<dependency>
<groupId>com.lowagie</groupId>
<artifactId>itext</artifactId>
<version>2.1.7</version>
</dependency>
<!-- PDFBox -->
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>2.0.24</version>
</dependency>
<!-- iText -->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext7-core</artifactId>
<version>7.1.15</version>
<type>pom</type>
</dependency>
import lombok.extern.slf4j.Slf4j;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.rendering.ImageType;
import org.apache.pdfbox.rendering.PDFRenderer;
import org.jeecg.common.api.vo.Result;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.time.Instant;
@Slf4j
public class ImagesToPdfSort {
/**
* 将PDF转换为图片
* @param pdfFile 需要转换的PDF文件
*/
public static Result<?> pdfToImageExample(File pdfFile) {
try {
// 打开PDF文档
PDDocument document = PDDocument.load(pdfFile);
// 创建PDFRenderer对象
PDFRenderer pdfRenderer = new PDFRenderer(document);
int pageCount = document.getNumberOfPages();
for (int pageIndex = 0; pageIndex < pageCount; pageIndex++) {
// 渲染PDF页面到BufferedImage
BufferedImage bim = pdfRenderer.renderImageWithDPI(pageIndex, 300, ImageType.RGB);
// 构建输出文件路径
// 获取保存文件的路径
if(!new File("path/../..").exists()){
new File("path/../..").mkdir();
}
String fileName = "path/../.." + "/" + (pageIndex + 1) + Instant.now().toEpochMilli() + ".jpg";
File outputFile = new File(fileName);
// 将BufferedImage保存为JPG文件
ImageIO.write(bim, "jpg", outputFile);
}
// 关闭PDF文档
document.close();
} catch (IOException e) {
log.error(pdfFile.getName() + "PDF转图片失败!", e);
return Result.error("PDF转图片失败");
}
return Result.ok("PDF转图片成功");
}
}