Analizar PDF para extraer campos de formulario como FDF en Node.js SDK

import path from 'node:path';

export {ParseExportFormsAsFDF};

const pdfApi = new PdfApi(APP_SID, APP_KEY);

const ParseExportFormsAsFDF = {
    async uploadDocument (documentName, localFolder, tempFolder) {
        const fileNamePath = path.join(localFolder, documentName);
        const fileData = await fs.readFile(fileNamePath);
        const storagePath = path.join(tempFolder, documentName);
        await pdfApi.uploadFile(storagePath, fileData)
            .then(() => console.log("File: '" + documentName +"' successfully uploaded."));
    },
    async downloadResult(resultName, localFolder, tempFolder, prefix) {
        const fileName = path.join(tempFolder, resultName);
        const changedPdfData = await pdfApi.downloadFile(fileName);
        const filePath = path.join(localFolder, prefix + resultName);
        await fs.writeFile(filePath, changedPdfData.body);
        console.log("Downloaded: " + filePath);
    },

    async export(documentName, outputFDFName, localFolder, remoteFolder) {
	
        if ( pdfApi ) {
            await uploadDocument(documentName, localFolder, remoteFolder);

            const fdfPath = path.join(remoteFolder, outputFDFName)
            const response = await pdfApi.putExportFieldsFromPdfToFdfInStorage( documentName, fdfPath, null, remoteFolder );

            if (response.body.code == 200) {
                console.log("ParseExportFormsAsFDF(): Pdf document '" + documentName + "' form fields successfully exported to '" + outputFDFName + "' file!");
                await downloadResult(outputFDFName, localFolder, remoteFolder, "");
            }
            else
                console.error("ParseExportFormsAsFDF(): Unexpected error!") 

        }
    }
};