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href="https://central.sonatype.com/artifact/com.ironsoftware/ironpdf/2023.4.4" target="_blank" data-modal-id="trial-license-after-download" title="點擊查看 Maven 網站上的 IronPDF"><i class="maven-icon-white maven-icon-white2--top-1"/> <span>免費 Maven 下載</span> <i class="navbar__item-icon fas fa-chevron-right fa-chevron-right--font-size-13"/> </a><a class="js-modal-open banner__link-white-text banner__link-white-text--start-free-trial" data-modal-id="trial-license" href="#trial-license"><i class="fas fa-key"/> Start Free Trial</a></div></div><div class="tutorial-examples tutorial-examples--blog col-md-7" id="code-examples"><div class="tutorial-examples__background-linear-gradient"/><div class="examples-box examples-box_margin-left examples-box--ironpdf-blog"><div class="hidden col left-bar"><h2 style="font-family: 'Gotham-Black';">範例</h2><div id="code-dropdown"><select class="selectpicker" data-style="btn-iron" data-width="100%"/></div><div class="nav-side-menu" style="height: 277px;"><i class="fa fa-bars fa-2x toggle-btn" data-toggle="collapse" data-target="#menu-content"/><div class="menu-list"><ul id="menu-content" class="menu-content collapse out" data-collapse-proxy="#code-dropdown select"><li data-code-content="sample-using-html-to-create-a-pdf" data-hash-url="true"><a href="javascript:void(0)">HTML轉PDF</a></li><li data-code-content="sample-file-to-pdf" data-hash-url="true"><a href="javascript:void(0)">HTML 檔案轉 PDF</a></li><li data-code-content="sample-converting-a-url-to-a-pdf" data-hash-url="true"><a href="javascript:void(0)">URL轉PDF</a></li><li data-code-content="sample-image-to-pdf" data-hash-url="true"><a href="javascript:void(0)">圖像轉PDF</a></li></ul></div></div></div><div class="col right-bar"><div class="code-content lander show" id="sample-using-html-to-create-a-pdf"><div class="code_window add-shadow"><div class="code_window_title"><span style="margin-right: 10px;"><i class="vs-icon2"/> </span><span class="filename" style="margin-left: 0; margin-right: 19px;">HTML轉PDF</span> <a class="btn-run fancybox" href="/zh-hant/img/code-examples/run-html-to-pdf.pdf" data-fancybox="" data-type="pdf" data-src="/img/code-examples/run-html-to-pdf.pdf"><i class="fa fa-play"/> 運行</a></div><div class="code_window_content"><div class="code-window__action-buttons-wrapper"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-cs"><code>import com.ironsoftware.ironpdf.*; import java.io.IOException; import java.nio.file.Paths; // Apply your license key License.setLicenseKey("YOUR-LICENSE-KEY"); // Set a log path Settings.setLogPath(Paths.get("C:/tmp/IronPdfEngine.log")); // Render the HTML as a PDF. Stored in myPdf as type PdfDocument; PdfDocument myPdf = PdfDocument.renderHtmlAsPdf("&lt;h1&gt; ~Hello World~ &lt;/h1&gt; Made with IronPDF!"); // Save the PdfDocument to a file myPdf.saveAs(Paths.get("html_saved.pdf"));</code></pre></div><div class="code_window_bottom"/></div></div><div class="code-content lander hide" id="sample-file-to-pdf"><div class="code_window add-shadow"><div class="code_window_title"><span style="margin-right: 10px;"><i class="vs-icon2"/> </span><span class="filename" style="margin-left: 0; margin-right: 19px;">HTML 檔案轉 PDF</span> <a class="btn-run fancybox" href="/zh-hant/img/code-examples/run-html-file-to-pdf.pdf" data-fancybox="" data-type="pdf" data-src="/img/code-examples/run-html-file-to-pdf.pdf"><i class="fa fa-play"/> 運行</a></div><div class="code_window_content"><div class="code-window__action-buttons-wrapper"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-cs"><code>import com.ironsoftware.ironpdf.*; import java.io.IOException; import java.nio.file.Paths; // Apply your license key License.setLicenseKey("YOUR-LICENSE-KEY"); // Set a log path Settings.setLogPath(Paths.get("C:/tmp/IronPdfEngine.log")); // Render the HTML as a PDF. Stored in myPdf as type PdfDocument; PdfDocument myPdf = PdfDocument.renderHtmlFileAsPdf("example.html"); // Save the PdfDocument to a file myPdf.saveAs(Paths.get("html_file_saved.pdf"));</code></pre></div><div class="code_window_bottom"/></div></div><div class="code-content lander hide" id="sample-converting-a-url-to-a-pdf"><div class="code_window add-shadow"><div class="code_window_title"><span style="margin-right: 10px;"><i class="vs-icon2"/> </span><span class="filename" style="margin-left: 0; margin-right: 19px;">URL轉PDF</span> <a class="btn-run fancybox" href="/zh-hant/img/code-examples/run-url-to-pdf.pdf" data-fancybox="" data-type="pdf" data-src="/img/code-examples/run-url-to-pdf.pdf"><i class="fa fa-play"/> 運行</a></div><div class="code_window_content"><div class="code-window__action-buttons-wrapper"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-cs"><code>import com.ironsoftware.ironpdf.*; import java.io.IOException; import java.nio.file.Paths; // Apply your license key License.setLicenseKey("YOUR-LICENSE-KEY"); // Set a log path Settings.setLogPath(Paths.get("C:/tmp/IronPdfEngine.log")); // Render the HTML as a PDF. Stored in myPdf as type PdfDocument; PdfDocument myPdf = PdfDocument.renderUrlAsPdf("https://ironpdf.com"); // Save the PdfDocument to a file myPdf.saveAs(Paths.get("url.pdf"));</code></pre></div><div class="code_window_bottom"/></div></div><div class="code-content lander hide" id="sample-image-to-pdf"><div class="code_window add-shadow"><div class="code_window_title"><span style="margin-right: 10px;"><i class="vs-icon2"/> </span><span class="filename" style="margin-left: 0; margin-right: 19px;">圖像轉PDF</span></div><div class="code_window_content"><div class="code-window__action-buttons-wrapper"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-cs"><code>import com.ironsoftware.ironpdf.*; import java.io.IOException; import java.nio.file.*; import java.util.ArrayList; import java.util.List; // Reference to the directory containing the images that we desire to convert Path imageDirectory = Paths.get("assets/images"); // Create an empty List to contain Paths to images from the directory. List&lt;Path&gt; imageFiles = new ArrayList&lt;&gt;(); // Use a DirectoryStream to populate the List with paths for each image in the directory // that we want to convert (this example uses a glob pattern to target only png and jpg images) try (DirectoryStream&lt;Path&gt; stream = Files.newDirectoryStream(imageDirectory, "*.{png,jpg}")) { for (Path entry : stream) { imageFiles.add(entry); // Render all targeted images as PDF content and save them together in one PDF document. PdfDocument.fromImage(imageFiles).saveAs(Paths.get("assets/composite.pdf")); } catch (IOException exception) { throw new RuntimeException(String.format("Error converting images to PDF from directory: %s: %s", imageDirectory, exception.getMessage()), exception); }</code></pre></div><div class="code_window_bottom"/></div></div></div></div></div><img loading="lazy" class="add-shadow banner__product-home-top-image banner__product-home-top-image--right-ironpdf" src="/img/svgs/illustration2.svg" alt="IronPDF"/></div></div></header><main class="page_type_product page_blog_post"><section class="section_header"><div class="container-fluid"><ol class="breadcrumb"><li class="breadcrumb-item"><a href="/zh-hant/java/">IronPDF for Java</a></li><li class="breadcrumb-item"><a href="/zh-hant/java/blog/">部落格</a></li><li class="breadcrumb-item"><a href="/zh-hant/java/blog/compare-to-other-components/">產品比較</a></li><li class="breadcrumb-item active">iTextPDF itext7 Java</li></ol></div></section><div class="container-fluid"><div class="row g-5"><div class="col-12 col-md-8"><div class="blog_category_name">產品比較</div><h1>IronPDF for Java 和 iTextPDF itext7 for Java 的比較</h1><div class="d-flex my-4 gap-3 align-items-center"><div class="blog_date flex-grow-1">發佈 2023年1月15日</div><div class="d-flex blog_social_icons align-items-center"><div class="text">分享:</div><div class="icon"><a href="https://www.facebook.com/sharer/sharer.php?u=https://ironpdf.com/zh-hant/java/blog/compare-to-other-components/itextpdf-itext7-java-alternatives/" title="分享到臉書" target="_blank"><i class="fa-brands fa-facebook"/></a></div><div class="icon"><a href="https://twitter.com/intent/tweet?url=https://ironpdf.com/zh-hant/java/blog/compare-to-other-components/itextpdf-itext7-java-alternatives/" title="分享到 Twitter (X 平台)" target="_blank"><i class="fa-brands fa-x-twitter"/></a></div><div class="icon"><a href="https://www.linkedin.com/sharing/share-offsite/?url=https://ironpdf.com/zh-hant/java/blog/compare-to-other-components/itextpdf-itext7-java-alternatives/" title="分享到LinkedIn" target="_blank"><i class="fa-brands fa-linkedin"/></a></div><div class="icon"><a href="https://ironpdf.com/zh-hant/java/blog/compare-to-other-components/itextpdf-itext7-java-alternatives/" title="複製連結以分享" target="_blank" class="js-copyPageURLToClipboard" data-text-after-clicked="&lt;i class='fa-solid fa-check'&gt;&lt;/i&gt;"><i class="fa-regular fa-copy"/></a></div></div></div><div class="blog_content" data-bs-spy="scroll" data-bs-target="#blog_right_scrollspy_menu" data-bs-root-margin="0px 0px -75%" data-bs-smooth-scroll="true" tabindex="0"><p>今天，開發人員可以受益於不斷改進的技術所帶來的更佳解決方案。</p><p>軟體開發過程的未來在於自動化。長期以來，PDF 文件給開發人員帶來了困難。在處理 PDF 文件時 (即，製作內容並將其他格式的內容轉換為 PDF)有許多需要考慮的因素。隨著許多用來幫助讀取、寫入、創建甚至從多種格式轉換PDF的庫的開發，這些需求現在已經得到滿足。</p><p>本文將比較兩個對Java開發人員編輯、打印和創建PDF文件最受好評的PDF庫：</p><ul><li><a href="/zh-hant/java/" target="_blank" rel="nofollow noopener noreferrer">IronPDF</a> 圖書館：一個基於Java的PDF圖書館，專注於從HTML生成PDF。</li><li>ITextPDF圖書館：一個以Java為核心、開源的圖書館，專注於使用可編程API生成PDF。</li></ul><p>在我們轉向PDF轉換和處理的性能消耗之前，將先檢查這兩個圖書館的功能，以確定哪個圖書館最適合您的應用程序。此外，將記錄每個圖書館的時長以供後續研究。</p><h2 id="anchor-36-49-ironpdf-java">安裝 IronPDF Java</h2><p>安裝 <a href="/zh-hant/java/" target="_blank" rel="nofollow noopener noreferrer">IronPDF for Java</a>, 您只需將它聲明為一個依賴項。要將 IronPDF 定義為依賴項，請將以下內容添加到您的 pom.xml 中。</p><div class="copy-nuget-section md-body" data-toggle="tooltip" data-placement="top" title="點擊複製" style="height: initial;" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板"><pre class="install-script">&lt;dependency&gt;<br/> &lt;groupId&gt;com.ironsoftware&lt;/groupId&gt;<br/> &lt;artifactId&gt;com.ironsoftware&lt;/artifactId&gt;<br/> &lt;version&gt;2024.9.1&lt;/version&gt;<br/>&lt;/dependency&gt;</pre></div><p>注意：您可以手動下載 .jar 檔案：</p><ol><li><p>前往 <a href="/zh-hant/static-assets/ironpdf-java/packages/ironpdf-2024.9.1-fat-jar.jar">Maven倉庫</a>2. 提取zip檔案的內容。</p></li><li><p>建立一個資料夾並複製zip資料夾的內容。</p></li><li><p>打開Eclipse IDE。</p></li><li><p>建立一個新的Java專案。</p></li><li><p>將IronPDF .jar檔案添加到類路徑中。</p></li><li>完成專案創建嚮導。就是這樣。!</li></ol><h2 id="anchor-ironpdf-36-49">IronPDF 功能</h2><p>開發人員可以利用強大的IronPDF PDF庫快速生成、讀取和操作PDF。IronPDF在其核心使用chrome引擎，並提供大量實用且強大的功能，包括能夠將HTML5、JavaScript、CSS和圖像文件轉換為PDF。IronPDF還可以添加獨特的頁眉和頁腳，並精確地創建與網頁瀏覽器中顯示的相同的PDF文件。IronPDF支持各種網頁格式，包括HTML、ASPX、Razor View和MVC。IronPDF的主要特徵如下：</p><ul><li>使用Java程序輕鬆創建、閱讀和編輯PDF，</li><li>從任何網站URL鏈接創建PDF，URL鏈接具有用戶代理、代理伺服器、Cookie、HTTP標頭和表單變量設置，以支持使用HTML登錄表單進行登錄，</li><li>從已有的PDF出版物中刪除照片，</li><li>向PDF添加文本、照片、書籤、水印和其他元素，</li><li>合併和分割多個PDF文檔的頁面，</li><li>將包括CSS文件在內的媒體類型文件轉換為文檔。</li></ul><h2 id="anchor-36-49-itextpdf-java">安裝 ITextPDF Java</h2><p>ITextPDF 可以免費下載於 <a href="https://itextpdf.com/" target="_blank" rel="nofollow noopener noreferrer"/><a href="https://itextpdf.com/" target="_blank" rel="nofollow noopener noreferrer">https://itextpdf.com/</a>. 該庫在 AGPL 軟體許可模式下開源。</p><p>要將 iText 庫添加到您的應用程式中，請將以下 Maven 儲存庫包含在我們的 <code>pom.xml</code> 文件中。</p><pre class="naked-code" style=";"><code class="language-xml">&lt;dependency&gt; &lt;groupId&gt;com.itextpdf&lt;/groupId&gt; &lt;artifactId&gt;itextpdf&lt;/artifactId&gt; &lt;version&gt;5.5.13.2&lt;/version&gt; &lt;/dependency&gt;</code></pre><div class="code-content code-content-inner"><div class="code_window"><div class="code_window_content"><div class="code-window__action-buttons-wrapper code-window__action-buttons-wrapper--content-page"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-xml"><code>&lt;dependency&gt; &lt;groupId&gt;com.itextpdf&lt;/groupId&gt; &lt;artifactId&gt;itextpdf&lt;/artifactId&gt; &lt;version&gt;5.5.13.2&lt;/version&gt; &lt;/dependency&gt;</code></pre></div><div class="code_window_bottom"><span class="pull-right"><span class="ls-span" style="font-weight: 600">XML</span></span></div></div></div><p>直接下載iTextPDF的.jar檔案並直接下載slf4j.jar檔案。要使用這些庫，請將iTextPDF的.jar檔案添加到系統的類路徑中。</p><h2 id="anchor-itext-library-features">IText Library Features</h2><ul><li>從 HTML、XML 和圖像創建 PDF (png、jpg 等)</li><li>在 PDF 文件中添加書籤、頁碼和標記</li><li>將 PDF 文件拆分為多個 PDF 或將多個 PDF 合併成一個 PDF</li><li>以程式方式編輯 PDF 表單</li><li>向 PDF 添加文字、圖片和幾何圖形</li></ul><h2 id="anchor-36-49itextpdf-java36-49html36-49pdf">使用iTextPDF Java將HTML字串轉換為PDF</h2><p>在iText for Java中，<code>HTMLConverter</code> 是用來將HTML轉換為PDF的主要類別。</p><p><code>HTMLConverter</code> 有三個主要方法：</p><ul><li><code>convertToDocument</code>，返回一個<code>Document</code>對象</li><li><code>convertToElements</code>，返回一個<code>IElement</code>對象列表</li><li><code>convertToPdf</code> 處理將HTML內容轉換為PDF。此方法接受HTML輸入作為<code>String</code>、<code>File</code>或<code>InputStream</code>，並返回<code>File</code>、<code>OutputStream</code>或<code>Document</code>對象。</li></ul><pre class="naked-code" style=";"><code class="language-java">package com.hmkcode; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import com.itextpdf.html2pdf.HtmlConverter; public class App public static final String HTML = "&lt;h1&gt;Hello&lt;/h1&gt;" + "&lt;p&gt;This was created using iText&lt;/p&gt;" + "&lt;a href='hmkcode.com'&gt;hmkcode.com&lt;/a&gt;"; public static void main( String [] args ) throws FileNotFoundException, IOException HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf")); System.out.println( "PDF Created!" ); }</code></pre><div class="code-content code-content-inner"><div class="code_window"><div class="code_window_content"><div class="code-window__action-buttons-wrapper code-window__action-buttons-wrapper--content-page"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-java"><code>package com.hmkcode; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import com.itextpdf.html2pdf.HtmlConverter; public class App public static final String HTML = "&lt;h1&gt;Hello&lt;/h1&gt;" + "&lt;p&gt;This was created using iText&lt;/p&gt;" + "&lt;a href='hmkcode.com'&gt;hmkcode.com&lt;/a&gt;"; public static void main( String [] args ) throws FileNotFoundException, IOException HtmlConverter.convertToPdf(HTML, new FileOutputStream("string-to-pdf.pdf")); System.out.println( "PDF Created!" ); }</code></pre></div><div class="code_window_bottom"><span class="pull-right"><span class="ls-span" style="font-weight: 600">JAVA</span></span></div></div></div><div class="content-img-align-center"><div class="center-image-wrapper"><a rel="nofollow noopener noreferrer" href="/zh-hant/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-1.webp" target="_blank"><img src="/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-1.webp" alt="IronPDF For Java 與 iTextPDF itext7 for Java 的比較 - 圖 1" class="img-responsive add-shadow img-responsive img-popup" loading="lazy" width="354" height="196"/></a></div></div><h2 id="anchor-36-49-ironpdf-java-36-49-html-36-49-pdf">使用 IronPDF Java 將 HTML 字符串轉換為 PDF</h2><p>來自 IronPDF 的 <code>PdfDocument</code> 類提供多個靜態方法，允許 Java 開發人員從各種來源生成 HTML 文本。其中一種方法是 <code>PdfDocument.renderHtmlAsPdf</code> 方法，該方法將 HTML 標記字符串轉換為 PDF 文檔。</p><pre class="naked-code" style=";"><code class="language-java"> License.setLicenseKey("YOUR-LICENSE-KEY"); Settings.setLogPath(Paths.get("C:/tmp/IronPdfEngine.log")); PdfDocument myPdf = PdfDocument.renderHtmlAsPdf("&lt;h1&gt; ~Hello World~ &lt;/h1&gt; Made with IronPDF!"); myPdf.saveAs(Paths.get("html_saved.pdf"));</code></pre><div class="code-content code-content-inner"><div class="code_window"><div class="code_window_content"><div class="code-window__action-buttons-wrapper code-window__action-buttons-wrapper--content-page"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-java"><code> License.setLicenseKey("YOUR-LICENSE-KEY"); Settings.setLogPath(Paths.get("C:/tmp/IronPdfEngine.log")); PdfDocument myPdf = PdfDocument.renderHtmlAsPdf("&lt;h1&gt; ~Hello World~ &lt;/h1&gt; Made with IronPDF!"); myPdf.saveAs(Paths.get("html_saved.pdf"));</code></pre></div><div class="code_window_bottom"><span class="pull-right"><span class="ls-span" style="font-weight: 600">JAVA</span></span></div></div></div><h2 id="anchor-36-49-itextpdf-java-36-49-html-36-49-pdf">使用 ITextPDF Java 將 HTML 文件轉換為 PDF</h2><p><code>convertToPdf</code> 方法可用於將任何 HTML 文件轉換為 PDF。</p><p>圖片和 CSS 文件可以包含在 HTML 文件中。但它們必須在 HTML 文件的相同位置。我們可以使用 <code>ConverterProperties</code> 類來設置引用的 CSS 和圖片的基礎路徑。當 HTML 文件資產位於不同目錄時，這是非常有用的。</p><p>考慮包含以下標記的 index.html。</p><pre class="naked-code"><code class="language-html">&lt;html&gt; &lt;title&gt;HTML to PDF&lt;/title&gt; &lt;link href="style.css" rel="stylesheet" type="text/css" /&gt; &lt;/head&gt; &lt;h1&gt;HTML to PDF&lt;/h1&gt; &lt;span class="itext"&gt;itext&lt;/span&gt; 7.1.9 &lt;span class="description"&gt; converting HTML to PDF&lt;/span&gt; &lt;table&gt; &lt;th class="label"&gt;Title&lt;/th&gt; &lt;td&gt;iText - Java HTML to PDF&lt;/td&gt; &lt;th&gt;URL&lt;/th&gt; &lt;td&gt;http://hmkcode.com/itext-html-to-pdf-using-java&lt;/td&gt; &lt;/table&gt; &lt;/body&gt; &lt;/html&gt;</code></pre><div class="code-content code-content-inner"><div class="code_window"><div class="code_window_content"><div class="code-window__action-buttons-wrapper code-window__action-buttons-wrapper--content-page"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-html"><code>&lt;html&gt; &lt;title&gt;HTML to PDF&lt;/title&gt; &lt;link href="style.css" rel="stylesheet" type="text/css" /&gt; &lt;/head&gt; &lt;h1&gt;HTML to PDF&lt;/h1&gt; &lt;span class="itext"&gt;itext&lt;/span&gt; 7.1.9 &lt;span class="description"&gt; converting HTML to PDF&lt;/span&gt; &lt;table&gt; &lt;th class="label"&gt;Title&lt;/th&gt; &lt;td&gt;iText - Java HTML to PDF&lt;/td&gt; &lt;th&gt;URL&lt;/th&gt; &lt;td&gt;http://hmkcode.com/itext-html-to-pdf-using-java&lt;/td&gt; &lt;/table&gt; &lt;/body&gt; &lt;/html&gt;</code></pre></div><div class="code_window_bottom"><span class="pull-right"><span class="ls-span" style="font-weight: 600">HTML</span></span></div></div></div><p>以下源代碼將 index.html 文件轉換為 PDF：</p><pre class="naked-code" style=";"><code class="language-java">package com.hmkcode; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import com.itextpdf.html2pdf.HtmlConverter; public class App public static void main( String [] args ) throws FileNotFoundException, IOException HtmlConverter.convertToPdf(new FileInputStream("index.html"), new FileOutputStream("index-to-pdf.pdf")); System.out.println( "PDF Created!" ); }</code></pre><div class="code-content code-content-inner"><div class="code_window"><div class="code_window_content"><div class="code-window__action-buttons-wrapper code-window__action-buttons-wrapper--content-page"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-java"><code>package com.hmkcode; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import com.itextpdf.html2pdf.HtmlConverter; public class App public static void main( String [] args ) throws FileNotFoundException, IOException HtmlConverter.convertToPdf(new FileInputStream("index.html"), new FileOutputStream("index-to-pdf.pdf")); System.out.println( "PDF Created!" ); }</code></pre></div><div class="code_window_bottom"><span class="pull-right"><span class="ls-span" style="font-weight: 600">JAVA</span></span></div></div></div><div class="content-img-align-center"><div class="center-image-wrapper"><a rel="nofollow noopener noreferrer" href="/zh-hant/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-2.webp" target="_blank"><img src="/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-2.webp" alt="IronPDF For Java 和 iTextPDF itext7 for Java 的比較 - 圖2" class="img-responsive add-shadow img-responsive img-popup" loading="lazy" width="502" height="342"/></a></div></div><h2 id="anchor-36-49-ironpdf-for-java-36-49-html-36-49-pdf">使用 IronPDF for Java 將 HTML 文件轉換為 PDF</h2><p>IronPDF 的 <code>PdfDocument.renderHtmlFileAsPdf</code> 方法可以將位於電腦上或網絡文件路徑的 HTML 文件轉換為 PDF。</p><pre class="naked-code" style=";"><code class="language-java">PdfDocument myPdf = PdfDocument.renderHtmlFileAsPdf("example.html"); myPdf.saveAs(Paths.get("html_file_saved.pdf"));</code></pre><div class="code-content code-content-inner"><div class="code_window"><div class="code_window_content"><div class="code-window__action-buttons-wrapper code-window__action-buttons-wrapper--content-page"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-java"><code>PdfDocument myPdf = PdfDocument.renderHtmlFileAsPdf("example.html"); myPdf.saveAs(Paths.get("html_file_saved.pdf"));</code></pre></div><div class="code_window_bottom"><span class="pull-right"><span class="ls-span" style="font-weight: 600">JAVA</span></span></div></div></div><h2 id="anchor-36-49-ironpdf-java-36-49-pdf-36-49">使用 IronPDF Java 將圖片添加到 PDF 文件</h2><p>您可以使用 IronPDF 的 <code>PdfDocument.fromImage</code> 方法將一組圖片渲染成一個 PDF 文件。下面的範例在不同的文件系統路徑上使用此方法來處理一個簡短的圖片列表。</p><pre class="naked-code" style=";"><code class="language-java">// Create an ArrayList containing the list of images that you want to combine // into ONE PDF document Path imageA = Paths.get("directoryA/1.png"); Path imageB = Paths.get("directoryB/2.png"); Path imageC = Paths.get("3.png"); List&lt;Path&gt; imageFiles = new ArrayList&lt;&gt;(); imageFiles.add(imageA); imageFiles.add(imageB); imageFiles.add(imageC); // Convert the three images into a PDF and save them. PdfDocument.fromImage(imageFiles).saveAs(Paths.get("assets/composite.pdf"));</code></pre><div class="code-content code-content-inner"><div class="code_window"><div class="code_window_content"><div class="code-window__action-buttons-wrapper code-window__action-buttons-wrapper--content-page"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-java"><code>// Create an ArrayList containing the list of images that you want to combine // into ONE PDF document Path imageA = Paths.get("directoryA/1.png"); Path imageB = Paths.get("directoryB/2.png"); Path imageC = Paths.get("3.png"); List&lt;Path&gt; imageFiles = new ArrayList&lt;&gt;(); imageFiles.add(imageA); imageFiles.add(imageB); imageFiles.add(imageC); // Convert the three images into a PDF and save them. PdfDocument.fromImage(imageFiles).saveAs(Paths.get("assets/composite.pdf"));</code></pre></div><div class="code_window_bottom"><span class="pull-right"><span class="ls-span" style="font-weight: 600">JAVA</span></span></div></div></div><h2 id="anchor-36-49-itextpdf-java-36-49-pdf-36-49">使用 ITextPDF Java 向 PDF 添加图片</h2><p>以下完整的代码示例使用 iText 将当前工作目录中的两个图片转换为一个 PDF 文件。</p><pre class="naked-code" style=";"><code class="language-java">import java.io.*; // importing itext library packages import com.itextpdf.io.image.*; import com.itextpdf.kernel.pdf.*; import com.itextpdf.layout.Document; import com.itextpdf.layout.element.Image; public class InsertImagePDF { public static void main(String [] args) throws IOException { String currDir = System.getProperty("user.dir"); // Getting path of current working directory // to create the pdf file in the same directory of // the running java program String pdfPath = currDir + "/InsertImage.pdf"; // Creating path for the new pdf file PdfWriter writer = new PdfWriter(pdfPath); // Creating PdfWriter object to write the PDF file to // the path PdfDocument pdfDoc = new PdfDocument(writer); // Creating a Document object Document doc = new Document(pdfDoc); // Creating imagedata from image on disk(from given // path) using ImageData object ImageData imageDataA = ImageDataFactory.create( currDir + "/imageA.jpg"); Image imgA = new Image(imageDataA); ImageData imageDataB = ImageDataFactory.create( currDir + "/imageB.jpg"); Image imgB = new Image(imageDataB); // Creating Image object from the imagedata doc.add(imgA); doc.add(imgB); // Adding Image to the empty document doc.close(); // Close the document System.out.println("Image added successfully and PDF file created!"); }</code></pre><div class="code-content code-content-inner"><div class="code_window"><div class="code_window_content"><div class="code-window__action-buttons-wrapper code-window__action-buttons-wrapper--content-page"><button title="點擊複製" class="code-window__action-button code-window__action-button--copy copy-clipboard" data-copy-text="點擊複製" data-copied-text="已複製到剪貼板" data-clipboard-id="code-explorer" data-placement="bottom"><i class="fa-kit fa-copy-example"/></button> <button title="全螢幕模式" class="code-window__action-button code-window__action-button--full-screen js-full-screen-code-example-modal"><i class="fas fa-expand"/></button> <button title="退出全螢幕" class="code-window__action-button code-window__action-button--exit-full-screen js-exit-full-screen-code-example-modal"><i class="fas fa-compress"/></button></div><pre class="prettyprint linenums lang-java"><code>import java.io.*; // importing itext library packages import com.itextpdf.io.image.*; import com.itextpdf.kernel.pdf.*; import com.itextpdf.layout.Document; import com.itextpdf.layout.element.Image; public class InsertImagePDF { public static void main(String [] args) throws IOException { String currDir = System.getProperty("user.dir"); // Getting path of current working directory // to create the pdf file in the same directory of // the running java program String pdfPath = currDir + "/InsertImage.pdf"; // Creating path for the new pdf file PdfWriter writer = new PdfWriter(pdfPath); // Creating PdfWriter object to write the PDF file to // the path PdfDocument pdfDoc = new PdfDocument(writer); // Creating a Document object Document doc = new Document(pdfDoc); // Creating imagedata from image on disk(from given // path) using ImageData object ImageData imageDataA = ImageDataFactory.create( currDir + "/imageA.jpg"); Image imgA = new Image(imageDataA); ImageData imageDataB = ImageDataFactory.create( currDir + "/imageB.jpg"); Image imgB = new Image(imageDataB); // Creating Image object from the imagedata doc.add(imgA); doc.add(imgB); // Adding Image to the empty document doc.close(); // Close the document System.out.println("Image added successfully and PDF file created!"); }</code></pre></div><div class="code_window_bottom"><span class="pull-right"><span class="ls-span" style="font-weight: 600">JAVA</span></span></div></div></div><div class="content-img-align-center"><div class="center-image-wrapper"><a rel="nofollow noopener noreferrer" href="/zh-hant/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-3.webp" target="_blank"><img src="/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-3.webp" alt="IronPDF For Java與iTextPDF itext7 for Java之間的比較 - 圖3" class="img-responsive add-shadow img-responsive img-popup" loading="lazy" width="917" height="688"/></a></div></div><h2 id="anchor-36-49">授權</h2><p>iTextSharp 是開源的並且是根據 AGLP 授權的。</p><div class="content-img-align-center"><div class="center-image-wrapper"><a rel="nofollow noopener noreferrer" href="/zh-hant/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-4.webp" target="_blank"><img src="/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-4.webp" alt="IronPDF For Java 與 iTextPDF itext7 for Java 的比較 - 圖 4" class="img-responsive add-shadow img-responsive img-popup" loading="lazy" width="1257" height="575"/></a></div></div><p>這可確保任何使用包含iTextSharp的應用程式的人，即使他們透過企業網絡或互聯網使用，也有權獲得應用程式完整的源代碼副本。</p><div class="content-img-align-center"><div class="center-image-wrapper"><a rel="nofollow noopener noreferrer" href="/zh-hant/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-5.webp" target="_blank"><img src="/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-5.webp" alt="IronPDF For Java 與 iTextPDF itext7 for Java 之比較 - 圖 5" class="img-responsive add-shadow img-responsive img-popup" loading="lazy" width="769" height="365"/></a></div></div><p>如有意將此軟體用於商業應用，請直接聯繫iText洽詢授權的價格。</p><div class="content-img-align-center"><div class="center-image-wrapper"><a rel="nofollow noopener noreferrer" href="/zh-hant/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-6.webp" target="_blank"><img src="/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-6.webp" alt="IronPDF For Java 與 iTextPDF itext7 for Java 的比較 - 圖6" class="img-responsive add-shadow img-responsive img-popup" loading="lazy" width="652" height="464"/></a></div></div><p>IronPDF 可免費用於開發，並且可以隨時授權用於商業部署。 <a href="/zh-hant/licensing/" target="_blank" rel="nofollow noopener noreferrer">授權可用</a> 適用於單個專案的使用、個人開發者、代理商和全球企業，以及 SaaS 和 OEM 再分發。所有授權都包括30天退款保證、一年的產品支持和更新、有效的開發/測試/生產環境授權，並且還包括永久授權。 (一次性購買).</p><p>價格方面，Lite 套件的起價為 $749。</p><ul><li>開發人員可以無限制地使用該庫進行開發。就一般授權而言，費率非常具成本效益</li><li>免費的一年無限制支援 <a class="js-modal-open" href="#trial-license" data-modal-id="#trial-license" target="_blank" rel="nofollow noopener noreferrer">免費試用</a> 也可供授權使用</li><li>所有授權均包括30天退款保證</li><li>授權在所有環境中均有效 (開發、測試、生產等)</li><li>授權包含一年的無條件支援</li><li>IronPDF 授權僅需一次性購買</li></ul><div class="content-img-align-center"><div class="center-image-wrapper"><a rel="nofollow noopener noreferrer" href="/zh-hant/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-7.webp" target="_blank"><img src="/static-assets/ironpdf-java/blog/itextpdf-itext7-java-alternatives/itextpdf-itext7-java-alternatives-7.webp" alt="IronPDF和iTextPDF itext7之間的比較 - 圖7" class="img-responsive add-shadow img-responsive img-popup" loading="lazy" width="1218" height="498"/></a></div></div><h2 id="anchor-ironpdf-vs-itext">IronPDF vs iText</h2><p>iText 和 IronPDF 之間有幾個顯著的區別。</p><p>iText 的 API 是圍繞程序模型構建的。在這種模型下操作 PDF 的屬性和內容更加低層次且細緻。雖然這給程式設計師帶來了更多的控制和靈活性，但也需要撰寫更多的代碼來實現用例。</p><p>IronPDF 的 API 是為了最佳化開發人員的生產力而設計的。IronPDF 簡化了 PDF 的編輯、操作、創建和其他複雜的任務，開發人員僅需以幾行代碼即可完成。</p><h2 id="anchor-36-49">結論</h2><p>Iron Software的所有客戶都可以通過兩次點擊購買整個套件。您目前可以購買所有五個庫。 <a href="https://ironsoftware.com/zh-hant/suite/" target="__blank">Iron Software 套件</a>以及每個函式庫的持續支援，費用僅為整組中兩個函式庫的價格。</p></div><div class="blog_end_line"/><div class="blog_bottom_nav"><div class="blog_bottom_nav row row-cols-2"><div class="text-start text-truncate"><a href="/zh-hant/java/blog/compare-to-other-components/apache-pdfbox-html-to-pdf-java/" class="link">&lt; 上一頁</a><br/>IronPDF for Java 和 Apache PDFBox 的比較</div><div class="text-end text-truncate"><a href="/zh-hant/java/blog/compare-to-other-components/aspose-pdf-java-alternatives/" class="link">下一個 &gt;</a><br/>IronPDF For Java 與 Aspose.PDF For Java 比較</div></div></div><div class="feedback_form"><div class="article-feedabck__wrapper" id="anchor-improve-the-article" data-tf-widget="zrOqRbmz" data-tf-iframe-props="title=Article feedback" data-tf-medium="snippet" data-tf-hidden="source=https://ironpdf.com/zh-hant/java/blog/compare-to-other-components/itextpdf-itext7-java-alternatives" data-tf-disable-auto-focus=""/></div></div><div class="col-12 col-md-4 right_column"><div class="h-100"><div class="sticky-md-top z-0 specific_sticky_height"><div class="block_on_this_page"><div id="blog_right_scrollspy_menu" class="menu_wrapper"><h2 class="mb-3">本頁內容</h2><ul class="blog_post_on_this_page"><li><a href="#anchor-36-49-ironpdf-java" class=""><span>安裝 IronPDF Java</span></a></li><li><a href="#anchor-ironpdf-36-49" class=""><span>IronPDF 功能</span></a></li><li><a href="#anchor-36-49-itextpdf-java" class=""><span>安裝 ITextPDF Java</span></a></li><li><a href="#anchor-itext-library-features" class=""><span>IText Library Features</span></a></li><li><a href="#anchor-36-49itextpdf-java36-49html36-49pdf" class=""><span>使用iTextPDF Java將HTML字串轉換為PDF</span></a></li><li><a href="#anchor-36-49-ironpdf-java-36-49-html-36-49-pdf" class=""><span>使用 IronPDF Java 將 HTML 字符串轉換為 PDF</span></a></li><li><a href="#anchor-36-49-itextpdf-java-36-49-html-36-49-pdf" class=""><span>使用 ITextPDF Java 將 HTML 文件轉換為 PDF</span></a></li><li><a href="#anchor-36-49-ironpdf-for-java-36-49-html-36-49-pdf" class=""><span>使用 IronPDF for Java 將 HTML 文件轉換為 PDF</span></a></li><li><a href="#anchor-36-49-ironpdf-java-36-49-pdf-36-49" class=""><span>使用 IronPDF Java 將圖片添加到 PDF 文件</span></a></li><li><a href="#anchor-36-49-itextpdf-java-36-49-pdf-36-49" class=""><span>使用 ITextPDF Java 向 PDF 添加图片</span></a></li><li><a href="#anchor-36-49" class=""><span>授權</span></a></li><li><a href="#anchor-ironpdf-vs-itext" class=""><span>IronPDF vs iText</span></a></li><li><a href="#anchor-36-49" class=""><span>結論</span></a></li></ul></div></div><div><div><div class="maven-sidebar__main-wrapper install-component-sidebar-wrapper"><div class="maven-sidebar__top-wrapper"><div><a href="#download-modal" target="_blank" data-modal-id="download-modal" class="js-modal-open"><img loading="lazy" class="maven-sidebar__logo" src="/img/svgs/apache_maven.svg" alt="使用 Maven 安裝"/></a></div><div><p class="maven-sidebar__title"><a href="#download-modal" target="_blank" data-modal-id="download-modal" class="js-modal-open maven-sidebar__title-link">使用 Maven 安裝</a></p><p class="maven-sidebar__version-number">版本：2024.9.1</p></div></div><div class="maven-sidebar__copy-wrapper js-maven-sidebar__copy-code" data-placement="bottom" data-original-title="Click to copy"><pre class="maven-sidebar__copy-code">