		{
		"name": "ghostscript4js",
		"description": "Bindings for the Ghostscript C API to bring Ghostscript power to the Node.JS world.",
		"version": "1.0.3",
		"version": "1.0.5",
		"contributors": [
		@@ -6,0 +6,0 @@ {

README.md

		@@ -36,3 +36,3 @@ <p align="center">
		Ghostscript can also serve as the back-end for PDF to raster image (png, tiff, jpeg, etc.) converter; this is often
		combined with a PostScript printer driver in "virtual printer" PDF creators.[citation needed]
		combined with a PostScript printer driver in "virtual printer" PDF creators.

		@@ -56,15 +56,13 @@ As it takes the form of a language interpreter, Ghostscript can also be used as a general purpose programming environment.

		At time i created this module i do not able to find any module on npm that execute Ghostscript command through its C API,
		otherwise there are some module that call Ghostscript through the execution of the corresponding shell command. This is
		good way to start use some library from node, but there are the following drawbacks:
		At the time i created this module i was not able to find any module on npm that execute Ghostscript command through its C API,
		otherwise there were some module that call Ghostscript through the execution of the corresponding shell command. This is a
		good way to start using some library from node, but there are the following drawbacks:

		* Performance - The call to the shell command take more time and more resources than call a library C or C++ API directly
		* Performance - The call to the shell command take more time and more resources than calling a library C or C++ API directly from Node.js environment.

		from Node.js environment.
		* Errror handler - Sometimes you cannot intercept and handle errors in a good and a proper way.

		* Errror handler - Sometimes you cannot intercept and handle errors in a good and proper way.
		To fit all needs Ghostscript4JS has sync and async methods so it could be used in a web application where it's very important
		to not block the event loop, so all requests will be served without any delay originated by our application.

		To fit all needs Ghostscript4JS has sync and async method so it could be used in a web application where it's very important
		to not block the event loop, so all request will be served whiout any delay originated by our application.

		[Understanding Node.js event loop](https://nodesource.com/blog/understanding-the-nodejs-event-loop/)
		@@ -76,9 +74,9 @@

		Before install Ghostscript4JS youe need to assure you have been installed the following preequisites:
		Before installing Ghostscript4JS you need to assure you have the following prerequisites:

		* Install Node.JS see: [Installing Node.js via package manager](https://nodejs.org/en/download/package-manager/)
		* Node.JS see: [Installing Node.js via package manager](https://nodejs.org/en/download/package-manager/)

		* Install Node.js native addon build tool see: [node-gyp](https://github.com/nodejs/node-gyp)
		* Node.js native addon build tool see: [node-gyp](https://github.com/nodejs/node-gyp)

		* Install Ghostscript for your Operating System.
		* Ghostscript for your Operating System.

		@@ -101,3 +99,3 @@ ## Linux

		At this point you need to set enviroment variable GS4JS_HOME to ```/usr/lib/x86_64-linux-gnu```
		At this point you need to set the enviroment variable GS4JS_HOME to ```/usr/lib/x86_64-linux-gnu```

		@@ -116,5 +114,5 @@ ### Red Hat \| Fedora

		At this point you need to set enviroment variable GS4JS_HOME to ```/usr/lib64``` or ```/usr/lib``` based on you architecture
		At this point you need to set the enviroment variable GS4JS_HOME to ```/usr/lib64``` or ```/usr/lib``` based on you architecture

		In general based on your Linux OS and architecture you have to set environment variable GS4JS_HOME to point on folder contains ```libgs.so``` library.
		In general, based on your Linux OS and architecture, you have to set the environment variable GS4JS_HOME to point on folder containing ```libgs.so``` library.

		@@ -125,5 +123,5 @@ ## Windows

		* Install Ghostscript on your system for example in ```C:\gs```
		* Install Ghostscript on your system, for example in ```C:\gs```

		* Add enviroment variable GS4JS_HOME to point on a folder contains Ghostscript DLL and Library files (Es. gsdll64.dll and gsdll64.lib) typically they are located in bin folder of you ghostscript installation for example ```C:\gs\bin```
		* Add the environment variable GS4JS_HOME to point to a folder containing Ghostscript's DLL and Library files (Es. gsdll64.dll and gsdll64.lib). Typically, they are located in bin folder of you ghostscript installation, for example ```C:\gs\bin```

		@@ -140,3 +138,3 @@ ## macOS

		* Set environment variable GS4JS_HOME to ```/usr/local/lib```
		* Set the environment variable GS4JS_HOME to ```/usr/local/lib```

		@@ -153,3 +151,3 @@ ## Official installation guide to install Ghostscript

		If you want use ghostscript4js you have to install it. There are two methods for that:
		If you want to use ghostscript4js you have to install it. There are two methods for that:

		@@ -187,9 +185,9 @@ In dependencies of your ```package.json``` add the following item:

		The module ghostscript4js allow you to use some installation options that you can use when in your operating system something is different against standard installation.
		The module ghostscript4js allows you to use some installation options that you can use when in your operating system something is different against standard installation.

		--GS4JS_HOME Set the GS4JS_HOME variable that represent the path in your system where is located the ghostscript library
		--GS4JS_HOME Set the GS4JS_HOME variable that represents the path in your system where is located the ghostscript library

		Es. ```npm install ghostscript4js --GS4JS_HOME="C:/gs/bin"```

		--GS4JS_LIB Set the GS4JS_LIB variable that represent the file name for the ghostscript library installed in your system
		--GS4JS_LIB Set the GS4JS_LIB variable that represents the file name for the ghostscript library installed in your system

		@@ -200,3 +198,3 @@ Es. ```npm install ghostscript4js --GS4JS_LIB="libgs.so"```

		--GS4JS_DLL Set the GS4JS_DLL variable that represent the file name for the ghostscript DLL installed in your windows system
		--GS4JS_DLL Set the GS4JS_DLL variable that represents the file name for the ghostscript DLL installed in your windows system

		@@ -229,6 +227,6 @@ Es. ```npm install ghostscript4js --GS4JS_DLL="gsdll64.dll"```

		version() method return an object that contains information about version of Ghostscript library
		version() method returns an object that contains information about version of Ghostscript library
		installed on the system. It is important in those circumstances where you have to take
		decision based on different version.
		The returned data aee similar to the example repoted below:
		The returned data are similar to the example repoted below:

		@@ -244,4 +242,4 @@ ```js

		This is a synchronous method and return the version info or throw an Error to indicate that
		something was wrong in executing it.
		This is a synchronous method and returns the version info or throws an Error to indicate that
		something went wrong during its execution.

		@@ -272,3 +270,3 @@ #### Example - version

		executeSync(cmd) method take the Ghostscript command parameters in input as a string and execute it in a synchronous way.
		executeSync(cmd) method takes the Ghostscript command parameters in input as a string and executes in a synchronous way.
		If something wrong happens in calling this method an Error with description and code error will be thrown.
		@@ -293,6 +291,4 @@

		execute(cmd, callback) method take in input the Ghostscript command parameters as a string and an optional callbackand. The execution will be asynchronous so
		this ensure better performance especially in a web application enviroment, because the Node.Js event loop will not block.
		This method has optional callback function as input in that case a possible error will be handled by this function. If noone function will be provided the method
		return a Promise that will be resolved or rejected all as reported in the following example.
		execute(cmd, callback) method takes in input the Ghostscript command parameters as a string and an optional callback. The execution will be asynchronous so this ensure better performance especially in a web application enviroment, because it'll not block the Node.Js event loop.
		This method has an optional callback function as input, in that case, a possible error will be handled by this function. If noone function will be provided the method returns a Promise that will be resolved or rejected as reported in the following example.

		@@ -334,11 +330,9 @@ #### Example - execute
		The error raised from ghostscript4js in all of its method is an instance of Error object that cointains a message that
		describe what happened and at the same time cointains the Ghostscript error code so you can inspect what ahhpened in a better
		way. At this link [Ghostscript error codes](https://ghostscript.com/doc/current/API.htm#return_codes) you can find all Ghostscript
		errors code.
		describes what happened and at the same time cointains the Ghostscript error code so you can inspect what happened in a better
		way. At this link [Ghostscript error codes](https://ghostscript.com/doc/current/API.htm#return_codes) you can find all Ghostscript errors code.

		### Min and Max supported revision

		This module was builded based on Ghostscript C API that is compatible with some specifica versions. The module has two
		properties MIN_SUPPORTED_REVISION and MAX_SUPPORTED_REVISION which respectively indicate the maximum and minimum of supported
		Ghostscript's version.
		This module was built based on Ghostscript C API that is compatible with some specifics versions. The module has two
		properties MIN_SUPPORTED_REVISION and MAX_SUPPORTED_REVISION which respectively indicate the minimum and maximum supported Ghostscript's version.

		@@ -387,2 +381,2 @@ #### Example - Min and Max supported revision

		Licensed under [Apache license V2](./LICENSE)
		Licensed under [Apache license V2](./LICENSE)

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