babel-node index.js jspdf

index.js

import {jsPDF} from "jspdf";
import {encode, decode} from 'node-base64-image';

const B64 = `data:image/png;base64,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`
const doc = new jsPDF("p", "mm", "a4");

const placeImagesOnGrid = (images, imageCount = 4, padding = 3, spacing = 5) => {
    const width = doc.internal.pageSize.getWidth();
    const height = doc.internal.pageSize.getHeight();

    const whiteSpaceX = (2 * spacing * imageCount) + (2 * padding);
    const imageSize = (width - whiteSpaceX) / imageCount;
    const renderRow = (row) => {
        for (let i = 0; i < imageCount; i++) {
            const x = padding + spacing + (i * imageSize) + (i * 2 * spacing);
            const y = padding + spacing + (row * imageSize) + (row * 2 * spacing);
            doc.addImage(images.shift(), "PNG", x, y, imageSize, imageSize);
        }
    }
    const heightNoPadding = height - (2 * padding);
    const imageWithSpacing = imageSize + (2 * spacing);
    const ROWS = Math.floor(heightNoPadding / imageWithSpacing);
    for(let i = 0; i < ROWS; i++) {
        renderRow(i);
    }
    return images;
}


const arr = [];
for (let i = 0; i < 180; i++) {
    arr.push(B64);
}

while(placeImagesOnGrid(arr).length > 0) {
    doc.addPage('a4', 'p','mm');
    console.log("new page");
}

doc.save("a4.pdf");