Combine multiple PDFs into one.
npm install combine-pdfs
const { promises: fs } = require("fs");
const combinePdfs = require("combine-pdfs");
await fs.writeFile("output.pdf", await combinePdfs([
await fs.readFile("file.pdf"),
await fs.readFile("file2.pdf")
]));
Type: Array<string | Uint8Array | ArrayBuffer | Buffer>
The PDFs to combine.