JavaScript barcode generator supporting over 100 types and standards. 

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bwip-js

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  "description": "JavaScript barcode generator supporting over 100 types and standards.",

          "import":  "./dist/bwip-js.mjs",

          "require": "./dist/bwip-js.js",

          "script":  "./dist/bwip-js-min.js"

              "import": "./dist/bwip-js-node.mjs",

              "require": "./dist/bwip-js-node.js"

          "import": "./dist/bwip-js.mjs",

          "import":  "./dist/bwip-js-node.mjs",

          "require": "./dist/bwip-js-node.js"

  "react-native": "./dist/bwip-js-rn.mjs",

    "test": "echo \"Error: no test specified\" && exit 1"

    "url": "https://github.com/metafloor/bwip-js.git"

  "author": "Mark Warren <mwarren@metafloor.com>",

    "url": "https://github.com/metafloor/bwip-js/issues"

  "homepage": "https://github.com/metafloor/bwip-js"

bwip-js is a translation to native JavaScript of the amazing code provided in [Barcode Writer in Pure PostScript](https://github.com/bwipp/postscriptbarcode).  The translated code can run on any modern browser or JavaScript-based server framework.

The software has encoding modules for over 100 different barcode types and standards.

All linear and two-dimensional barcodes in common use (and many uncommon

ones) are available.  An exhaustive list of supported barcode types can be

found at the end of this document.  Barcode images are generated as png (node-js) or to a canvas (browser).

* Current bwip-js version is 3.4.4 (2023-07-27)

* Current bwip-js version is 3.4.5 (2023-08-01)

* Browser compatibility: Edge, Firefox, Chrome

* [Command Line](#command-line-interface)

* [Home Page](http://metafloor.github.io/bwip-js/)

* [github Repository](https://github.com/metafloor/bwip-js)

* [`bwipjs` Methods Reference](https://github.com/metafloor/bwip-js/wiki/Methods-Reference)

* [Online Barcode Generator](http://metafloor.github.io/bwip-js/demo/demo.html)

* [Online Barcode API](https://github.com/metafloor/bwip-js/wiki/Online-Barcode-API)

* [npm Page](https://www.npmjs.com/package/bwip-js)

* [BWIPP Documentation](https://github.com/bwipp/postscriptbarcode/wiki)

* [Differences From BWIPP](https://github.com/metafloor/bwip-js/wiki/Differences-From-BWIPP)

* [Supported Barcode Types](https://github.com/metafloor/bwip-js/wiki/BWIPP-Barcode-Types)

* [Using Your Own Fonts](https://github.com/metafloor/bwip-js/wiki/Using-Your-Own-Fonts)

* [Annotated Example Drawing Object](https://github.com/metafloor/bwip-js/wiki/Annotated-Example-Drawing-Object)

* [Working with the Raw BWIPP Rendering Data](https://github.com/metafloor/bwip-js/wiki/Notes-on-the-Raw-BWIPP-Data)

You can download the latest npm module using:

(The bwip-js master branch and the npm version are kept sync'd.)

An [online barcode generator](http://metafloor.github.io/bwip-js/demo/demo.html)

demonstrates all of the features of bwip-js.  The app is also available 

in the root bwip-js directory.  See [Demo Apps](#demo-apps).

A bwip-js barcode service is available online, ready to serve up barcode images

You can generate barcodes from anywhere on the web.  Embed the URLs in your

HTML documents or retrieve the barcode images directly from your non-JavaScript

server.  (JavaScript-based servers should use the bwip-js code directly - it will

For details on how to use this service, see [Online Barcode API](https://github.com/metafloor/bwip-js/wiki/Online-Barcode-API).

Most of the public methods of the bwip-js export use an options object.  Only two values are required:

- `bcid` : The name of the barcode type/symbol.

All remaining options are optional, though you may find some quite useful.

The options values can be divided into two parts, bwip-js specific options and BWIPP options.

- `scaleX` : The x-axis scaling factor.  Must be an integer > 0.  Default is 2.

- `scaleY` : The y-axis scaling factor.  Must be an integer > 0.  Default is `scaleX`.

- `scale` : Sets both the x-axis and y-axis scaling factors.  Must be an integer > 0.

- `rotate` : Allows rotating the image to one of the four orthogonal orientations.  A string value.  Must be one of:

    - `'N'` : Normal (not rotated).  The default.

    - `'R'` : Clockwise (right) 90 degree rotation.

    - `'L'` : Counter-clockwise (left) 90 degree rotation.

    - `'I'` : Inverted 180 degree rotation.

- `binarytext` : The default behavior is to encode the `text` string as UTF-8 binary bytes.  If the text is already 8-bit encoded, you can disable this behavior by setting the flag to `true`.

- `padding` : Shorthand for setting `paddingtop`, `paddingleft`, `paddingright`, and `paddingbottom`.

- `paddingwidth` : Shorthand for setting `paddingleft` and `paddingright`.

- `paddingheight` : Shorthand for setting `paddingtop` and `paddingbottom`.

- `paddingtop` : Sets the height of the padding area, in points, on the top of the barcode image. Rotates and scales with the image.

- `paddingleft` : Sets the width of the padding area, in points, on the left side of the barcode image. Rotates and scales with the image.

- `paddingright` : Sets the width of the padding area, in points, on the right side of the barcode image. Rotates and scales with the image.

- `paddingbottom` : Sets the height of the padding area, in points, on the bottom of the barcode image. Rotates and scales with the image.

- `backgroundcolor` : This is actually a BWIPP option but is better handled by the bwip-js drawing code.  Takes either a hex RRGGBB or hex CCMMYYKK string value or CSS-style #RGB or #RRGGBB string value.

For the BWIPP specific options, you will need to consult the

[BWIPP documentation](https://github.com/bwipp/postscriptbarcode/wiki)

to determine what options are available for each barcode type.

The BWIPP color options (e.g. `barcolor`, `textcolor`, `bordercolor`) can be specified using either the BWIPP RRGGBB and CCMMYYKK formats or the CSS-style #RGB and #RRGGBB formats.

Note that bwip-js normalizes the BWIPP `width` and `height` options to always be in millimeters.

The resulting images are rendered at 72 dpi.  To convert to pixels, use a factor of 2.835 px/mm

    // Sentinel to simplify moving entries around in the list.

    // loadFont(name, multy, multx, data)   // note order: y,x

    // data must be the font data, either a binary or base64 encoded string.

    function loadFont(name /*...args*/) {

        } else if (arguments.length == 3) {

            multx = multy = +arguments[1] || 100;

        } else if (arguments.length == 4) {

            multy = +arguments[1] || 100;

            multx = +arguments[2] || 100;

            throw new Error("loadFont(): invalid number of arguments");

            throw new Error("bwipjs: loadFont: invalid number of arguments");

        var font = STBTT.InitFont(toUint8Array(data));

        names[name.toUpperCase()] = fontid;

    // Always returns a valid font-id (default OCR-B)

        var fontid = names[name.toUpperCase()];

        return fontid === undefined ? 1 : fontid;       // OCR B default

            throw new Error('fontlib: monochrome not implemented');

            throw new Error('bwipjs: monochrome fonts not implemented');

    function getglyph(fontid, charcode, width, height) {

        if (fontid < 0 || fontid >= fonts.length) {

		{
		"name": "bwip-js",
		"version": "3.4.4",
		"version": "3.4.5",
		"description": "JavaScript barcode generator supporting over 100 types and standards.",
		"main": "./dist/bwip-js-node.js",
		"browser": "./dist/bwip-js.js",
		"exports": {
		@@ -26,2 +24,4 @@ "browser": {
		},
		"main": "./dist/bwip-js-node.js",
		"browser": "./dist/bwip-js.js",
		"react-native": "./dist/bwip-js-rn.mjs",
		@@ -28,0 +28,0 @@ "bin": {

		@@ -14,3 +14,3 @@ # // Barcode Writer in Pure JavaScript

		* Current bwip-js version is 3.4.4 (2023-07-27)
		* Current bwip-js version is 3.4.5 (2023-08-01)
		* Current BWIPP version is 2023-04-03
		@@ -17,0 +17,0 @@ * Node.js compatibility: 0.12+

		@@ -40,3 +40,3 @@ // fontlib.js
		} else {
		throw new Error("loadFont(): invalid number of arguments");
		throw new Error("bwipjs: loadFont: invalid number of arguments");
		}
		@@ -63,3 +63,3 @@
		if (mono) {
		throw new Error('fontlib: monochrome not implemented');
		throw new Error('bwipjs: monochrome fonts not implemented');
		}
		@@ -173,1 +173,7 @@ }

		// This is needed to make the default exports traceable by esbuild
		// during its tree shaking phase. See issue #298.
		function LoadFont() {
		return FontLib.loadFont.apply(FontLib, Array.prototype.slice.call(arguments));
		}

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