เพิ่มลายเซ็นดิจิทัลไปยัง PDF ผ่าน JavaScript via C++

    var ffileSignPKCS7 = function (e) {
        const file_reader = new FileReader();
        file_reader.onload = (event) => {
        let pswSign = document.getElementById("passwordSign").value;
        /*sign a PDF-file and save the "ResultSignPKCS7.pdf"*/
        const json = AsposePdfSignPKCS7(event.target.result, e.target.files[0].name, 1, fileSign, pswSign, 200, 200, 200, 100, "TEST", "test@test.com", "EU", 1, signatureAppearance,"ResultSignPKCS7.pdf");
        if (json.errorCode == 0) document.getElementById('output').textContent = json.fileNameResult;
        else document.getElementById('output').textContent = json.errorText;
        /*make a link to download the result file*/
        DownloadFile(json.fileNameResult, "application/pdf");
        };
        file_reader.readAsArrayBuffer(e.target.files[0]);
    };