ดึงภาพจาก PDF ใน JavaScript via C++

    var ffileExtractImage = function (e) {
        const file_reader = new FileReader();
        file_reader.onload = (event) => {
        /*Extract image from a PDF-file with template "ResultPdfExtractImage{0:D2}.jpg" ({0}, {0:D2}, {0:D3}, ... format page number), resolution 150 DPI and save*/
        const json = AsposePdfExtractImage(event.target.result, e.target.files[0].name, "ResultPdfExtractImage{0:D2}.jpg", 150);
        if (json.errorCode == 0) {
            document.getElementById('output').textContent = "Files(images) count: " + json.filesCount.toString();
            /*Make links to result files*/
            for (let fileIndex = 0; fileIndex < json.filesCount; fileIndex++) DownloadFile(json.filesNameResult[fileIndex], "image/jpeg");
        }
        else document.getElementById('output').textContent = json.errorText;
        }
        file_reader.readAsArrayBuffer(e.target.files[0]);
    }