons (CC) license alternatives are available. Licenses which restrict the use of the media to not-turn a profit or educational purposes only (i.e. not-commercial use only), or which are given permission to announced simply on Wikipedia, are not free enough for Wikipedia's usages or goals and will be deleted.^[1] In short, Wikipedia media (with the exception of "fair employ" media—see beneath) should be every bit "free" every bit Wikipedia's content—both to keep Wikipedia'due south own legal status secure and to let as much re-use of Wikipedia content as possible. For example, Wikipedia can take images under CC-By-SA (Attribution-Share Alike) equally a costless license, but not CC-By-SA-NC (Attribution-Share Alike-Non-Commercial). A list of possible licenses which are considered "free plenty" for Wikipedia are listed at Wikipedia:Image copyright tags.

A list of websites that offer free images tin exist found at Wikipedia:Costless paradigm resources. If the place where yous found the image does not declare a pre-existing gratuitous license, notwithstanding allows apply of its content under terms commonly instituted by them, it must explicitly declare that commercial use and modification is permitted. If information technology does not then declare, you must assume that you may non apply the image unless you obtain verification or permission from the copyright holder.

GNU Gratuitous Documentation License

The GNU Free Documentation License (GFDL) is not permitted as the only acceptable license where all of the following are true:

The content was licensed on or after 1 August 2021. The licensing date is considered, not the creation or upload date.
The content is primarily a photograph, painting, drawing, audio or video.
The content is not a software logo, diagram or screenshot that is extracted from a GFDL software transmission.

GFDL content may still be usable under the non-free content policy. If a work that is not a derivative work with a GFDL license is used under a not-free rationale information technology does non have to be scaled downwardly, merely other not-free limitations volition nonetheless use.

Public domain

Public domain images are not copyrighted, and copyright police force does not restrict their use in whatsoever manner. Wikipedia pages, including non-English language language pages, are hosted on a server in the Us, so U.South. law governs whether a Wikipedia epitome is in the public domain.

Images may exist placed into the public domain by their creators, or they may exist public domain because they are ineligible for copyright or because their copyright expired. In the U.S. as of January one, 2022, copyright has expired on any work published anywhere earlier January one, 1927. Although U.S. copyrights take also expired for many works published since then, the rules for determining expiration are complex; run across When does copyright expire? for details.

In the U.S., reproductions of 2-dimensional public domain artwork practice not generate a new copyright; come across Bridgeman v. Corel. Scans of images lone practise not generate new copyrights—they merely inherit the copyright status of the image they are reproducing. For example, a directly-on photograph of the Mona Lisa is ineligible for copyright.

Works must commonly entail a minimum amount of inventiveness to exist copyrightable. Those that fail to meet this threshold of originality and are therefore not copyrightable, fall instead into the public domain. For instance, images that consist only of simple typeface are by and large public domain (though they may nonetheless be trademarked). Editors must be enlightened of the origin country of the image, equally the threshold of originality may vary significantly among jurisdictions. The U.S. has a high threshold, whereas the UK has a lower one, following a "sweat of the brow" standard. In such cases, an image that is copyrighted in its home country, but ineligible for copyright in the U.S. may be uploaded locally on the English language Wikipedia every bit a public domain epitome using a tag such as {{PD-USonly}}. This will help to preclude copying to Eatables, where media must be free both in the source country and the U.S.

If y'all strongly suspect an paradigm is a copyright infringement, you should list it for deletion; see Deleting images below. For example, an image with no copyright status on its file page and published elsewhere with a copyright notice should be listed for deletion.

Fair-use/Non-free images

Some usage of copyrighted materials without permission of the copyright holder tin can authorize equally fair use in the U.s.a. (but not in near other jurisdictions). However, since Wikipedia aims to be a free-content encyclopedia, non every image that qualifies equally off-white-use may be appropriate. As required by the Wikimedia Foundation to see the goals of a free content work, the English Wikipedia has adopted a purposely-stricter standard for off-white-use of copyrighted images and other works, called the non-free content criteria. In general, if the epitome cannot exist reused (including with redistribution and modification rights) by any entity, including commercial users, then the image must be considered not-free.

Use of copyrighted material under an invalid claim of a non-gratuitous rationale constitutes copyright infringement and is illegal. Media which are mistagged as non-gratis or are a flagrant copyright violation can be removed on sight. Editors who detect correctable errors in non-free tags or rationales are urged to fix them, if able. Voluntarily fixing such issues is helpful to Wikipedia, though many errors may exist impossible to fix, such as the original source or copyright possessor. A user may be banned for repeatedly uploading material which is neither free nor follows the required for non-gratuitous images.

Watermarks, credits, titles, and distortions

WP:WATERMARK

Costless images should not be watermarked, distorted, have any credits or titles in the image itself or anything else that would hamper their gratuitous use, unless, of course, the image is intended to demonstrate watermarking, distortion, titles, etc. and is used in the related commodity. Exceptions may be made for historic images when the credit or title forms an integral part of the composition. Historical images in the public domain sometimes are out of focus, display dye dropouts, dust or scratches or evidence of the press process used. All photograph credits should be in a summary on the image description folio. Images with watermarks may be tagged {{imagewatermark}}.

Privacy rights

When taking pictures of identifiable people, the subject'due south consent is not unremarkably needed for straightforward photographs taken in a public place, but is often needed for photographs taken in a private place. This blazon of consent is sometimes called a model release, and it is unrelated to the photographer'southward copyright.

Considering of the expectation of privacy, the consent of the subject area should normally be sought before uploading whatsoever photograph featuring an identifiable individual that has been taken in a private place, whether or non the subject is named. Even in countries that have no law on privacy, in that location is a moral obligation on u.s.a. not to upload photographs which infringe the subject'southward reasonable expectation of privacy. If you upload a self-portrait, your consent is presumed.

Bear in mind that EXIF metadata in uploaded images – such as fourth dimension data and the make, model, and location of the device capturing the image – is publicly visible.

Be aware that just considering a freely licensed image may be available at Commons, it may notwithstanding be inappropriate to utilize on the English language Wikipedia due to our policy on living persons. Commons is a shared media repository for Wikimedia Foundation projects, each of which may take its own content policies, and many of which differ significantly from those of the English Wikipedia.

What are public and private places?

For the purposes of this policy, a individual identify is a place where people accept a reasonable expectation of privacy, while a public place is a identify where people take no such expectation.

Examples of private places

Within any individual residence
Inside whatsoever restroom, dressing room, locker room
Any medical facility
A private area (hotel room, tent) within an otherwise public place (hotel, campground)
In the parts of a building not freely accessible to the general public (e.thousand. a private office)

Examples of public places

On a street or sidewalk
Outdoors in an easily visible part of private property
In parks and recreation areas open to the public
At an event where people are openly taking pictures
Inside buildings in areas freely attainable to the public (east.g. a foyer or lobby)

Legal issues

At that place are a diverseness of not-copyright laws which may touch on the photographer, the uploader and/or the Wikimedia Foundation, including defamation, personality rights, trademark and privacy rights. Because of this, certain uses of such images may nonetheless be prohibited without the agreement of the depicted person, or the holder of other non-copyright related rights.

Defamation may arise not simply from the content of the epitome itself but also from its description and title when uploaded. An image of an identified unknown individual may be unexceptional on its own, but with the title "A drug-dealer" at that place may be potential defamation issues in at least some countries.

Some other factor to consider is the established reliability and by respect for copyright of the source of publication of a photograph. Some tabloid newspapers and magazines take had legal problems with respect of original copyright for sake of getting their stories out, and images from such sources may be problematic to use on Wikipedia for both legal and moral reasons.

There are a limited number of types of images that are illegal as they are not considered protected oral communication within the United States' First Amendment, such every bit child pornography. These images are unacceptable under the Wikimedia Foundation'southward terms of use, and may never be uploaded to whatsoever Wikimedia server. Users who try to upload such images will likely be banned from utilize of any Wikimedia Foundation server.

Moral bug

Non all legally obtained photographs of individuals are acceptable. The following types of image are normally considered unacceptable:

Those that unfairly demean or ridicule the bailiwick
Those that are unfairly obtained
Those that unreasonably intrude into the bailiwick's private or family unit life

These are categories which are matters of mutual decency rather than law. They notice a reflection in the diction of the Universal Declaration of Human Rights, Article 12: "No ane shall be subjected to capricious interference with his privacy, family unit, home or correspondence, nor to attacks upon his award and reputation".

The extent to which a particular photograph is "unfair" or "intrusive" will depend on the nature of the shot, whether it was taken in a public or private place, the title/description, and on the type of subject area (e.grand. a celebrity, a not-famous person, etc.). This is all a affair of degree. A secretly taken shot of a celebrity caught in an embarrassing position in a public place may well be acceptable to the community; a similar shot of an anonymous fellow member of the public may or may not exist acceptable, depending on what is shown and how it is presented.

Examples

Ordinarily exercise not require consent of the subject

A street performer during a performance
An anonymous person in a public place, especially every bit office of a larger crowd
Partygoers at a big private party where photography is expected
A basketball player competing in a match open up to the public

Ordinarily do crave consent

An identifiable child, titled "An obese girl" (potentially derogatory or demeaning)
Partygoers at a individual political party where photography is not permitted or is not expected (unreasonable intrusion without consent)
Nudes, underwear or swimsuit shots, unless obviously taken in a public place (unreasonable intrusion without consent)
Long-lens images, taken from afar, of an private in a individual place (unreasonable intrusion)

Alternatives

If an image requires consent, but consent cannot be obtained, there are several options. For case, identifying features can be blurred, pixelated, or obscured so that the person is no longer identifiable. As well, the movie may be re-taken at a different angle, perhaps and then that the subject area'south face is not visible.

Uploading images

Privacy disclosure argument: for image file formats JPG and PNG all EXIF metadata in the uploaded prototype is publicly visible on all Wikipedia and associated websites. This includes your location, the date and time the paradigm was recorded and the make and model of your camera or smartphone.

Format

WP:IUP#FORMAT

Generally:

Drawings, icons, logos, maps, flags and other such images are preferably uploaded in SVG format equally vector images. Images with large, uncomplicated, and continuous blocks of color which are not available every bit SVG should be in PNG format.
Software screenshots should exist in PNG format.
Photos and scanned images should be in JPEG format, though a PNG may be useful every bit well, especially for software screenshots when only a raster image is available (JPEGs are a lossy image format, and PNGs allow further editing without degrading the image).
TV- and moving picture screenshots should exist in JPEG format.
Inline animations should be in animated GIF format.
Video should exist in Ogg/Theora or WebM format.

Mostly speaking, you should not contribute images consisting solely of formatted or unformatted text, tables, or mathematical formulas. In nigh cases these can instead exist typed direct into an article in wiki markup (maybe using MediaWiki's special syntax for tables, math). This volition make the information easier to edit, equally well as arrive accessible to users of screen readers and text-based browsers.

In general, if you have a good image that is in the wrong format, convert information technology to the correct format earlier uploading. However, if you find a map, flag, etc. in JPEG format, merely convert it to PNG if this reduces the file size. For further advice on converting JPEG to PNG, meet Wikipedia:How to reduce colors for saving a JPEG as PNG.

Nearly of the maps on the CIA World Factbook website were coded equally JPEG, simply are now coded as GIF. To update these photos, download the GIF picture from the CIA Factbook, resave it in PNG format, and upload it to Wikipedia.

Try to avoid editing JPEGs too frequently—each edit creates more loss of quality. If you tin can find an original of a photo in 16-bit or 24-bit PNG or TIFF, edit that, and save as JPEG before y'all upload. A limited variety of edits (crops, rotation, flips) tin be performed losslessly using jpegcrop (Windows) or jpegtran (other); endeavor to use this where possible.

JPEG files should not utilise arithmetic coding due to limited browser support. Delight prefer Huffman coding for JPEG files instead.

Avoid images that mix photographic and iconic content. Though CSS makes it easy to use a PNG overlay on top of a JPEG image, the Wikipedia software does not let such a technique. Thus, both parts must be in the same file, and either the quality of ane part will suffer, or the file size will exist unnecessarily large.

SVG support is implemented every bit of September 2005 (see meta:SVG epitome support). The SVG is not straight given to the browser; instead, the SVG file is dynamically rendered as a PNG at a given size, and that PNG is given to the browser.

Images containing text

If you create an image that contains text, please too upload a version without whatever text. It volition help Wikipedians interpret your prototype into other languages.

SVG images tin contain text in multiple languages in a single file (using a switch element). Run across Eatables:Aid:Translation tutorial § SVG files.

Cropping

Within reason, crop an image to remove irrelevant areas. But practise non "throw away data"; for example, if a photograph shows George Washington and Abraham Lincoln together at a birthday party, and the article you're working on requires simply Lincoln, consider uploading both the original image and the crop of Lincoln. Too, if an image has captions every bit an inherent office of the artwork (equally with book illustrations, early cartoons, many lithographs, etc.), don't crop them, or upload the original uncropped version equally well.

Animated images

WP:IUP#ANIM

It may be preferable to catechumen a long or color-rich animation to Ogg/Theora format instead of GIF. Ogg does non allow an animation to play automatically on page loading, but it tin can comprise audio and has more often than not better resolution.

Inline animations should exist used sparingly; a static epitome with a link to the blitheness is preferred unless the blitheness has a very small file size. Keep in mind the problems with print compatibility mentioned elsewhere on this page.

Uploaded image size

WP:FILESIZE

Wikipedia and its sister projects are repositories of knowledge, so images should be uploaded at high resolution whether or non this seems "necessary" for the apply immediately contemplated‍—‌"saving server space" is non a valid consideration in general, though in that location is a one,000MB (iGB) limit. Exception: If the image is copyrighted and used nether fair utilize, the uploaded image must be as low-resolution equally possible consistent with its fair-use rationale, to prevent employ of Wikipedia's copy as a substitute for the original work.

The servers automatically handle the scaling of images (whatever their original size) to the sizes chosen for in particular manufactures, then it is neither necessary nor desirable to upload dissever reduced-size or reduced-quality "thumbnail" versions, although compressing PNGs may be useful.

Image titles and file names

WP:IUP#NAME

Descriptive file names are as well useful. A map of Africa could be called "Africa.png", but quite likely more maps of Africa will be useful in Wikipedia, so it is proficient to be more specific in a meaningful way, e.g. "Africa political map January. 2012.png", or "Africa political map with red borders.png". Check whether there are already maps of Africa in Wikipedia. Then decide whether your map should supervene upon one (in each article that uses information technology) or be additional. In the outset example give it exactly the same name, otherwise a suitable other name. Avoid special characters in filenames or excessively long filenames, though, as that might brand it difficult for some users to download the files onto their machines. Every letter of a file name – including the extension – is case sensitive: "Africa.png" is considered singled-out from "Africa.PNG". For uniformity, lower case file name extensions are recommended.

You may use the same name in the instance of a different image that replaces the old one, and also if you make an improved version of the same prototype – perhaps a scanned image that you scanned once more with a improve quality scanner, or you used a better way of reducing the original in calibration – then upload information technology with the same championship as the onetime one. This allows people to easily compare the two images, and avoids the need to delete images or change manufactures. Nevertheless, this is non possible if the format is changed, since then at least the extension part of the proper noun has to be changed.

Required information

WP:IUP#RI

An Image copyright tag
Description: The subject of the prototype. This should explain what the picture is of (ideally linking the article(due south) it would exist used on), and other identifying information that is non covered by the bullets below. For instance, a picture of a person taken at a public result volition often place that event and the date of the consequence. (This is dissimilar from the paradigm's explanation or alt-text, and might exist more descriptive than these.)
Origin (source): The copyright holder of the paradigm or URL of the web folio the image came from

For an image from the net the URL of an HTML page containing the image is preferable to the URL for just the paradigm itself.
For an image from a book this is ideally folio number and total bibliographic data (writer, title, ISBN number, page number(due south), date of copyright, publisher information, etc.).
For a self-created image, state "Ain work" (in addition to an appropriate copyright tag, such every bit {{cocky}} or {{PD-self}}).

Author: The original creator of the image (especially if different from the copyright holder).
Permission: Who or what law or policy gives permission to post on Wikipedia with the selected prototype copyright tag
Date the image was created, if available; a full date, if available, is meliorate than simply the year
Location at which the epitome was created, if applicable and available. This can be as specific as a GPS-derived longitude and breadth.
Other versions of this file on Wikipedia eastward.g. cropped or uncropped, retouched or unretouched.
Rationale for utilise (but required for non-gratuitous images). A dissever not-free rationale is required for each use of the image on the English Wikipedia. Details of what is required for the non-free rationale is described in more depth on the non-free content page.

Adding images to articles

Epitome content and selection

WP:IMGCONTENT

The purpose of an image is to increase readers' understanding of the article's subject area matter, usually by direct depicting people, things, activities, and concepts described in the article. The relevant aspect of the epitome should exist clear and primal. Guidance for selecting images when multiple potential images are available tin be found at Wikipedia:Transmission of Fashion/Images, keeping in mind that Wikipedia desires freely licensed images over not-gratuitous ones when they otherwise serve the same educational purpose.

Wikipedia is not censored, and explicit or even shocking pictures may serve an encyclopedic purpose, but editors should have intendance not to utilize such images simply to bring attention to an article.

Placement

See Wikipedia:Extended image syntax for recommendations on the best markup to employ. Images should be placed in manufactures following Wikipedia:Manual of Style/Images. For ideas and examples of how to place images, see Help:Pictures.

Paradigm galleries

WP:IG
WP:GALLERY

In articles that have several images, they are typically placed individually near the relevant text (meet MOS:IMAGELOCATION). Wikipedia is not an image repository. A gallery is non a tool to shoehorn images into an article, and a gallery consisting of an indiscriminate collection of images of the commodity discipline should generally either be improved in accordance with the beneath paragraphs or moved to Wikimedia Commons.

Generally, a gallery or cluster of images should not exist added so long equally in that location is space for images to exist effectively presented next to text. A gallery section may exist appropriate in some Wikipedia articles if a drove of images tin illustrate aspects of a bailiwick that cannot exist easily or adequately described by text or individual images. Just equally nosotros seek to ensure that the prose of an article is clear, precise and engaging, galleries should be similarly well-crafted. Gallery images must collectively add to the reader'southward understanding of the subject without causing unbalance to an article or section within an article while avoiding like or repetitive images, unless a point of contrast or comparison is being made.

Manufactures consisting entirely or primarily of galleries are discouraged, as the Commons is intended for such collections of images. One rule of thumb to consider: if, due to its content, such a gallery would only lend itself to a championship along the lines of "Gallery" or "Images of [insert article championship]", as opposed to a more than descriptive title, the gallery should either be revamped or moved to the Commons. However, a few Wikipedia gallery-but articles, including Gallery of sovereign-state flags, Gallery of passport stamps by country or territory, Gallery of named graphs, and Gallery of curves, have been upheld at AfD. Links to Commons categories (or fifty-fifty Commons galleries) can exist added to the Wikipedia article using the {{Eatables category}}, {{Commons}}, or {{Commons-inline}} templates.

Images should be captioned to explicate their relevance to the article subject and to the theme of the gallery, and the gallery itself should exist accordingly titled (unless its theme is clear from context). Run across Women's suffrage in New Zealand for an instance of an informative and well-crafted gallery. Exist aware different screen size and browsers may bear upon accessibility for some readers even with a well-crafted gallery.

Using animated GIFs to display multiple photos is discouraged. The method is non suitable for printing and also is not convenient (users cannot save private images and accept to look before existence able to view images while other images cycle round).

Off-white-employ images should almost never exist included every bit part of a full general image gallery, because their "fair use" status depends on their proper apply in the context of an commodity (as part of analysis or criticism). See Wikipedia:Fair use for details. An example of an exception might exist a gallery of comparable screenshots from a video game every bit it appears on two different platforms, provided that the differences are relevant (e.g., if the article discusses a controversy in the gaming press about the matter).

Some subjects easily lend themselves to paradigm-heavy articles for which image galleries are suitable, such as plants (e.k., Lily), fashion (e.m., Wedding dress), and the visual arts (e.k., Oil painting). Others do not. There is consensus not to use a gallery of group members as the lead image for articles about large groups of people such as ethnicities.

The default size of a gallery should exist understood every bit simply the size that images are presented at if cipher else is specified, not as the preferred size of the images. Disagreements virtually gallery image sizes should be settled like any other editing dispute, by word on the article talk folio.

Collages and montages

WP:MONTAGE

Collages and montages are single images that illustrate multiple closely related concepts, where overlapping or similar careful placement of component images is necessary to illustrate a bespeak in an encyclopedic mode. (Run across File:Phoebian Explorers two PIA06118.jpg for an example montage.) The components of a collage or montage, as well as the collage or montage itself, must be properly licensed; and (every bit with galleries) fair-utilize components are rarely advisable, as each not-gratuitous image used in the creation of the montage contributes towards consideration of minimal use of non-free images. If a gallery would serve as well as a collage or montage, the gallery should be preferred, as galleries are easier to maintain and accommodate better to user preferences.

Paradigm queuing

WP:IQUEUE

If an article seems to have too many images for its present text, consider moving some of them temporarily to the talk folio, possibly using the <gallery>. However, fair-use images should not exist moved to talk pages, for ii reasons:

fair-use images can just be used in articles (non e.thou. talk pages or user pages), as specified in the image's fair-apply rationale; and
fair-use images become subject to deletion if non really used in an article‍—‌see Wikipedia:Fair apply § Policy and Wikipedia:Criteria for speedy deletion § Images/Media.

Displayed epitome size

WP:THUMBSIZE
WP:IMGSIZE
WP:IMAGESIZE

Images adjacent to text should more often than not carry a caption and employ the "thumb" (thumbnail) choice, which displays the epitome at a width adamant as follows:

A1. For a user non logged in, the width‍—‌before any scaling due to upright (run into B below)‍—‌is currently defaulted to 220px (pixels).
A2. For a logged-in user, the width‍—‌before whatsoever scaling due to upright‍—‌is every bit set in that user's user preferences (and this setting is 220px, unless the user has changed it).
B. If the upright parameter is present, and so the initial width determined by A1 or A2 is multiplied past the upright scaling factor. This allows article editors to suit the user's "base" image-size preference, according to the characteristics of a particular epitome. For example:
- |pollex|upright=1.iv might be used for an image with fine detail, then that information technology volition be rendered "xl% larger than the user generally specified".
- |thumb|upright=0.75 might be used for an image with little detail, which can be adequately displayed "25% smaller than the user generally specified".

Notes:

|thumb (with upright completely absent) multiplies the width by 1.0 (i.e. changes null)
|pollex|upright (with upright present, only no multiplier given) multiplies the width by 0.75 by default
|upright=scaling_factor can be used not only for thumbnails but for certain other images that serve much the same office as thumbnails but do not need frames around them or captions below them. In these cases add |frameless.

See the Wikipedia:Manual of Fashion/Images § Size for further guidance on expanded or reduced image sizes. Except with very skillful reason, do not employ px (e.g. |thumb|300px), which forces a fixed image width measured in pixels, disregarding the user'due south image size preference setting. In about cases upright=scaling_factor should exist used, thereby respecting the user's base preference (which may accept been selected for that user'south particular devices). If px is used, the resulting image should usually exist no more than 500 pixels tall and no more than 400 pixels wide, for comfortable display on the smallest devices "in common utilise" (though this may even so cause viewing difficulties on some unusual displays). To catechumen a px value to scaling_factor , divide it by 220 and round the result as desired. For example, |150px is roughly equivalent to |upright=0.7 (150 / 220 ≃ 0.6818).

Infobox and atomic number 82 images

The lead image in an infobox should not impinge on the default size of the infobox. Therefore, it should exist no wider than upright=i.35 (equivalent to 300px at the default preference choice of "220px"). Images in infoboxes are generated by many dissimilar ways. The most common method used to implement upright is Module:InfoboxImage (meet documentation at that place). Alternatively, infoboxes can utilize standard image syntax in the grade of:

[[File:Westminstpalace.jpg|frameless|eye|upright=scaling_factor]]

Stand-alone pb images (not in an infobox) should also be no wider than upright=one.35.

Deleting images

Consider contacting the user who uploaded the image, telling them of your concerns. Y'all may be able to resolve the event at this point.
Add together a deletion notice to the image description page
- If it is an obvious copyright violation: use the {{db-f9}} or {{db-filecopyvio}} tag
- If it falls nether certain of the other conditions listed under WP:CSD#Files: use {{subst:nsd}} for files that lack a description of its origin, {{subst:nld}} for files that lack licensing information, {{subst:nsdnld}} for files that lack both of these, {{subst:npd}} for files that accept a licensing argument only no evidence that it really applies
- If it is tagged as non-free just plain fails the not-free content policy in certain means: use {{subst:orfud}} if it isn't used in any commodity, {{subst:rfud}} if information technology is replaceable with a free file, {{subst:nrd}} if it lacks a non-costless content rationale, {{subst:dfu}} if the rationale is in some other way obviously insufficient, {{subst:prod}} if there are any other concerns
In all these cases, the file will be deleted by an administrator after a waiting period of a few days or a calendar week.
If the file is tagged as freely licensed but y'all have reasons to suspect this tagging is false: list the file under files for give-and-take, by adding the {{ffd}} template on the file and and then adding a listing to the Wikipedia:Files for discussion pages post-obit the instructions in the tag.
Same if yous think information technology should exist deleted for some other reason: list the file under files for discussion, by adding the {{ffd}} template on the file and so adding a listing to the Wikipedia:Files for discussion pages following the instructions in the tag. This procedure may exist used for images that are depression quality, obsolete, unencyclopedic, likely to remain unused, or whose use under the non-free content rules is disputed.
In each instance, give proper notification to the uploader, following the instructions in the deletion tag.

To really delete an paradigm after following the above procedure, you must be an administrator. To practice and then, go to the paradigm description page and click the (del) or Delete this page links. Administrators can also restore deleted images.

References

^ "[WikiEN-fifty] Non-commercial just and By Permission Only Images to be deleted". wikipedia.org.

harmswhimad.blogspot.com

Source: https://en.wikipedia.org/wiki/Wikipedia:Image_use_policy