diff --git a/src/net/NetPDF/InternalConst.cs b/src/net/NetPDF/InternalConst.cs
index 3386b839..cded3f04 100644
--- a/src/net/NetPDF/InternalConst.cs
+++ b/src/net/NetPDF/InternalConst.cs
@@ -28,6 +28,7 @@ class CLIParam
         public const string CommonLoggingConfiguration = "CommonLoggingConfiguration";
         public const string LogPath = "LogPath";
         public const string FontCachePath = "FontCachePath";
+        public const string UsePureJavaCMYKConversion = "UsePureJavaCMYKConversion";
     }
 
     /// <summary>
diff --git a/src/net/NetPDF/NetPDFCore.cs b/src/net/NetPDF/NetPDFCore.cs
index 5b17bd35..365a86bc 100644
--- a/src/net/NetPDF/NetPDFCore.cs
+++ b/src/net/NetPDF/NetPDFCore.cs
@@ -63,6 +63,11 @@ public override IEnumerable<IArgumentMetadata> CommandLineArguments
                         Name = CLIParam.FontCachePath,
                         Help = "The path where font cache will be stored.",
                     },
+                    new ArgumentMetadata<object>()
+                    {
+                        Name = CLIParam.UsePureJavaCMYKConversion,
+                        Help = "Add on command line to enable pure Java CMYK conversion.",
+                    },
                 });
                 return lst;
             }
@@ -106,6 +111,7 @@ protected override string[] ProcessCommandLine()
             }
             _logPath = ParsedArgs.Get<string>(CLIParam.LogPath);
             _fontCachePath = ParsedArgs.Get<string>(CLIParam.FontCachePath);
+            _usePureJavaCMYKConversion = ParsedArgs.Exist(CLIParam.UsePureJavaCMYKConversion);
             return result;
         }
         /// <summary>
@@ -155,6 +161,11 @@ protected virtual void PrepareMainClassToRun(string className)
         /// </summary>
         public static string ApplicationFontCachePath { get; set; }
 
+        /// <summary>
+        /// <see langword="true"/> to enable pure Java CMYK conversion
+        /// </summary>
+        public static bool? ApplicationUsePureJavaCMYKConversion { get; set; }
+
         /// <summary>
         /// value can be overridden in subclasses
         /// </summary>
@@ -182,6 +193,12 @@ protected virtual void PrepareMainClassToRun(string className)
         /// </summary>
         public virtual string FontCachePath { get { return ApplicationFontCachePath ?? _fontCachePath; } }
 
+        bool _usePureJavaCMYKConversion;
+        /// <summary>
+        /// The log folder
+        /// </summary>
+        public virtual bool UsePureJavaCMYKConversion { get { return !ApplicationUsePureJavaCMYKConversion.HasValue ? _usePureJavaCMYKConversion : ApplicationUsePureJavaCMYKConversion.Value; } }
+
         /// <summary>
         /// The log4j configuration
         /// </summary>
@@ -224,6 +241,11 @@ protected override IDictionary<string, string> Options
                     options.Add("pdfbox.fontcache", FontCachePath);
                 }
 
+                if (UsePureJavaCMYKConversion)
+                {
+                    options.Add("org.apache.pdfbox.rendering.UsePureJavaCMYKConversion", "true");
+                }
+
                 return options;
             }
         }