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Date: Wed, 19 Apr 2006 12:26:07 -0700
From: Glenn Widener <glennw@swiftview.com>
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<blockquote cite="mid200604191602.k3JG2rNr014734@duke.maptools.org"
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  <pre wrap="">

Message: 2

Date: Wed, 19 Apr 2006 07:40:48 -0400
From: Leonard Rosenthol <a class="moz-txt-link-rfc2396E" href="mailto:leonardr@pdfsages.com">&lt;leonardr@pdfsages.com&gt;</a>
Subject: Re: [Tiff] TIFF + Group4 will last 10 years?
To: Rui Castro <a class="moz-txt-link-rfc2396E" href="mailto:rcastro@iantt.pt">&lt;rcastro@iantt.pt&gt;</a>, <a class="moz-txt-link-abbreviated" href="mailto:tiff@lists.maptools.org">tiff@lists.maptools.org</a>
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At 06:45 AM 4/19/2006, Rui Castro wrote:
  </pre>
  <blockquote type="cite">
    <pre wrap="">I'm working in a digital preservation project for the Portuguese
National Archive. Currently we need to migrate a bunch of images created
in a previous digitization project to a new physical support. The images
have 2 colors (Black and White) are in TIFF format with Group4
compression. These images are going to be stored in a safe way until
2013, preferably in TIFF format (with or without compression).
    </pre>
  </blockquote>
  <pre wrap=""><!---->
         Why not use PDF/A then?  It's an ISO standard for long term 
archival storage of electronic documents.   See 
<a class="moz-txt-link-rfc2396E" href="http://www.aiim.org/article-pr.asp?ID=30413">&lt;http://www.aiim.org/article-pr.asp?ID=30413&gt;</a> for details.
  </pre>
</blockquote>
<br>
I'd rather ask, why use PDF/A?&nbsp; No reason. It's at least an order of
magnitude more complex than TIFF, to no benefit, particularly for
mononcrome images (unless you need to include searchable text or embed
arbitrary metadata in your image file).&nbsp; PDF/A is new, relatively
unproven, and exists to solve problems with PDF as an archive format.<br>
<br>
TIFF will be around FOREVER, and since reading it is trivial, will
always be readable on any machine to be invented in the future, as long
as it can read the bits in the file.&nbsp; <br>
<br>
I want to start a discussion on this list around the question: <br>
<br>
If you were to invent an extension to TIFF called "TIFF/A", to add
functionality that PDF/A has and TIFF lacks, what would you add and
how?&nbsp; <br>
<br>
I'm interested in embedded text, general metadata, JBIG2, maybe big
files.<br>
<pre class="moz-signature" cols="75">-- 
Glenn Widener
SwiftView Tools Product Manager
SwiftView Inc. - quality PCL/TIFF portable document tools and services
<a class="moz-txt-link-abbreviated" href="http://www.swiftview.com">www.swiftview.com</a>
Work: (971)223-2621
Cell: (503)351-1178

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