Converting PDF to images using ImageMagick.NET - how to set the DPI
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by Avi Pinto
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Published on 2010-05-26T20:33:02Z
Indexed on
2010/05/29
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Hi, I'm trying to convert pdf files to images. ImageMagick is a great tool, and using the command line tool gets me desired result.
but i need to do this in my code, So added a reference to http://imagemagick.codeplex.com/ And the following code sample renders each page of the pdf as an image:
MagickNet.InitializeMagick();
using (ImageList im = new ImageList())
{
im.ReadImages(@"E:\Test\" + fileName + ".pdf");
int count = 0;
foreach (Image image in im)
{
image.Quality = 100;
image.CompressType = mageMagickNET.CompressionType.LosslessJPEGCompression;
image.Write(@"E:\Test\" + fileName + "-" + count.ToString() + ".jpg");
++count;
}
}
The problem: IT LOOKS LIKE CRAP the rendered image is hardly readable. the problem i realized is it uses the default 72 DPI of ImageMagick. and i can't find a way to set it(96dpi or 120dpi gives good results) via the .Net wrapper.
Am I missing something , or there is really no way to set it via this wrapper?
Thanks
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