diff --git a/README.md b/README.md
index 6a2666d..4f1efa4 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,11 @@ Use the approach with the library promise
 		console.log(e.msg);
 	}
 ```	
+Can be used an url to video:
+```js
+   var process = new ffmpeg('https://videos_bacucket.s3.amazonaws.com/testl.mp4');
+```
+
 ## The video object
 
 Each time you create a new instance, this library provides a new object to retrieve the information of the video, the ffmpeg configuration and all methods to make the necessary conversions:
@@ -119,6 +124,7 @@ Params:
 		  , keep_aspect_ratio		: true		// Mantain the original aspect ratio
 		  , padding_color			: 'black'	// Padding color
 		  , file_name				: null		// File name
+		  , png_frame				: false		// PNG frame instead of JPG
 		}
 ```
 *	__callback__: *(optional)* If specified at the end of the process will be returned list of paths of frames created:
diff --git a/lib/ffmpeg.js b/lib/ffmpeg.js
index b655e50..2d6ac2d 100644
--- a/lib/ffmpeg.js
+++ b/lib/ffmpeg.js
@@ -197,8 +197,9 @@ var ffmpeg = function (/* inputFilepath, settings, callback */) {
 		// Get the input filepath
 		var inputFilepath = args[0];
 		// Check if file exist
-		if (!fs.existsSync(inputFilepath))
-			throw errors.renderError('fileinput_not_exist');
+		 if (!/^http/.test(inputFilepath.toLowerCase()) && !fs.existsSync(inputFilepath)){
+		 	throw errors.renderError('fileinput_not_exist');
+		 }
 		
 		// New instance of the base configuration
 		var settings = new configs();
diff --git a/lib/video.js b/lib/video.js
index 903efdb..77fda9a 100644
--- a/lib/video.js
+++ b/lib/video.js
@@ -553,9 +553,12 @@ module.exports = function (filePath, settings, infoConfiguration, infoFile) {
 		var deferred = typeof callback != 'function' ? when.defer() : { promise : null };
         // Deal with input paths that have spaces in them, by quoting them
 		for (i=0; i<inputs.length; i++) {
-		    inputs[i] = '\'' + inputs[i] + '\'';
+			if (/\s/.test(inputs[i])) {
+				inputs[i] = '\'' + inputs[i] + '\'';
+			}
 		}
-		// Create a copy of the commands list
+	
+	    // Create a copy of the commands list
 		var finalCommands = ['ffmpeg -i']
 			.concat(inputs.map(utils.addQuotes).join(' -i '))
 			.concat(commands.join(' '))
@@ -655,6 +658,7 @@ module.exports = function (filePath, settings, infoConfiguration, infoFile) {
 		  , keep_aspect_ratio		: true		// Mantain the original aspect ratio
 		  , padding_color			: 'black'	// Padding color
 		  , file_name				: null		// File name
+		  , png_frame				: false		// PNG frame instead of JPG
 		};
 
 		// Scan all arguments
@@ -808,6 +812,10 @@ module.exports = function (filePath, settings, infoConfiguration, infoFile) {
 			this.addCommand('-vsync', 0);
 			this.addFilterComplex('select=not(mod(t\\,' + parseInt((this.metadata.duration.seconds / 100) * settings.every_n_percentage) + '))');
 		}
+		if (settings.png_frame) {
+			this.addCommand('-vcodec ', 'png');
+			settings.file_name = settings.file_name.replace('.jpg','.png')
+		}
 
 		// Add destination file path to the command list
 		setOutput([destinationFolder,settings.file_name].join('/'));
diff --git a/package.json b/package.json
index 3a263c9..f752fb3 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "ffmpeg",
 	"description": "Utility for managing video streams using ffmpeg",
-	"version": "0.0.4",
+	"version": "0.0.5",
 	"author": {
 		"name": "Damiano Ciarla",
 		"email": "damiano.ciarl@gmail.com"