Re: DRAFT: eXIf 2017-03-02

John Bowler <[email protected]> Thu, 2 Mar 2017 20:15:02 -0800
Newsgroups gmane.comp.graphics.png.general
Message-ID <CAP7U399XLxaH+ftU0UZ-TYiR8jWufJLfZB=GdNsbHmc757u6Yw@mail.gmail.com>
On Thu, Mar 2, 2017 at 1:43 PM, Glenn Randers-Pehrson <[email protected]> wrote:
>> It contains a TIFF header plus a 0th IFD (Image File Directory)
>> and/or a 1st IFD as defined in the Exif specification; the 0th IFD
>> contains pointers to an Exif sub-IFD and/or a GPS sub-IFD. The
>> optional 1st IFD contains a thumbnail image.

Why must it contain either IFD[0] or IFD[1]?

-- 
John Bowler <[email protected]>
+1 (541) 450-9885
PO BOX 3151
KERBY OR 97531-3151
USA

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