Package: imagemagick
Version: 8:6.7.7.10-7
Severity: normal
File: /usr/bin/convert
when using `convert` to create a pdf file from a pixel graphic, and the
resulting pdf is physically larger than 90pts, `convert` fails
silently by outputting an empty letter-sized pdf.
admittedly, creating 300m large pdf files is usually not intended, but
can easily happen when taking high-res images (think stitched panoramas,
18000x3000px can be realistic there) and converting them to pdf with the
default resolution (`convert DSC_1234-DSC1249.jpg
DSC_1234-DSC1249.pdf`). for an easier to reproduce setup, try this:
$ convert -size 100x100 xc:white small.png
$ convert small.png -density 0.007 small.pdf
$ pdfinfo small.pdf
[...]
Page size: 612 x 792 pts (letter)
[...]
at resolution 0.008dpi, instead it gives
Page size: 90 x 90 pts
which is expected.
if this is a limitation of the output format, please have convert exit
with an error (and ideally a message that suggests using a higher
`-density`).
as a workaround, mechanisms that deal with converting images
automatically can set high pixel densities (but must not go too hight,
because:
$ convert small.png -density 8000 small.pdf
$ pdfinfo small.pdf
[...]
Page size: 612 x 792 pts (letter)
[...]
)
-- 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 3.12-trunk-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages imagemagick depends on:
ii hicolor-icon-theme 0.13-1
ii libbz2-1.0 1.0.6-5
ii libc6 2.17-97
ii libfontconfig1 2.11.0-2
ii libfreetype62.5.2-1
ii libglib2.0-02.38.0-1
ii libgomp14.8.2-14
ii libice6 2:1.0.8-2
ii libjpeg88d-2
ii liblcms2-2 2.2+git20110628-2.3+b1
ii liblqr-1-0 0.4.1-2
ii libltdl72.4.2-1.6
ii liblzma55.1.1alpha+20120614-2
ii libmagickcore5 8:6.7.7.10-7
ii libmagickwand5 8:6.7.7.10-7
ii libsm6 2:1.2.1-2
ii libtiff54.0.3-7
ii libx11-62:1.6.2-1
ii libxext62:1.3.2-1
ii libxt6 1:1.1.4-1
ii zlib1g 1:1.2.8.dfsg-1
Versions of packages imagemagick recommends:
ii ghostscript 9.05~dfsg-8+b1
ii libmagickcore5-extra 8:6.7.7.10-7
ii netpbm2:10.0-15+b2
ii ufraw-batch 0.19.2-2
Versions of packages imagemagick suggests:
pn autotracenone
ii cups-bsd [lpr] 1.7.1-2
ii curl 7.34.0-1
pn enscript none
ii ffmpeg 6:0.8.8-1
ii gimp 2.8.6-1
ii gnuplot 4.6.4-1
pn gradsnone
ii groff-base 1.22.2-4
pn hp2xxnone
pn html2ps none
pn imagemagick-doc none
pn libwmf-bin none
ii mplayer 2:1.0~rc4.dfsg1+svn34540-1+b2
pn povray none
pn radiance none
ii sane-utils 1.0.24-1.1+b1
ii texlive-binaries [texlive-base-bin] 2013.20130729.30972-2+b2
ii transfig 1:3.2.5.e-1
ii xdg-utils1.1.0~rc1+git20111210-7
-- no debconf information
--
To use raw power is to make yourself infinitely vulnerable to greater powers.
-- Bene Gesserit axiom
signature.asc
Description: Digital signature
