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  2. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    MPEG-1 Layer 3 file without an ID3 tag or with an ID3v1 tag (which is appended at the end of the file) 49 44 33: ID3: 0 mp3 MP3 file with an ID3v2 container 42 4D: BM: 0 bmp dib BMP file, a bitmap format used mostly in the Windows world 43 44 30 30 31: CD001: 0x8001 0x8801 0x9001 iso ISO9660 CD/DVD image file [40] 43 44 30 30 31: CD001: 0x5EAC9 ...

  3. JPEG File Interchange Format - Wikipedia

    en.wikipedia.org/wiki/JPEG_File_Interchange_Format

    The JPEG File Interchange Format (JFIF) is an image file format standard published as ITU-T Recommendation T.871 and ISO/IEC 10918-5. It defines supplementary specifications for the container format that contains the image data encoded with the JPEG algorithm.

  4. JPEG - Wikipedia

    en.wikipedia.org/wiki/JPEG

    The most common filename extensions for files employing JPEG compression are .jpg and .jpeg, though .jpe, .jfif and .jif are also used. [47] It is also possible for JPEG data to be embedded in other file types – TIFF encoded files often embed a JPEG image as a thumbnail of the main image; and MP3 files can contain a JPEG of cover art in the ...

  5. File format - Wikipedia

    en.wikipedia.org/wiki/File_format

    As well as identifying the file format, file headers may contain metadata about the file and its contents. For example, most image files store information about image format, size, resolution and color space , and optionally authoring information such as who made the image, when and where it was made, what camera model and photographic settings ...

  6. Add images and attachments to your emails in AOL Desktop Gold

    help.aol.com/articles/create-add-delete-or-set-a...

    Send up to 15 Megabytes of attached files in one email. 1. Launch Desktop Gold. 2. Sign on with your username and password. 3. Click the Write icon at the top of the window. 4. Click Attach File to select a file or drag and drop a file into the email compose area.

  7. Image file format - Wikipedia

    en.wikipedia.org/wiki/Image_file_format

    An image file format is a file format for a digital image. There are many formats that can be used, such as JPEG, PNG, and GIF. Most formats up until 2022 were for storing 2D images, not 3D ones. The data stored in an image file format may be compressed or uncompressed.

  8. Header (computing) - Wikipedia

    en.wikipedia.org/wiki/Header_(computing)

    In graphics file formats, the header might give information about an image's size, resolution, number of colors, and the like. In archive file formats , the file header might serve as a fingerprint or signature to identify the specific file format and corresponding software utility.

  9. Exif - Wikipedia

    en.wikipedia.org/wiki/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.