Package: pdf2djvu
Version: 0.7.17-4
Severity: normal
Hello,
It seems that recent versions of pdf2djvu have dreadfully lowered
their compression, to the point that now, systematically, the PDF file
is smaller than the DJVU file.
It used to work for me:
-rw-r--r-- 1 fv fv 7243832 Sep 3 18:05 a.djvu
-rw-r--r-- 1 fv fv 5435575 Sep 3 18:04 a.pdf
-rw-r--r-- 1 fv fv 1634030 Sep 3 18:07 c.djvu
-rw-r--r-- 1 fv fv 974299 Nov 7 wood91.djvu
wood91.djvu is a document that was produced losslessly from the
original PDF file I don't have anymore (but the compression was good,
else I wouldn't have kept the DJVU file). a.pdf is the PDF file coming
from ddjvu --format=pdf. a.djvu is the product of running
pdf2djvu --verbose --guess-dpi a.pdf a.djvu
c.djvu is the product of
pdf2djvu --verbose --guess-dpi --monochrome a.pdf c.djvu
This is nowhere as good as it was before. I don't understand what
changed, but that is currently stopping me from using the DJVU format
for storage.
I can't post the above files here as they are copyrighted materials,
but I can send them in private mail if the need arises.
This is not a problem for one file alone, but I've had this problem
for all files "recently".
Best regards,
Vincent
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.14-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages pdf2djvu depends on:
ii djvulibre-bin 3.5.25.4-4
ii libc6 2.19-9
ii libdjvulibre21 3.5.25.4-4
ii libgcc1 1:4.9.1-7
ii libgomp1 4.9.1-7
ii libgraphicsmagick++3 1.3.18-4+b1
ii libpoppler46 0.26.3-1
ii libstdc++6 4.9.1-7
ii libxml2 2.9.1+dfsg1-4
ii libxslt1.1 1.1.28-2
pdf2djvu recommends no packages.
Versions of packages pdf2djvu suggests:
ii poppler-data 0.4.6-5
-- no debconf information
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