JAVA解析PDF之IText

最新推荐文章于 2025-05-27 13:05:12 发布

失落的玛阿特

最新推荐文章于 2025-05-27 13:05:12 发布

阅读量2.2k

点赞数

本文演示了如何使用PDFWriter实例化文档对象，并通过设置严格图像序列属性，实现PDF中有序插入多个图像文件，包括'otsoe.jpg'、'getacro.gif'等。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

public static void main(String[] args) {
        
        System.out.println("ImageSequence");
        
        // step 1: creation of a document-object
        Document document = new Document();
        
        try {
            // step 2:
            // we create a writer that listens to the document
            // and directs a PDF-stream to a file
            PdfWriter.getInstance(document, new FileOutputStream("notInSequence.pdf"));
            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("inSequence.pdf"));
            writer.setStrictImageSequence(true);
            
            // step 3: we open the document
            document.open();
            
            // step 4:
            document.add(new Paragraph("1st image"));
            Image jpg = Image.getInstance("otsoe.jpg");
            document.add(jpg);
            document.add(new Paragraph("2nd image"));
            Image gif= Image.getInstance("getacro.gif");
            document.add(gif);
            document.add(new Paragraph("3rd image"));
            document.add(jpg);
            document.add(new Paragraph("4th image"));
            document.add(gif);
            document.add(new Paragraph("5th image"));
            document.add(jpg);
            document.add(new Paragraph("6th image"));
            document.add(gif);
            document.add(new Paragraph("7th image"));
            document.add(jpg);
        }
        catch(DocumentException de) {
            System.err.println(de.getMessage());
        }
        catch(IOException ioe) {
            System.err.println(ioe.getMessage());
        }
        
        // step 5: we close the document
        document.close();
    }