在 Node.js 中如何生成 PDF 文件

在本教學中，我們將深入探討如何使用 IronPDF 函式庫在 Node.js 中產生 PDF 檔案。 我們首先安裝必要的軟體包並設定環境。 本教學涵蓋了從 Node.js 導入必要的模組，包括 PDF Generator、PDF Document 和 IronPDF Global Config，以及 FS 模組。 我們透過將簡單的"Hello World"HTML標籤轉換為PDF來示範如何從HTML字串建立PDF。 接下來，我們將探討如何將 PDF 的維基百科頁面 URL 轉換為 PDF 文檔，以展示 IronPDF 詳細擷取網頁的能力。 該教學還介紹如何透過從目錄中篩選 JPEG 檔案並使用 PDF Generator 的圖像轉 PDF 功能，將圖像轉換為單一 PDF 文件。 透過在終端機上運行程式碼，我們成功產生並查看了 PDF 文件，展示了 IronPDF 將各種來源轉換為 PDF 文件的功能。 這款強大的工具顯著增強了Node.js應用程式中產生PDF的可能性。 如需更多教學課程和探索 IronPDF 的功能，請訂閱 Iron Software 的頻道並註冊試用版，親身體驗該軟體。

# Bash code to install the IronPDF library in your Node.js project.npm install ironpdf

# Bash code to install the IronPDF library in your Node.js project.npm install ironpdf

// Import necessary modules from IronPDF and Node.jsconst { PDFGenerator, PDFDocument, IronPDFGlobalConfig } = require('ironpdf');const fs = require('fs'); // File system module for handling file operations// Initialize PDF Generatorconst pdfGenerator = new PDFGenerator();async function generatePdfFromHtml() {    // HTML content to be converted into a PDF    const htmlContent = '<h1>Hello World</h1>';    try {        // Convert HTML string to a PDF document        const pdfDoc = await pdfGenerator.fromHtml(htmlContent);        // Save the generated PDF document to a file        await pdfDoc.saveAs('hello_world.pdf');        console.log('PDF generated successfully from HTML string.');    } catch (error) {        console.error('Error generating PDF from HTML:', error);    }}async function generatePdfFromWebPage() {    // URL of the web page to be converted into a PDF    const url = 'https://en.wikipedia.org/wiki/PDF';    try {        // Convert web page URL to a PDF document        const pdfDoc = await pdfGenerator.fromUrl(url);        // Save the generated PDF document to a file        await pdfDoc.saveAs('wikipedia_pdf.pdf');        console.log('PDF generated successfully from webpage URL.');    } catch (error) {        console.error('Error generating PDF from webpage:', error);    }}async function generatePdfFromImages() {    // Directory containing images    const imageDir = './images';    const imageFiles = fs.readdirSync(imageDir);    try {        // Filter only JPEG files from the directory        const jpegImages = imageFiles.filter(file => file.endsWith('.jpeg'));        // Convert filtered images to a single PDF document        const pdfDoc = await pdfGenerator.fromImages(jpegImages.map(img => `${imageDir}/${img}`));        // Save the generated PDF document to a file        await pdfDoc.saveAs('images.pdf');        console.log('PDF generated successfully from images.');    } catch (error) {        console.error('Error generating PDF from images:', error);    }}// Execute the functions to generate PDFsgeneratePdfFromHtml();generatePdfFromWebPage();generatePdfFromImages();

// Import necessary modules from IronPDF and Node.jsconst { PDFGenerator, PDFDocument, IronPDFGlobalConfig } = require('ironpdf');const fs = require('fs'); // File system module for handling file operations// Initialize PDF Generatorconst pdfGenerator = new PDFGenerator();async function generatePdfFromHtml() {    // HTML content to be converted into a PDF    const htmlContent = '<h1>Hello World</h1>';    try {        // Convert HTML string to a PDF document        const pdfDoc = await pdfGenerator.fromHtml(htmlContent);        // Save the generated PDF document to a file        await pdfDoc.saveAs('hello_world.pdf');        console.log('PDF generated successfully from HTML string.');    } catch (error) {        console.error('Error generating PDF from HTML:', error);    }}async function generatePdfFromWebPage() {    // URL of the web page to be converted into a PDF    const url = 'https://en.wikipedia.org/wiki/PDF';    try {        // Convert web page URL to a PDF document        const pdfDoc = await pdfGenerator.fromUrl(url);        // Save the generated PDF document to a file        await pdfDoc.saveAs('wikipedia_pdf.pdf');        console.log('PDF generated successfully from webpage URL.');    } catch (error) {        console.error('Error generating PDF from webpage:', error);    }}async function generatePdfFromImages() {    // Directory containing images    const imageDir = './images';    const imageFiles = fs.readdirSync(imageDir);    try {        // Filter only JPEG files from the directory        const jpegImages = imageFiles.filter(file => file.endsWith('.jpeg'));        // Convert filtered images to a single PDF document        const pdfDoc = await pdfGenerator.fromImages(jpegImages.map(img => `${imageDir}/${img}`));        // Save the generated PDF document to a file        await pdfDoc.saveAs('images.pdf');        console.log('PDF generated successfully from images.');    } catch (error) {        console.error('Error generating PDF from images:', error);    }}// Execute the functions to generate PDFsgeneratePdfFromHtml();generatePdfFromWebPage();generatePdfFromImages();