How to alert selected text from pdf using javascript?
Question
I have embedded a page with a pdf and a button. I want that when user select some text from pdf and click on button then it should alert with the text that he/she has selected. Following is my code :
<html>
<head>
<script>
function getSelText(){
var txt = '';
if (window.getSelection) {
txt = window.getSelection();
} else if (document.getSelection) {
txt = document.getSelection();
} else if (document.selection) {
txt = document.selection.createRange().text;
} else return;
//document.Editor.selectedtext.value = txt;
alert(txt);
console.log("Text = "+txt);
}
</script>
</head>
<body>
<input type="button" value="Get selection" onmousedown="getSelText()">
<embed src="SamplePDF.pdf" width="700px" height="650px" id="pdf" onblur="CopyToClipboard(this)">
</body>
</html>
I have tried this but this is only work for non-pdf data, please help me out.
1 answers
solution1
0 2015-07-16 12:49:03
Check out PDF.js , it's a commonly used JavaScript library that contains a lot of methods for PDF manipulation.
1) PDFJS.getDocument( data ).then( function(pdf) {
// set your Pdf to the Function 2) pdf.getPage(i).then( function(page){
// Read the Number of Pages
3) page.getTextContent().then( function(textContent){
//Get the Data Context For Event handler,
In the viewer.js , there are some listeners like:
window.addEventListener('mousedown', function mousedown(evt) {..}
window.addEventListener('mousemove', function keydown(evt) {..}
You can use those to do the logic of your dragging, selecting, ..
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