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Thread: Nautilus EXIF for PNG Files

  1. #1
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    Nautilus EXIF for PNG Files

    I was using Shotwell to change the EXIF date info for some pictures today and noticed something strange. Nautilus helpfully shows the EXIF data in one tab of the Properties dialog. However, the date info shows up for JPG files and not for PNG files. Gthumb shows the EXIF data is written correctly for both PNG and JPG files.
    Is there some reason that Nautilus isn't reading this info from PNG files?
    If I'm not being clear enough or giving you enough information, just ask

    "But woe to him who is alone when he falls, for he has no one to help him up."

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  2. #2
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    Re: Nautilus EXIF for PNG Files

    EXIF for PNG?

    https://en.wikipedia.org/wiki/Exchan...ge_file_format says that EXIF is not supported in PNG.

  3. #3
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    Re: Nautilus EXIF for PNG Files

    Quote Originally Posted by jorok_tupur View Post
    EXIF for PNG?

    https://en.wikipedia.org/wiki/Exchan...ge_file_format says that EXIF is not supported in PNG.
    http://stackoverflow.com/questions/9...-data-like-jpg

    this post on stack overflow says that though png does NOT support exif it supports "chunks" of meta data. This may account for the way some of the data is preserved. But yes, EXIF data proper is not supported in png.

  4. #4
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    Re: Nautilus EXIF for PNG Files

    Thanks for the info about that. I guess the PNG files just have those "chunks" for the metadata.
    So does Nautilus only read the EXIF data for the Properties window?
    If I'm not being clear enough or giving you enough information, just ask

    "But woe to him who is alone when he falls, for he has no one to help him up."

    Smooth scrolling for GTK!

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