<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependency>
    <groupId>e-iceblue</groupId>
    <artifactId>spire.presentation</artifactId>
    <version>10.10.2</version>
</dependency>

implementation 'e-iceblue:spire.presentation:10.10.2@jar'

import com.spire.presentation.Presentation;
import com.spire.presentation.FileFormat;

public class PptToPdfSingle {
    public static void main(String[] args) {
        // 1. 定義PPT輸入路徑與PDF輸出路徑
        String pptInputPath = "D:\Documents\示例演示文稿.pptx";
        String pdfOutputPath = "D:\Documents\示例演示文稿_轉(zhuǎn)換后.pdf";

        Presentation presentation = null;
        try {
            // 2. 創(chuàng)建Presentation對象，加載PPT文件
            presentation = new Presentation();
            presentation.loadFromFile(pptInputPath);

            // 3. 調(diào)用saveToFile方法轉(zhuǎn)換為PDF，指定輸出格式為FileFormat.PDF
            presentation.saveToFile(pdfOutputPath, FileFormat.PDF);

            System.out.println("PPT轉(zhuǎn)PDF成功！輸出路徑：" + pdfOutputPath);
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("PPT轉(zhuǎn)PDF失?。? + e.getMessage());
        } finally {
            // 4. 關(guān)閉Presentation對象，釋放內(nèi)存資源
            if (presentation != null) {
                presentation.dispose();
            }
        }
    }
}

import com.spire.presentation.Presentation;
import com.spire.presentation.FileFormat;
import java.io.File;

public class PptToPdfBatch {
    public static void main(String[] args) {
        // 1. 定義PPT文件夾路徑與PDF輸出文件夾路徑
        String pptFolderPath = "D:\Documents\PPT文件夾";
        String pdfOutputFolder = "D:\Documents\PDF輸出文件夾";

        // 2. 檢查輸出文件夾，不存在則創(chuàng)建
        File outputFolder = new File(pdfOutputFolder);
        if (!outputFolder.exists()) {
            outputFolder.mkdirs();
        }

        // 3. 遍歷PPT文件夾，獲取所有.ppt/.pptx文件
        File pptFolder = new File(pptFolderPath);
        File[] pptFiles = pptFolder.listFiles((dir, name) -> {
            // 過濾后綴為.ppt或.pptx的文件（不區(qū)分大小寫）
            String lowercaseName = name.toLowerCase();
            return lowercaseName.endsWith(".ppt") || lowercaseName.endsWith(".pptx");
        });

        // 4. 批量轉(zhuǎn)換每個(gè)PPT文件
        if (pptFiles != null && pptFiles.length > 0) {
            for (File pptFile : pptFiles) {
                convertSinglePptToPdf(pptFile.getAbsolutePath(), pdfOutputFolder);
            }
            System.out.println("批量轉(zhuǎn)換完成！所有PDF已保存至：" + pdfOutputFolder);
        } else {
            System.out.println("PPT文件夾中未找到.ppt/.pptx文件！");
        }
    }

    /**
     * 單個(gè)PPT轉(zhuǎn)換為PDF的工具方法
     * @param pptInputPath PPT文件絕對路徑
     * @param pdfOutputFolder PDF輸出文件夾路徑
     */
    private static void convertSinglePptToPdf(String pptInputPath, String pdfOutputFolder) {
        Presentation presentation = null;
        try {
            // 加載PPT文件
            presentation = new Presentation();
            presentation.loadFromFile(pptInputPath);

            // 獲取PPT文件名（不含后綴），作為PDF文件名
            String pptFileName = new File(pptInputPath).getName();
            String pdfFileName = pptFileName.substring(0, pptFileName.lastIndexOf(".")) + ".pdf";
            String pdfOutputPath = pdfOutputFolder + File.separator + pdfFileName;

            // 轉(zhuǎn)換為PDF
            presentation.saveToFile(pdfOutputPath, FileFormat.PDF);
            System.out.println("成功轉(zhuǎn)換：" + pptFileName + " → " + pdfFileName);
        } catch (Exception e) {
            System.out.println("轉(zhuǎn)換失?。? + new File(pptInputPath).getName() + "，原因：" + e.getMessage());
        } finally {
            if (presentation != null) {
                presentation.dispose();
            }
        }
    }
}