<acronym>TIFF</acronym> is a loose collection of formats, now largely
superceded by <acronym>PNG</acronym> except in applications where backward
compatibility or special compression is required. The <acronym>TIFF</acronym>
file format is described in the
<a href="http://partners.adobe.com/asn/developer/pdfs/tn/TIFF6.pdf" class="offsite">TIFF 6.0 Specification</a>
published by Adobe Systems Incorporated.</p>

<p>
There are two unrelated sets of TIFF drivers.  There are five color TIFF
drivers that produce un