React-Native convert a base64 images array to a single pdf

Question

I'm working on a mobile app in react-native / redux in which I have to convert an array of base64 images into a pdf in order to send the pdf to the back-end. Any idea about how to achieve it ?

Answer 1

Ok I finally found an easy solution with the help of react-native-image-to-pdf It is promis based. In a file I called "pdfConverter.js" I created this function

import RNImageToPdf from "react-native-image-to-pdf";

export default base64Arr => {
  // It is a promise based function
  // Create an array containing the path of each base64 images
  let base64Paths = [];
  base64Paths.length = 0; // re-initialize the array for further re-use

  base64Arr.forEach(base64 => {
    base64Paths.push(`data:image/jpeg;base64,${base64}`);
  });

  // Convert base64 images to pdf from the paths array
  return RNImageToPdf.createPDFbyImages({
    imagePaths: base64Paths,
    name: "PDF_Name"
  });
};

and then call it where I need in another file :

import toPDF from "./pdfConverter.js";

toPDF(myBase64array)
.then(pdf => {
  console.log("pdf ", pdf);
});