@pixdif/pdf-parser/base/PdfPage.js

PDF Parser

import { Readable } from 'stream';
import { Page } from '@pixdif/parser';
export default class PdfPage extends Page {
    document;
    title;
    proxy;
    constructor(document, title, proxy) {
        super();
        this.document = document;
        this.title = title;
        this.proxy = proxy;
    }
    getTitle() {
        return this.title;
    }
    isCached() {
        return false;
    }
    async render() {
        const canvasFactory = this.document.canvasFactory;
        const viewport = this.proxy.getViewport({ scale: 2 });
        const { canvas, context } = canvasFactory.create(viewport.width, viewport.height);
        const renderContext = {
            canvasContext: context,
            viewport,
        };
        await this.proxy.render(renderContext).promise;
        return Readable.fromWeb(canvas.encodeStream('png'));
    }
}