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Thread: PNG save transparent color in 8bit without removing it

  1. #1
    IV Newbie
    Join Date
    Jan 2019
    IrfanView 4.51
    64-bit Win 10

    Default PNG save transparent color in 8bit without removing it

    Hello. I found out how to pick the color I want when selecting a PNG reducing it to 8bit by unchecking 'use main window for transparency' which takes the black and turns all black transparent which is wrong. The problem is that if I select the color to use for transparency it removes it after saving. How can I keep the color background ? I use sprites and I need it to remain because saving PNG with removing the actual background color then the color is missing from the palette as well..

  2. #2
    Professional User Mij's Avatar
    Join Date
    Mar 2007
    Camberley, Surrey, UK
    IrfanView 4.51
    32-bit Win 10
    CPU Cores


    I think you will find that you can't.
    The last time I tried to explain how this feature does work was post 28 of this thread. It may help you (but probably won't).

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