diff --git a/.gitignore b/.gitignore
index 3c3629e..eb79dd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 node_modules
+.idea
diff --git a/README.md b/README.md
index af8fcde..54dd1d6 100644
--- a/README.md
+++ b/README.md
@@ -1,68 +1,3 @@
 # Tesseract for node.js
 
-[![NPM](https://nodei.co/npm/node-tesseract.png)](https://nodei.co/npm/node-tesseract/)
-
-A simple wrapper for the Tesseract OCR package for node.js
-
-## Requirements
-
-* Tesseract 3.01 or higher is needed for this to work
-
-## Installation
-There is a hard dependency on the [Tesseract project](https://github.com/tesseract-ocr/tesseract).  You can find installation instructions for various platforms on the project site. For Homebrew users, the installation is quick and easy.
-
-    brew install tesseract --with-all-languages
-
-The above will install all of the language packages available, if you don't need them all you can remove the `--all-languages` flag and install them manually, by downloading them to your local machine and then exposing the `TESSDATA_PREFIX` variable into your path:
-
-    export TESSDATA_PREFIX=~/Downloads/
-
-You can then go about installing the node-module to expose the JavaScript API:
-
-    npm install node-tesseract
-
-## Usage
-
-```JavaScript
-var tesseract = require('node-tesseract');
-
-// Recognize text of any language in any format
-tesseract.process(__dirname + '/path/to/image.jpg',function(err, text) {
-	if(err) {
-		console.error(err);
-	} else {
-		console.log(text);
-	}
-});
-
-// Recognize German text in a single uniform block of text and set the binary path
-
-var options = {
-	l: 'deu',
-	psm: 6,
-	binary: '/usr/local/bin/tesseract'
-};
-
-tesseract.process(__dirname + '/path/to/image.jpg', options, function(err, text) {
-	if(err) {
-		console.error(err);
-	} else {
-		console.log(text);
-	}
-});
-```
-
-## Changelog
-* **0.2.7**: Adds output file extension detection
-* **0.2.6**: Catches exception when deleting tmp files that do not exist
-* **0.2.5**: Preserves whitespace and replaces tmp module
-* **0.2.4**: Removes console logging for messaging
-* **0.2.3**: The ability to set the binary path via the config object.  Better installation documentation.
-* **0.2.2**: Adds test converage to utils module
-* **0.2.1**: Strips leading & trailing whitespace from output by default
-* **0.2.0**: Adds ability to pass options via a configuration object.
-* **0.1.1**: Updates tmp module.
-* **0.1.0**: Removes preprocessing functionatlity.  See #3.
-* **0.0.3**: Adds basic test coverage for process method
-* **0.0.2**: Pulls in changes by [joscha](https://github.com/joscha) including: refactored to support tesseract 3.01, added language parameter, config parameter, documentation, Added support for custom preprocessors, OTB Preprocessor using ImageMagick 'convert'
-* **0.0.1**: Initial version
+This project is fork from [node-tesseract](https://github.com/desmondmorris/node-tesseract)
diff --git a/lib/tesseract.js b/lib/tesseract.js
index 2f7e13c..9a70b01 100644
--- a/lib/tesseract.js
+++ b/lib/tesseract.js
@@ -63,7 +63,7 @@ var Tesseract = {
     }
 
     if (options.psm !== null) {
-      command.push('-psm ' + options.psm);
+      command.push('--psm ' + options.psm);
     }
 
     if (options.config !== null) {
@@ -83,7 +83,7 @@ var Tesseract = {
       }
 
       // Find one of the three possible extension
-      glob(output + '.+(html|hocr|txt)', function(err, files){
+      glob(output + '.+(html|hocr|txt)', function(err, files) {
         if (err) {
           callback(err, null);
           return;
@@ -97,7 +97,12 @@ var Tesseract = {
           var index = Tesseract.tmpFiles.indexOf(output);
           if (~index) Tesseract.tmpFiles.splice(index, 1);
 
-          fs.unlinkSync(files[0]);
+          fs.unlink(files[0], (err) => {
+            if (err) {
+              callback(err, null);
+              return;
+            }
+          });
 
           callback(null, data)
         });
diff --git a/test/tesseract.js b/test/tesseract.js
deleted file mode 100644
index bd64c53..0000000
--- a/test/tesseract.js
+++ /dev/null
@@ -1,19 +0,0 @@
-'use strict';
-
-var tesseract = require('../lib/tesseract');
-var should = require('should');
-
-
-describe('process', function(){
-  it('should return the string "node-tesseract"', function(done){
-
-    var testImage = __dirname + '/test.png';
-
-    tesseract.process(testImage, function(err, text) {
-      text.trim().should.equal('node-tesseract');
-      done();
-    });
-
-  })
-})
-
diff --git a/test/test.png b/test/test.png
deleted file mode 100644
index 9ebe362..0000000
Binary files a/test/test.png and /dev/null differ
diff --git a/test/utils.js b/test/utils.js
deleted file mode 100644
index c6f250a..0000000
--- a/test/utils.js
+++ /dev/null
@@ -1,17 +0,0 @@
-'use strict';
-
-var utils = require('../lib/utils');
-var should = require('should');
-
-
-describe('Tests merge helper', function () {
-  it('object should have all properties', function () {
-    var objA = {'a': 'A', 'b': 'B'},
-        objB = {'c': 'C', 'd': 'D'},
-        objC = utils.merge(objA, objB);
-    objC.should.have.property('a', 'A');
-    objC.should.have.property('b', 'B');
-    objC.should.have.property('c', 'C');
-    objC.should.have.property('d', 'D');
-  });
-});
diff --git a/wercker.yml b/wercker.yml
deleted file mode 100644
index eaa7f3e..0000000
--- a/wercker.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-box: wercker/nodejs
-# Build definition
-build:
-
-  steps:
-    - script:
-        name: install tesseract
-        code: |
-          sudo apt-get update -qq
-          sudo apt-get install -qq tesseract-ocr
-    - npm-install
-    - npm-test