Ugly jpegs from PDF

[magick]

Use MagickSetResolution to set the x & y resolution to 300 before you read. After the image read, use MagickResizeImage() to reduce the image size. This will give you decent looking renderings of your PDF images.

[magick]

Try

• MagickTransformImage(wand,NULL,"400x400");

to resize the image to a maximum of 400 pixels while still retaining the aspect ratio of the image.

[magick]

Sure, you can use Ghostscript to convert PDF to JPEG.

[magick]

Ghostscript is a separate package from ImageMagick. Go to the Ghostscript mailing lists and discussion forums for help.