New Post: Converting PDFs to Thumbnails creates Blur

Hey,

I am using ImageMagick.Net to create thumbnails from PDFs of blueprints (fine lines, black on white). If I am using "classic" ImageMagick from the console (convert original.pdf -resize 500x500 thumb.png) I get a really nice thumbnail.

If I use Magick.net with the example code from the documentation

            MagickGeometry size = new MagickGeometry(500, 500);

            MagickReadSettings settings = new MagickReadSettings();
            // Settings the density to 300 dpi will create an image with a better quality
            settings.Density = new PointD(300, 300);

            using (MagickImageCollection images = new MagickImageCollection())
            {
                // Add all the pages of the pdf file to the collection
                images.Read(original, settings);

                int page = 1;
                foreach (MagickImage image in images)
                {
                    // Writing to png
                    //image.Format = MagickFormat.Png00;
                    image.Resize(size);
                    image.Write(destination + page + ".png");
                    page++;
                }

I get a very blurry thumbnail. I tried adjusting various settings but the result stays the same.

Does anyone have an idea, what might be the problem?