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  2. vCard - Wikipedia

    en.wikipedia.org/wiki/VCard

    vCard. vCard, also known as VCF (Virtual Contact File), is a file format standard for electronic business cards. vCards can be attached to e-mail messages, sent via Multimedia Messaging Service (MMS), on the World Wide Web, instant messaging, NFC or through QR code.

  3. If one image's file size is disproportionate to those of others in the same article, you may want to reduce it by selecting a different file format: GIF images with a frame size larger than 100 million pixels (measured as pixel height × pixel width × number of frames in the animation) cannot currently be displayed in thumbnail form in ...

  4. Wikipedia:Preparing images for upload - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Preparing_images...

    There are 4 basic choices for image file formats : SVG for simple diagrams (especially those that need to be scaled). JPEG for photographic images. GIF for animated images. PNG for everything else. While some formats offer multiple compression systems, in general the format and the compression system are tied together.

  5. RGBA color model - Wikipedia

    en.wikipedia.org/wiki/RGBA_color_model

    RGBA stands for red green blue alpha. While it is sometimes described as a color space, it is actually a three-channel RGB color model supplemented with a fourth alpha channel. Alpha indicates how opaque each pixel is and allows an image to be combined over others using alpha compositing, with transparent areas and anti-aliasing of the edges of ...

  6. List of iPhone models - Wikipedia

    en.wikipedia.org/wiki/List_of_iPhone_models

    List of iPhone models. The backs of an iPhone 6, an iPhone 7, an iPhone 8, and an iPhone SE (3rd generation) The iPhone, developed by Apple Inc., is a line of smartphones that combine a mobile phone, digital camera, and personal computer, music player into one device. Introduced by then-CEO Steve Jobs on January 9, 2007, the iPhone ...

  7. Exif - Wikipedia

    en.wikipedia.org/wiki/Exif

    Exif. Exchangeable image file format (officially Exif, according to JEIDA/JEITA/CIPA specifications) [5] is a standard that specifies formats for images, sound, and ancillary tags used by digital cameras (including smartphones ), scanners and other systems handling image and sound files recorded by digital cameras.

  8. Wikipedia:Extended image syntax - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Extended_image...

    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.

  9. List of free and open-source iOS applications - Wikipedia

    en.wikipedia.org/wiki/List_of_free_and_open...

    This is an incomplete list of notable applications (apps) that run on iOS where source code is available under a free software/open-source software license.Note however that much of this software is dual-licensed for non-free distribution via the iOS app store; for example, GPL licenses are not compatible with the app store.