diff --git a/src/main/java/pro/litvinovg/w2phtml/gui/ConfigurationWindow.java b/src/main/java/pro/litvinovg/w2phtml/gui/ConfigurationWindow.java
index 1c17f12..8d0ff9b 100644
--- a/src/main/java/pro/litvinovg/w2phtml/gui/ConfigurationWindow.java
+++ b/src/main/java/pro/litvinovg/w2phtml/gui/ConfigurationWindow.java
@@ -236,6 +236,9 @@ public class ConfigurationWindow extends JFrame {
 
 		
 		JLabel lb_TargetFormat_description = new JLabel("Target format");
+		JTextField tf_OutputFile = new JTextField("");
+		configuration.put("outputFile", tf_OutputFile);
+		tf_OutputFile.setColumns(10);
 		
 		JButton btnChooseFile = new JButton("Choose");
 		btnChooseFile.addActionListener(new ActionListener() {
@@ -244,12 +247,12 @@ public class ConfigurationWindow extends JFrame {
 				String newFilePath = fileDialog.chooseFile(tf_inputFile.getText(),"odt");
 				if (newFilePath != null && !newFilePath.isEmpty()) {
 					tf_inputFile.setText(newFilePath);
+					setOutputFilePath(newFilePath,tf_OutputFile,"epub");
+
 				}
 			}
 		});
-		JTextField tf_OutputFile = new JTextField("");
-		configuration.put("outputFile", tf_OutputFile);
-		tf_OutputFile.setColumns(10);
+
 		
 		JButton btn_ChooseOutputFile = new JButton("Choose");
 		btn_ChooseOutputFile.addActionListener(new ActionListener() {
@@ -439,6 +442,11 @@ public class ConfigurationWindow extends JFrame {
 		configuration.put("targetFormat", lb_TargetFormat);
 		JLabel lb_TargetFormat_description = new JLabel("Target format");
 		
+		JLabel lb_OutFilePath = new JLabel("Output file path");
+		JTextField tf_OutputFile = new JTextField("");
+		tf_OutputFile.setColumns(10);
+		configuration.put("outputFile", tf_OutputFile);
+		
 		JButton btn_ChooseInputFile = new JButton("Choose");
 		btn_ChooseInputFile.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
@@ -446,16 +454,12 @@ public class ConfigurationWindow extends JFrame {
 				String newFilePath = fileDialog.chooseFile(tf_inputFile.getText(),"odt");
 				if (newFilePath != null && !newFilePath.isEmpty()) {
 					tf_inputFile.setText(newFilePath);
+					setOutputFilePath(newFilePath,tf_OutputFile,"html");
 				}
 			}
-		});
-		
-		JLabel lb_OutFilePath = new JLabel("Output file path");
-		
-		JTextField tf_OutputFile = new JTextField("");
-		configuration.put("outputFile", tf_OutputFile);
 
-		tf_OutputFile.setColumns(10);
+			
+		});
 		
 		JButton btn_ChooseOutputFile = new JButton("Choose");
 		btn_ChooseOutputFile.addActionListener(new ActionListener() {
@@ -588,6 +592,47 @@ public class ConfigurationWindow extends JFrame {
 		return panel_configHTML;
 	}
 	
+	protected void setOutputFilePath(String newFilePath, JTextField tf_OutputFile, String extension) {
+		
+		File inputFile = new File(newFilePath);
+		if (!inputFile.exists()) {
+			return;
+		}
+		File parent = inputFile.getParentFile();
+		if (parent == null) {
+			return;
+		}
+		if (!parent.canWrite()){
+			//TODO: Warning message
+		}
+		if (newFilePath.length() < 3) {
+			return;
+		}
+		String outputPath = newFilePath.substring(0, newFilePath.length()-3) + extension;
+		tf_OutputFile.setText(outputPath);
+	}
+
+	protected void setMetadataFilePath(String newFilePath, JTextField tf_MetadataFile, String extension) {
+		
+		File inputFile = new File(newFilePath);
+		if (!inputFile.exists()) {
+			return;
+		}
+		File parent = inputFile.getParentFile();
+		if (parent == null) {
+			return;
+		}
+		if (newFilePath.length() < 3) {
+			return;
+		}
+		String metadataPath = newFilePath.substring(0, newFilePath.length()-3) + extension;
+		File metaFile = new File(metadataPath);
+		if (metaFile.exists() && metaFile.canRead()){
+			tf_MetadataFile.setText(metadataPath);	
+		}
+		
+	}
+
 	private JPanel createConfigRDFPanel(HashMap<String, Component> configuration) {
 		JPanel panel_configHTML = new JPanel();
 		
@@ -648,6 +693,22 @@ public class ConfigurationWindow extends JFrame {
 
 		
 		JLabel lb_TargetFormat_description = new JLabel("Target format");
+
+		JLabel lb_OutFilePath = new JLabel("Output file path");
+		
+		JTextField tf_OutputFile = new JTextField("");
+		configuration.put("outputFile", tf_OutputFile);
+		tf_OutputFile.setColumns(10);
+		
+		String[] types = {"статья ЭФЭ","статья энциклопедии", "книга", "журнал"};
+		JComboBox cbox_type = new JComboBox(types);
+		
+		JLabel lb_type = new JLabel("Type");
+		
+		JLabel lb_metadataFilePath = new JLabel("Metadata path");
+		
+		JTextField tf_metadataPath = new JTextField("");
+		configuration.put("csv_metadata", tf_metadataPath);
 		
 		JButton btnChooseFile = new JButton("Choose");
 		btnChooseFile.addActionListener(new ActionListener() {
@@ -656,15 +717,13 @@ public class ConfigurationWindow extends JFrame {
 				String newFilePath = fileDialog.chooseFile(tf_inputFile.getText(),"odt");
 				if (newFilePath != null && !newFilePath.isEmpty()) {
 					tf_inputFile.setText(newFilePath);
+					setOutputFilePath(newFilePath,tf_OutputFile,"rdf");
+					setMetadataFilePath(newFilePath,tf_metadataPath,"csv");
 				}
 			}
 		});
 		
-		JLabel lb_OutFilePath = new JLabel("Output file path");
-		
-		JTextField tf_OutputFile = new JTextField("");
-		configuration.put("outputFile", tf_OutputFile);
-		tf_OutputFile.setColumns(10);
+
 		
 		JButton btn_ChooseOutputFile = new JButton("Choose");
 		btn_ChooseOutputFile.addActionListener(new ActionListener() {
@@ -676,15 +735,7 @@ public class ConfigurationWindow extends JFrame {
 				}
 			}
 		});
-		String[] types = {"статья ЭФЭ","статья энциклопедии", "книга", "журнал"};
-		JComboBox cbox_type = new JComboBox(types);
-		
-		JLabel lb_type = new JLabel("Type");
-		
-		JLabel lb_metadataFilePath = new JLabel("Metadata path");
-		
-		JTextField tf_metadataPath = new JTextField("");
-		configuration.put("csv_metadata", tf_metadataPath);
+
 
 		tf_metadataPath.setColumns(10);