diff --git a/bigbluebutton-web/grails-app/services/org/bigbluebutton/web/services/PresentationService.groovy b/bigbluebutton-web/grails-app/services/org/bigbluebutton/web/services/PresentationService.groovy
index 9f48208a55..4d076bb94a 100644
--- a/bigbluebutton-web/grails-app/services/org/bigbluebutton/web/services/PresentationService.groovy
+++ b/bigbluebutton-web/grails-app/services/org/bigbluebutton/web/services/PresentationService.groovy
@@ -16,15 +16,15 @@
 * with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 *
 */
-package org.bigbluebutton.web.services
-
-import java.util.concurrent.*;
+package org.bigbluebutton.web.services
+
+import java.util.concurrent.*;
 import java.lang.InterruptedException
 import org.bigbluebutton.presentation.DocumentConversionService
 import org.bigbluebutton.presentation.UploadedPresentation
-
-class PresentationService {
-
+
+class PresentationService {
+
     static transactional = false
 	DocumentConversionService documentConversionService
 	def presentationDir
@@ -34,81 +34,81 @@ class PresentationService {
 	def testUploadedPresentation
 	def defaultUploadedPresentation
 	def presentationBaseUrl
-	
-  def deletePresentation = {conf, room, filename ->
-    		def directory = new File(roomDirectory(conf, room).absolutePath + File.separatorChar + filename)
-    		deleteDirectory(directory) 
-	}
-	
-	def deleteDirectory = {directory ->
-		log.debug "delete = ${directory}"
-		/**
-		 * Go through each directory and check if it's not empty.
-		 * We need to delete files inside a directory before a
-		 * directory can be deleted.
-		**/
-		File[] files = directory.listFiles();				
-		for (int i = 0; i < files.length; i++) {
-			if (files[i].isDirectory()) {
-				deleteDirectory(files[i])
-			} else {
-				files[i].delete()
-			}
-		}
-		// Now that the directory is empty. Delete it.
-		directory.delete()	
-	}
-	
-	def listPresentations = {conf, room ->
-		def presentationsList = []
-		def directory = roomDirectory(conf, room)
-		log.debug "directory ${directory.absolutePath}"
-		if( directory.exists() ){
-			directory.eachFile(){ file->
-				System.out.println(file.name)
-				if( file.isDirectory() )
-					presentationsList.add( file.name )
-			}
-		}	
-		return presentationsList
-	}
+	
+  def deletePresentation = {conf, room, filename ->
+    		def directory = new File(roomDirectory(conf, room).absolutePath + File.separatorChar + filename)
+    		deleteDirectory(directory) 
+	}
+	
+	def deleteDirectory = {directory ->
+		log.debug "delete = ${directory}"
+		/**
+		 * Go through each directory and check if it's not empty.
+		 * We need to delete files inside a directory before a
+		 * directory can be deleted.
+		**/
+		File[] files = directory.listFiles();				
+		for (int i = 0; i < files.length; i++) {
+			if (files[i].isDirectory()) {
+				deleteDirectory(files[i])
+			} else {
+				files[i].delete()
+			}
+		}
+		// Now that the directory is empty. Delete it.
+		directory.delete()	
+	}
+	
+	def listPresentations = {conf, room ->
+		def presentationsList = []
+		def directory = roomDirectory(conf, room)
+		log.debug "directory ${directory.absolutePath}"
+		if( directory.exists() ){
+			directory.eachFile(){ file->
+				System.out.println(file.name)
+				if( file.isDirectory() )
+					presentationsList.add( file.name )
+			}
+		}	
+		return presentationsList
+	}
 
   def getPresentationDir = {
     return presentationDir
-  }
-	
-	def processUploadedPresentation = {uploadedPres ->	
+  }
+	
+	def processUploadedPresentation = {uploadedPres ->	
 		// Run conversion on another thread.
 		Timer t = new Timer(uploadedPres.getName(), false)
 		
-		t.runAfter(1000) {
+		t.runAfter(1000) {
 			try {
 				documentConversionService.processDocument(uploadedPres)
 			} finally {
 		    t.cancel()
 			} 
-		}
-	}
- 	
-	def showSlide(String conf, String room, String presentationName, String id) {
-		new File(roomDirectory(conf, room).absolutePath + File.separatorChar + presentationName + File.separatorChar + "slide-${id}.swf")
+		}
+	}
+ 	
+	def showSlide(String conf, String room, String presentationName, String id) {
+		new File(roomDirectory(conf, room).absolutePath + File.separatorChar + presentationName + File.separatorChar + "slide-${id}.swf")
 	}
 	
 	def showPngImage(String conf, String room, String presentationName, String id) {
 		new File(roomDirectory(conf, room).absolutePath + File.separatorChar + presentationName + File.separatorChar + "pngs" + File.separatorChar + id)
-	}
-	
-	def showPresentation = {conf, room, filename ->
-		new File(roomDirectory(conf, room).absolutePath + File.separatorChar + filename + File.separatorChar + "slides.swf")
-	}
-	
+	}
+	
+	def showPresentation = {conf, room, filename ->
+		new File(roomDirectory(conf, room).absolutePath + File.separatorChar + filename + File.separatorChar + "slides.swf")
+	}
+	
 	def showThumbnail = {conf, room, presentationName, thumb ->
-		println "Show thumbnails request for $presentationName $thumb"
-		def thumbFile = roomDirectory(conf, room).absolutePath + File.separatorChar + presentationName + File.separatorChar +
-					"thumbnails" + File.separatorChar + "thumb-${thumb}.png"
-		log.debug "showing $thumbFile"
-		
-		new File(thumbFile)
+		println "Show thumbnails request for $presentationName $thumb"
+		def thumbFile = roomDirectory(conf, room).absolutePath + File.separatorChar + presentationName + File.separatorChar +
+					"thumbnails" + File.separatorChar + "thumb-${thumb}.png"
+		log.debug "showing $thumbFile"
+		
+		new File(thumbFile)
 	}
 	
 	def showTextfile = {conf, room, presentationName, textfile ->
@@ -118,19 +118,19 @@ class PresentationService {
 		log.debug "showing $txt"
 		
 		new File(txt)
-	}
-	
-	def numberOfThumbnails = {conf, room, name ->
-		def thumbDir = new File(roomDirectory(conf, room).absolutePath + File.separatorChar + name + File.separatorChar + "thumbnails")
-		thumbDir.listFiles().length
+	}
+	
+	def numberOfThumbnails = {conf, room, name ->
+		def thumbDir = new File(roomDirectory(conf, room).absolutePath + File.separatorChar + name + File.separatorChar + "thumbnails")
+		thumbDir.listFiles().length
 	}
 	
 	def numberOfTextfiles = {conf, room, name ->
 		log.debug roomDirectory(conf, room).absolutePath + File.separatorChar + name + File.separatorChar + "textfiles"
 		def textfilesDir = new File(roomDirectory(conf, room).absolutePath + File.separatorChar + name + File.separatorChar + "textfiles")
 		textfilesDir.listFiles().length
-	}
-	
+	}
+	
   def roomDirectory = {conf, room ->
       return new File(presentationDir + File.separatorChar + conf + File.separatorChar + room)
   }
@@ -160,20 +160,20 @@ class PresentationService {
 	def getFile = {conf, room, presentationName ->
 		println "download request for $presentationName"
 		def fileDirectory = new File(roomDirectory(conf, room).absolutePath + File.separatorChar + presentationName + File.separatorChar +
-		"download")
+"download")
 		//list the files of the download directory ; it must have only 1 file to download
 		def list = fileDirectory.listFiles()
 		//new File(pdfFile)
 		list[0]
 	}
-	
-}	
-
-/*** Helper classes **/
-import java.io.FilenameFilter;
-import java.io.File;
-class PngFilter implements FilenameFilter {
-    public boolean accept(File dir, String name) {
-        return (name.endsWith(".png"));
-    }
+	
+}	
+
+/*** Helper classes **/
+import java.io.FilenameFilter;
+import java.io.File;
+class PngFilter implements FilenameFilter {
+    public boolean accept(File dir, String name) {
+        return (name.endsWith(".png"));
+    }
 }