JavaPDF转图片

以下是使用Java将PDF转换为图片的示例代码：

import org.apache.pdfbox.pdmodel.PDDocument;import org.apache.pdfbox.rendering.PDFRenderer;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;

public class PDFToImageConverter {
    public static void main(String[] args) {
        String pdfFilePath = "path/to/pdf/file.pdf";
        String outputFolderPath = "path/to/output/folder/";

        try {
            PDDocument document = PDDocument.load(new File(pdfFilePath));
            PDFRenderer pdfRenderer = new PDFRenderer(document);

            for (int page = 0; page < document.getNumberOfPages(); ++page) {
                BufferedImage bim = pdfRenderer.renderImageWithDPI(page,300); // 设置dpi为300，可以根据需要调整
                String outputFilePath = outputFolderPath + "page_" + (page + 1) + ".png";
                ImageIO.write(bim, "png", new File(outputFilePath));
            }

            document.close();
            System.out.println("PDF转图片成功！");
        } catch (Exception e) {
            System.out.println("PDF转图片失败：" + e.getMessage());
        }
    }
}

请确保你已经将PDFBox库添加到你的Java项目中。你可以通过Maven或手动下载并导入jar文件来添加PDFBox库。