Process exiftool tags using C#

ExiftoolProcess.cs

public static Dictionary<string, string> getExifDataViaTool(string sourceFile, string parameters = "-a")
{
    var result = new Dictionary<string, string>();

    // escaping path command line
    sourceFile = Regex.Replace(sourceFile, @"(\\*)" + "\"", @"$1\$0");
    sourceFile = Regex.Replace(sourceFile, @"^(.*\s.*?)(\\*)$", "\"$1$2$2\"");

    var argumentsString = parameters + " " + sourceFile;

    System.Diagnostics.Process process = new System.Diagnostics.Process();
    System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
    startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    startInfo.FileName = @"exiftool.exe";
    startInfo.Arguments = argumentsString;
    startInfo.RedirectStandardOutput = true;
    startInfo.RedirectStandardError = true;
    startInfo.UseShellExecute = false;
    startInfo.CreateNoWindow = true;
    process.StartInfo = startInfo;
    process.Start();
    process.WaitForExit(5000);
    string output = process.StandardOutput.ReadToEnd();
    string err = process.StandardError.ReadToEnd();

    if (err.ToLower().Contains("error"))
    {
        throw new MetadataException("Exiftool threw an exception: " + output + "\n" + err);
    }

    string[] lines = output.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);


    foreach(var line in lines)
    {
        var pair = line.Split(new char[] { ':' }, 2);
        if(pair.Length >= 2)
        {
            var key = pair[0].TrimEnd();
            var value = pair[1].TrimStart();
            result[key] = value;
        }
    }

    return result;
    
}

Here's how to use it:

var data = getExifDataViaTool(@"E:\path\to\file.png"); // returns a dictionary<string, string>
var fileSize = data["File Size"];
var fileType = data["File Type"];

Cheers.