diff -r b329573c76d7 -r 8e9983260624 java/copy-image-resizer/src/cz/frantovo/copyImageResizer/cli/CLIParser.java
--- a/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/cli/CLIParser.java	Mon Nov 17 01:17:02 2014 +0100
+++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/cli/CLIParser.java	Mon Nov 17 17:02:48 2014 +0100
@@ -18,6 +18,7 @@
 package cz.frantovo.copyImageResizer.cli;
 
 import cz.frantovo.copyImageResizer.RecursiveOptions;
+import cz.frantovo.copyImageResizer.SizeSpecification;
 import java.io.File;
 import java.util.Arrays;
 import java.util.Collection;
@@ -52,11 +53,21 @@
 		return options;
 	}
 
-	private static String fetchNext(String[] args, int index) throws CLIParserException {
+	/**
+	 *
+	 * @param args
+	 * @param index
+	 * @param option name of the option for error messages | if null, the previous argument is used
+	 * as option name
+	 * @return
+	 * @throws CLIParserException
+	 */
+	private static String fetchNext(String[] args, int index, String option) throws CLIParserException {
 		if (index < args.length) {
 			return args[index];
 		} else {
-			throw new CLIParserException("Expecting value for option: " + args[index - 1]);
+			option = option == null ? args[index - 1] : option;
+			throw new CLIParserException("Expecting value for option: " + option);
 		}
 	}
 
@@ -66,7 +77,7 @@
 					@Override
 					public int parse(String[] args, int index, RecursiveOptions options) throws CLIParserException {
 						int originalIndex = index;
-						String name = fetchNext(args, ++index);
+						String name = fetchNext(args, ++index, args[originalIndex]);
 						options.setInput(new File(name));
 						return index - originalIndex;
 					}
@@ -75,7 +86,7 @@
 					@Override
 					public int parse(String[] args, int index, RecursiveOptions options) throws CLIParserException {
 						int originalIndex = index;
-						String name = fetchNext(args, ++index);
+						String name = fetchNext(args, ++index, args[originalIndex]);
 						options.setOutput(new File(name));
 						return index - originalIndex;
 					}
@@ -84,10 +95,11 @@
 					@Override
 					public int parse(String[] args, int index, RecursiveOptions options) throws CLIParserException {
 						int originalIndex = index;
-						int width = parseInt(fetchNext(args, ++index));
-						int height = parseInt(fetchNext(args, ++index));
+						int width = parseInt(fetchNext(args, ++index, args[originalIndex]));
+						int height = parseInt(fetchNext(args, ++index, args[originalIndex]));
+						boolean resizeSmaller = parseBoolean(fetchNext(args, ++index, args[originalIndex]));
 						String directory = width + "x" + height;
-						options.addSize(new RecursiveOptions.SizeSpecification(width, height, directory));
+						options.addSize(new SizeSpecification(width, height, directory, resizeSmaller));
 						return index - originalIndex;
 					}
 				},
@@ -95,10 +107,11 @@
 					@Override
 					public int parse(String[] args, int index, RecursiveOptions options) throws CLIParserException {
 						int originalIndex = index;
-						int width = parseInt(fetchNext(args, ++index));
-						int height = parseInt(fetchNext(args, ++index));
-						String directory = fetchNext(args, ++index);
-						options.addSize(new RecursiveOptions.SizeSpecification(width, height, directory));
+						int width = parseInt(fetchNext(args, ++index, args[originalIndex]));
+						int height = parseInt(fetchNext(args, ++index, args[originalIndex]));
+						boolean resizeSmaller = parseBoolean(fetchNext(args, ++index, args[originalIndex]));
+						String directory = fetchNext(args, ++index, args[originalIndex]);
+						options.addSize(new SizeSpecification(width, height, directory, resizeSmaller));
 						return index - originalIndex;
 					}
 				};
@@ -125,6 +138,17 @@
 			}
 		}
 
+		private static boolean parseBoolean(String value) throws CLIParserException {
+			switch (value) {
+				case "true":
+					return true;
+				case "false":
+					return false;
+				default:
+					throw new CLIParserException("Value „" + value + "“ is not a valid boolean. Expecting „true“ or „false“.");
+			}
+		}
+
 		/**
 		 * Parse String arguments and fill values into the options object.
 		 *