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1994.12.16 07:41 "Re: TIFF File Naming Conventions/Standards?", by Karsten Spang
In message <199412151424.JAA24464@dw3f.ess.harris.com>,
"Bill Davis" <wdavis@dw3f.ess.harris.com> writes:
>The problem with multiple images for TIFF is that the format
>was designed for a single image. The name says it all: the I
>stands for Image instead of document, image group, etc.
>
>When there are multiple images in a single file, the standard
>is clear that they are variations of a single image. Only
>the first one must be read by a compliant TIFF reader.
That really depends on the subfile type of the IFD. The spec:
NewSubfileType (254)
...
Bit 1 is 1 if the image is a single page of a multi-page image (See the
PageNumber field description.) ...
...
PageNumber (297)
...
This field is used to specify page numbers of a multiple page (e.g.
facsimile) document...
That is all you need to put multiple images in a single TIFF file. Any reader
that handles multiple pages ought to be able to read such a TIFF file.
It is quite another topic how you update a single page of such a document...
Karsten
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