Your message dated Tue, 04 Apr 2006 21:13:28 -0400
with message-id <[EMAIL PROTECTED]>
and subject line tiff2pdf -j" (jpeg) alters document color -- not a tiff bug
has caused the attached Bug report to be marked as done.
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(administrator, Debian Bugs database)
--- Begin Message ---
Package: libtiff-tools
Version: 3.8.0-3
Severity: important
Hi,
these two test documents were produced with tiff2pdf, the first one with
zip compression:
"tiff2pdf -z -o test-z.pdf test.tif"
available at: http://zenon.apartia.fr/stuff/test-z.pdf
the second one with jpeg compression:
"tiff2pdf -j -o test-z.pdf test.tif"
available at: http://zenon.apartia.fr/stuff/test-j.pdf
but the document is now pink! Its color has been wrongly altered by the
jpeg compressor.
The source file is available at: http://zenon.apartia.fr/stuff/test.tif
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (499, 'experimental')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-8-debian-trajan
Locale: LANG=en_CA, [EMAIL PROTECTED] (charmap=ISO-8859-15)
Versions of packages libtiff-tools depends on:
ii libc6 2.3.6-3 GNU C Library: Shared libraries an
ii libjpeg62 6b-12 The Independent JPEG Group's JPEG
ii libtiff4 3.8.0-3 Tag Image File Format (TIFF) libra
ii zlib1g 1:1.2.3-11 compression library - runtime
libtiff-tools recommends no packages.
-- no debconf information
--- End Message ---
--- Begin Message ---
I've tried several times to close this bug, but the messages haven't
been getting through to the BTS. I assume it is because of the
attachments. The attachments referenced below are not actually
attached. I'll try to send them to the bug report in some other way
than in this message.
----------------------------------------------------------------------
Louis-David Mitterrand <[EMAIL PROTECTED]> wrote:
> The problem (altered document color) appears only when viewing with
> acroread (on Linux and Windows).
I think you may not have received my previous response since I got a
bounce that my provider had generated too much spam. I'm hoping you
get this response.
I have been able to reproduce this problem with a trivial example that
doesn't actually involve libtiff at all: I can create a 100x100 ppm
file consisting of all white pixels except for one non-white pixel,
convert this to jpeg using cjpeg (from the jpeg library), and manually
insert the resulting jpeg file into a pdf. Then acroread displays a
pink image where xpdf and gpdf display a white image. This therefore
seems to be a bug in acroread and not a bug in libtiff, since the bug
can be reproduced with using libtiff at all.
I'm not sure how to report a bug to Adobe for Acrobat Reader, but I
now have a 1703-byte hand-coded PDF file that illustrates the problem.
We'll see where we can go from here. I'm sorry that there's nothing
specific I can do to resolve this.
In case you're interested in pursuing this further through some other
channel, I've attached the PDF file and the jpeg file I manually
inserted into it to this message. Best of luck.
--
Jay Berkenbilt <[EMAIL PROTECTED]>
--- End Message ---
