استخراج متن از PDF در JavaScript

    var ffileExtract = function (e) {
        const file_reader = new FileReader();
        file_reader.onload = (event) => {
        /*Extract text from a PDF-file*/
        const json = AsposePdfExtractText(event.target.result, e.target.files[0].name);
        if (json.errorCode == 0) document.getElementById('output').textContent = json.extractText;
        else document.getElementById('output').textContent = json.errorText;
        };
        file_reader.readAsArrayBuffer(e.target.files[0]);
    };