Converting a docx Node.js buffer into pdf file - vue.js

Question

I am trying to convert the docx document from my node buffer into a pdf document using pdfmake. The pdf is generating but it has no content inside of it. I really don't know where that problem is coming from. I don't mind not using pdfmake, I'm up for anything that can solve the problem really.
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exports.Resolution = functions.https.onCall(async (data, context) => {
const file_name = 'Resolution.docx';// this is the file saved in my firebase storage
const templateRef = await admin.storage().bucket()
.file(file_name);
const template_content = (await templateRef.download())[0];
const zip = new PizZip(template_content);
let doc;
try {
doc = new Docxtemplater(zip, { linebreaks: true });
} catch (error) {
// Catch compilation errors (errors caused by the compilation of the template : misplaced tags)
errorHandler(error);
}
doc.setData({
date: data.date,
investorName: data.investorName,
companyName: data.companyName,
regNo: data.regNo,
agreements: data.agreements,
governmentEntity: data.governmentEntity,
directors: data.directors,
equityStake: data.equityStake,
governmentEntityName: data.governmentEntityName,
fccp: data.fccp,
investorDirector:data.investorDirector,
equity: data.equity
});
try {
doc.render();
} catch (error) {
errorHandler(error);
}
const contentBuffer = doc.getZip().generate({ type: "nodebuffer" });
const nameofFile = 'Resolution Approving Transaction ' + data.investorName;
const printer = new PdfPrinter(fontss);
const chunks = [];
const pdfDoc = printer.createPdfKitDocument(contentBuffer);
pdfDoc.on('data', (chunk) => {
chunks.push(chunk);
});
pdfDoc.on('end', async () => {
const result = Buffer.concat(chunks);
function mail (){
const dest = context.auth.token.email;
const mailOptions = {
from: 'MPC <mypocketcounsel#gmail.com>',
to: dest,
cc:data.extraEmail,
subject: 'Resolution Approving Transaction',
text: 'Dear ' + data.name+ ',\n\nPlease find attached your Resolution Approving Transaction.\n\nThank you for using MPC Web. \n\n Best regards,\n\n The MPC Team.',
attachments: [
{
filename: nameofFile+'.docx',
content: contentBuffer
},
{
filename: nameofFile +'.pdf',
contentType: 'application/pdf',
content: result
}
]
};
// returning result
return transporter.sendMail(mailOptions);
}
return mail();
});
pdfDoc.on('error', (err) => {
return functions.logger.log('An error occured!');
});
pdfDoc.end();
});
`
This is the function that generates both the docx file and the pdf for me.