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A GIF is an example of a graphics image file that uses a bitmap. [ 2 ] As a noun, the term "bitmap" is very often used to refer to a particular bitmapping application: the pix-map , which refers to a map of pixels , where each pixel may store more than two colors, thus using more than one bit per pixel.
The maximum size of an uploaded file is 100 megabytes. The following file types may be uploaded: png, gif, jpg/jpeg, xcf, pdf, mid, ogg/ogv/oga, svg, djvu and webm. note: pdf and djvu are intended primarily for projects like Wikisource. A screencast that walks through how to upload files to Wikimedia Commons and add them to Wikipedia articles.
In April 2014, 4chan added support for silent WebM videos that are under 3 MB in size and 2 min in length, [76] [77] and in October 2014, Imgur started converting any GIF files uploaded to the site to H.264 video and giving the link to the HTML player the appearance of an actual file with a .gifv extension.
But it does not automatically give you the smallest possible file size. There are some things that need to be done by hand. There is a delusion among many web designers that PNGs are larger than GIFs. This delusion originates from two facts: Many people compare a 24 bit PNG with an 8 bit GIF, which is an invalid comparison.
Animated Portable Network Graphics (APNG) is a file format which extends the Portable Network Graphics (PNG) specification to permit animated images that work similarly to animated GIF files, while supporting 24 or 48-bit images and full alpha transparency not available for GIFs. It also retains backward compatibility with non-animated PNG files.
- Your computer's file manager will open. Find and select the file or image you'd like to attach. Click Open. The file or image will be attached below the body of the email. If you'd like to insert an image directly into the body of an email, check out the steps in the "Insert images into an email" section of this article.
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These categories also serve to aggregate members of several lists or subcategories into a larger, more efficient list (discriminated by classifications). Typically, tracking categories are automatically populated by templates invoked in pages or by the MediaWiki software (see Special:TrackingCategories for an overview of the latter).