Pinned What do those file extensions mean?

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  • What do those file extensions mean?

    Found and posted by Merlyn

    This is copied from a tutorial on how to save a picture and what it will do when you save it as that.

    Alpha values = transparency, opacity.

    File Types
    Paint.NET (*.pdn)
    Preserves layers, layer names and information, alpha values. Can only be used in Paint.NET, no image hosting services or image editors/viewers can support this file type, use only for later editing of the file.

    Bitmap (BMP) (*.bmp)
    Does not retain layers or alpha values. If you have the chequerboard pattern on your image it will appear white when saved in this format. Photobucket.com and Imageshack.us both accept this format.
    ~This is an un-compressed format and has largely been superseded by the PNG format.~

    GIF (*.gif)
    Does not retain layers but does save alpha values. If you see the chequerboard pattern on your image it will be transparent when viewed elsewhere, although it is either transparent or not, there is no wide range of alpha values with this type. Lossless format and good for websites and animations. Photobucket.com and Imageshack.us both accept this format.

    JPEG (*.jpg; *.jpeg; *.jpe; *.jfif)
    Does not retain layers or alpha values and is a lossy format meaning it will loose quality when saved. If you have the chequerboard pattern on your image it will appear white when saved in this format. Good for websites. Photobucket.com and Imageshack.us both accept this format.

    PNG (*.png)
    Does not retain layers but does alpha. If you see the chequerboard pattern on your image it will be transparent when viewed elsewhere. Wide range of alpha values meaning it can have anything between an alpha of 0 (fully transparent) up to 255 (fully opaque). Lossless format. Photobucket.com and Imageshack.us both accept this format.

    TIFF (*.tif; *.tiff)
    Does not retain layers but does alpha. If you see the chequerboard pattern on your image it will be transparent when viewed elsewhere. Wide range of alpha values meaning it can have anything between an alpha of 0 (fully transparent) up to 255 (fully opaque). Lossless format. Only Imageshack.us accepts this format.

    TGA (*.tga)
    Used for texture mapping in such 3D editing software as Blender and POV-Ray and also gaming screenshots of this file type are common.
    Does not retain layers but does alpha. If you see the chequerboard pattern on your image it will be transparent when viewed elsewhere. Wide range of alpha values meaning it can have anything between an alpha of 0 (fully transparent) up to 255 (fully opaque). Lossless format. Neither Photobucket nor Imageshack accept this file format.

    DirectDraw Surface (DDS) (*.dds)
    Used for storing textures and cubic environment maps, both compressed and uncompressed. This makes the format useful for storing DXTn compressed data used in GPUs and consoles like the Playstation 3 and Xbox 360.
    Does not support layers but does alpha. If you see the chequerboard pattern on your image it will be transparent when viewed elsewhere. Wide range of alpha values meaning it can have anything between an alpha of 0 (fully transparent) up to 255 (fully opaque). Lossless format. Neither Photobucket nor Imageshack accept this file format.

    HD Photo (*.wdp; *.hdp)
    Obtained from this link: paintdotnet.12.forumer.com/viewtopic.php?t=4124
    Does not retain layers but does alpha. If you see the chequerboard pattern on your image it will be transparent when viewed elsewhere. Wide range of alpha values meaning it can have anything between an alpha of 0 (fully transparent) up to 255 (fully opaque). Lossless format at quality of 100 and lossy at anything less than 100. Neither Photobucket nor Imageshack accept this file format.

    Icons (*.ico)
    Cursors (*.cur)
    Animated Cursors (*.ani)
    Obtained from this link: paintdotnet.12.forumer.com/viewtopic.php?t=1152
    Icons format supports layers and alpha. Help included when saving.
    Cursors do not support layers but does alpha.
    Animated Cursors does support layers and alpha.
    If you see the chequerboard pattern on your image it will be transparent when viewed elsewhere. Wide range of alpha values meaning it can have anything between an alpha of 0 (fully transparent) up to 255 (fully opaque). Lossless format. Neither Photobucket nor Imageshack accept this file format.

    Photoshop (*.psd)
    Obtained from this link: paintdotnet.12.forumer.com/viewtopic.php?t=1238
    Preserves layers, layer names and information, alpha values. Can be used in Paint.NET, Photoshop and other programs which support PSD files. Neither Photobucket or Imageshack accept this file format but some hosting services do. Great for transferring layered from Paint.NET to Photoshop and vice versa.