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Image Reader is a jQuery plugin to create a drag-and-drop image upload area with support for file preview (render as image or canvas) before uploading to the server.

file-input Image-Preview

Documentation

jQuery Image Reader

contributions welcome Release Dependencies GitHub license npm

A jQuery plugin that previews image very fast without needing to upload to your server. Just drag and drop it then images will be previewed.

This plugin implement FileReader API so you can asynchronously read the contents and avoid server uploads of raw user files. You can also pre-treat content like fill text or pixel manipulation before you manually upload user content to your servers.

Demo

http://ipanardian.github.io/jquery-image-reader

Usage

<!-- HTML --> <input type="file" id="upload-file" multiple /><br/> <div id="image-preview"></div>
// Simple call $('#upload-file').imageReader();  // With config and callback $('#upload-file').imageReader({     destination: '#image-preview',     onload: function(img) {         // your callback code         console.log({             width: img.width,             height: img.height         });         $(img).css('margin-top', '20px');     } });  // Canvas $('#upload-file').imageReader({     renderType: 'canvas',     onload: function(canvas) {         // do some cool things with canvas         // fill text or pixel manipulation         var ctx = canvas.getContext('2d');         ctx.font = "20px Verdana";         ctx.fillStyle = "blue";         ctx.fillText("jQuery Image Reader", 10, 30);     } });

Install

bower install jquery-image-reader    npm i jquery-image-reader 

Browser compatibility

The Uncompressed file implement new features from the JavaScript ECMA-262 specification (ES6) while the compressed file has transpiled using Babel.js into equivalent code.

Tested on Chrome 49, Safari 9.1, Firefox 43. Chrome and Firefox for Android. iPhone 5 & 6s

https://developer.mozilla.org/en-US/docs/Web/API/FileReader#Browser_compatibility

License

The MIT License (MIT)


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