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ScannerJS: JavaScript web scan JPG PDF images from TWAIN WIA scanners in browser (Chrome, Edge, Firefox or IE)
Scanner.js enables HTML JavaScript scanning in web browsers (Chrome, Edge, Firefox, IE). Scan documents from TWAIN WIA scanners in browsers and upload to the server side, which can be written in any script (Java, C# VB ASP.NET, PHP, Python, Ruby). JPEG, PDF, TIFF are supported.
function scanToWebPageAndUpload() {
scanner.scan(displayImagesOnPage, {
"twain_cap_setting" : {
"ICAP_PIXELTYPE" : "TWPT_RGB", // Color
"ICAP_SUPPORTEDSIZES" : "TWSS_USLETTER" // Paper size: TWSS_USLETTER, TWSS_A4, ...
},
"output_settings" : [
{ "type" : "return-base64", "format" : "jpg"} // return images to web page
{ "type": "upload", "format": "pdf", // upload as PDF
"upload_target": {
"url": "https://asprise.com/scan/applet/upload.php?action=dump"
}
}
]
});
}
bower install scanner
Install Scanner.js:
bower install scanner
Include scanner.js into your page:
<script src="bower_components/scanner/dist/scanner.js"></script>
You may then start to call Scanner.js functions:
<button type="button" onclick="scan();">Scan</button> <!-- Triggers scan -->
<div id="images"/> <!-- Displays scanned images -->
<script type="text/javascript" >
// Need to upload scanned images to server or save them on hard disk? Please refer to the dev guide: http://asprise.com/document-scan-upload-image-browser/ie-chrome-firefox-scanner-docs.html
// For more scanning code samples, please visit https://github.com/Asprise/scannerjs.javascript-scanner-access-in-browsers-chrome-ie.scanner.js
var scanRequest = {
"use_asprise_dialog": true, // Whether to use Asprise Scanning Dialog
"show_scanner_ui": false, // Whether scanner UI should be shown
"twain_cap_setting": { // Optional scanning settings
"ICAP_PIXELTYPE": "TWPT_RGB" // Color
},
"output_settings": [{
"type": "return-base64",
"format": "jpg"
}]
};
/** Triggers the scan */
function scan() {
scanner.scan(displayImagesOnPage, scanRequest);
}
/** Processes the scan result */
function displayImagesOnPage(successful, mesg, response) {
if (!successful) { // On error
console.error('Failed: ' + mesg);
return;
}
if (successful && mesg != null && mesg.toLowerCase().indexOf('user cancel') >= 0) { // User cancelled.
console.info('User cancelled');
return;
}
var scannedImages = scanner.getScannedImages(response, true, false); // returns an array of ScannedImage
for (var i = 0;
(scannedImages instanceof Array) && i < scannedImages.length; i++) {
var scannedImage = scannedImages[i];
var elementImg = scanner.createDomElementFromModel({
'name': 'img',
'attributes': {
'class': 'scanned',
'src': scannedImage.src
}
});
(document.getElementById('images') ? document.getElementById('images') : document.body).appendChild(elementImg);
}
}
</script>
FAQs
ScannerJS: JavaScript web scan JPG PDF images from TWAIN WIA scanners in browser (Chrome, Edge, Firefox or IE)
The npm package scanner-js receives a total of 58 weekly downloads. As such, scanner-js popularity was classified as not popular.
We found that scanner-js demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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