2007.07.05 16:32 "RE: [Tiff] BigTIFF extension", by Kemp Watson

RE: [Tiff] BigTIFF extensionHi Larry:

I'm sure those sort of interoperability concerns will exist in a number of
industries; as I understand it, BigTIFF/TIFF 4.0 will generate
completely-conformant TIFF 6.0 files when asked to (obviously, file size is
the limiting factor). Further restricting file features to a subset would be
entirely up to your industry to specify.

Hope this helps,

Kemp Watson

-----Original Message-----

  From: Larry Krummel [mailto:larry@krummel.com]
  Sent: July 5, 2007 12:17 PM
  To: Kemp Watson; Stephen Carlsen

  Kemp, Stephen

I am a member of the X9 ASC standards committee for the Financial Industry. The extension for the file is informative. However if the contents do not conform to TIFF 6.0, especially the first 8 bytes, the file would immediately be rejected by any decent TIFF reader as it should be.

Because there are so many "TIFF Readers" and "TIFF Writers" that do not really read or write TIFF 6.0 versions, the X9 AB committee is creating a minimal subset of TIFF 6.0 that will be required for use by the financial industry. Any file that does not conform can, and will, be rejected. In the US this means that checks transmitted as images that do not conform will be returned unpaid.

It is obvious that BigTIFF and the financial industry have different agendas. My concern is that the TIFF library created for BigTIFF will be used by an unsuspecting programmer as a means to generate real TIFF. My request would be that if you call the library TIFF, it will at least have a means to generate real TIFF. It will save some unsuspecting programmer a lot of grief.

  Larry

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