Image cut in half when converting PDF to PNG with -resize

[avheatherim]

I am using image magick with C# to convert a pdf with an upload tool I built. Works amazing for all pdfs until today.

A user uploaded a pdf and it converts & resizes, but cuts it in half!

Has anyone else heard of this?

Here is my code:

Code: Select all

             //restrict image size to 200 pixels
                string newSize = "200x200 ";
                string opt = " -resize " + newSize;

                // setup a process to run the ImageMagick converter
                pdfToPngProcess.StartInfo.UseShellExecute = false;
                pdfToPngProcess.StartInfo.CreateNoWindow = true;
                pdfToPngProcess.StartInfo.RedirectStandardError = true;
                pdfToPngProcess.StartInfo.RedirectStandardOutput = true;
                pdfToPngProcess.StartInfo.FileName = AppDomain.CurrentDomain.BaseDirectory + @"\Scripts\ImageMagick\convert.exe";

                // quote filenames so we don't have to worry about spaces in file paths
                pdfToPngProcess.StartInfo.Arguments = string.Format(@"""{0}"" {1} ""{2}""", sourcePDFPath, opt, destinationFullPath);

                //// attempt to convert the images and wait until it completes
                pdfToPngProcess.Start();
                pdfToPngProcess.WaitForExit();

[glennrp]

Which half of the image are you seeing (top, bottom, left, right) and what
are its dimensions? What version of IM and libpng are you using?