I'd like to enlarge a PDF and save it as a JPG, and I found a similar
post (excerpt below) regarding EPS. But when I try a similar approach in
Perl, ImageMagick complains:
use Image::Magick;
my $p = new Image::Magick;
$p->Set( 'density' => "300x300" );
$p->Read( "doc.pdf" );
$p->[0]->write("doc.jpg");
Results in the following:
ERROR: /undefined in --get--
Operand stack:
--dict:6/6(L)-- F2 10 --dict:5/8(L)--
--dict:5/8(L)-- --dict:5/8(L)-- Subtype
Execution stack:
%interp_exit .runexec2 --nostringval-- --nostringval--
--nostringval-- 2 %stopped_push --nostringval-- --nostringval--
--nostringval-- false 1 %stopped_push 1 3 %oparray_pop 1
3 %oparray_pop 1 3 %oparray_pop --nostringval--
--nostringval-- 3 1 2 --nostringval-- %for_pos_int_continue
--nostringval-- --nostringval-- --nostringval-- --nostringval--
%array_continue --nostringval-- false 1 %stopped_push
--nostringval-- %loop_continue --nostringval-- --nostringval--
--nostringval--
Dictionary stack:
--dict:1142/3371(ro)(G)-- --dict:0/20(G)--
--dict:107/200(L)-- --dict:107/200(L)-- --dict:104/127(ro)(G)--
--dict:241/347(ro)(G)-- --dict:20/24(L)-- --dict:4/6(L)--
--dict:24/31(L)--
Current allocation mode is local
Last OS error: 2
ESP Ghostscript 8.15.3: Unrecoverable error, exit code 1
Can't call method "write" on an undefined value at ./split-image
line 21.
However, if I run the exact same script on the same document and set the
density to 72x72 or anything less, there are no complaints, but the
document has not been enlarged. If I open the document in Adobe Reader,
I can zoom to 3200% with great clarity of fonts, but if I use
PerlMagick's Resize function, the image is first rasterized, then
resized, and the resulting image loses the sharp edges on the fonts.
Does anyone know how to accomplish this?
Ryan
>>>>>>>>> PREVIOUS POST >>>>>>>>>>>>>
[magick-users] Re: Enlarge EPS to JPG
Oliver Hirschi ohirschi at pm-medici.ch
Wed Jun 23 23:28:30 PDT 2004
I have solved the problem...
The thing is, that I have to set the density befor reading the EPS:
-------------------------------
Image image;
image.density("300x300");
image.read(m_sSourceFile)
image.transform(m_sGeometry);
image.quality(m_iQuality);
image.write(m_sDestFile);
-------------------------------
...
Thanks & Regards, Oli
"Oliver Hirschi" <ohirschi at pm-medici.ch> schrieb im Newsbeitrag
> Hi guys,
>
> I would like to enlarge an EPS to JPG using ImageMagick 5.5.7, but the
> result-jpg is not really good quality.
...
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