https://nodejs.dev/learn/reading-files-with-nodejs
https://nodejs.dev/learn/writing-files-with-nodejs
const fs = require("fs")
try {
// read from local folder
const localPDF = fs.readFileSync('PDFs/myFile.pdf')
//write back to local folder
fs.writeFileSync('PDFs/writtenBack.pdf', localPDF )
} catch (err) {
console.error(err)
}
Converting to Base64
try {
// read from local folder
const localPDF = fs.readFileSync('PDFs/myFile.pdf')
const localBase64 = localPDF.toString('base64')
//write back to local folder
fs.writeFileSync(`PDFs/writtenBack.pdf`, localBase64, {encoding: 'base64'})
} catch (err) {
console.error(err)
}
Reading and writing using streams with pipe
//read and write local file
const reader = fs.createReadStream("PDFs/myFile.pdf")
const writer = fs.createWriteStream('PDFs/writtenBack.pdf');
reader.pipe(writer)
