This would a problem for Adobe. Did they ever make their registry public?  I suspect not.

The work that Joris did to collect this publicly-available tag information and summarize it in a useful way is quite valuable. Unfortunately, other information sites (including run by the US Government) simply linked to his site.

Bob

On 6/19/25 16:10, Kemp Watson wrote:
This is nowhere near the list of TIFF tags. Adobe maintained a registry for years, and it simply went poof! Leonard Rosenthol would likely be the person here to follow that up with - I tried and never heard back from Adobe.

I know tags were up to at least TIFFtag 51159 and 51160, I registered them for my ZIF format around 2012.
We have lost literally thousands of registered tags, huge damage.

W. Kemp Watson, Managing Director
Objective Pathology Services Limited
Toronto, Canada


On Thu, 19 Jun 2025 at 17:04, Even Rouault via Tiff <[email protected]> wrote:

    Bob,

    things seem to work for me, e.g. with
    
https://web.archive.org/web/20240329145250/https://www.awaresystems.be/imaging/tiff/tifftags/baseline.html

    Even

    Le 19/06/2025 à 23:00, Bob Friesenhahn via Tiff a écrit :
    > Since http://www.awaresystems.be/imaging/tiff is now gone, the
    > wonderful TIFF tag index that Joris maintained is also gone. 
    This is
    > a crushing blow!  I assumed/hoped that web.archive.org
    <http://web.archive.org> would have
    > captured all of the content but it seems that the site blocked
    > indexing since the Wayback Machine only returns this for anything I
    > access via
    >
    "https://web.archive.org/web/*/http://www.awaresystems.be/imaging/tiff/*":
    >
    >
    >      Forbidden
    >
    >    You don't have permission to access this resource.
    >
    > I am able to access URLs for the mailing list archive though.
    >
    > It seems that the relevant URL was
    > "http://www.awaresystems.be/imaging/tiff/tifftags/";.
    >
    > Does anyone have this content, or know how it can still be accessed?
    >
    > Thanks,
    >
    > Bob
    >
    >
    > _______________________________________________
    > Tiff mailing list
    > [email protected]
    > https://lists.osgeo.org/mailman/listinfo/tiff

-- http://www.spatialys.com
    My software is free, but my time generally not.

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