1

2

3

4

5

6

7

8

<dependencies> 

    <dependency> 

        <groupId>com.itextpdf</groupId> 

        <artifactId>itext7-core</artifactId> 

        <version>7.2.5</version> 

        <type>pom</type> 

    </dependency> 

</dependencies>

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

import com.itextpdf.forms.PdfAcroForm; 

import com.itextpdf.forms.fields.PdfFormField; 

import com.itextpdf.kernel.pdf.PdfDocument; 

import com.itextpdf.kernel.pdf.PdfReader; 

import com.itextpdf.kernel.pdf.PdfWriter; 

import java.io.File; 

import java.io.IOException; 

import java.util.HashMap; 

import java.util.Map; 

public class PdfTemplateGenerator { 

    public static void main(String[] args) { 

        // 模板路径与输出路径 

        String templatePath = "template.pdf"; 

        String outputPath = "output.pdf"; 

        // 动态数据（键为表单字段名称，值为填充内容） 

        Map<String, String> values = new HashMap<>(); 

        values.put("name", "张三"); 

        values.put("age", "25"); 

        try { 

            generatePdfFromTemplate(templatePath, outputPath, values); 

            System.out.println("PDF 生成成功，路径：" + outputPath); 

        } catch (IOException e) { 

            System.err.println("错误：" + e.getMessage()); 

            e.printStackTrace(); 

        } 

    } 

    /** 

     * 基于 PDF 模板生成新文档并填充数据 

     * @param templatePath PDF 模板路径 

     * @param outputPath 输出文件路径 

     * @param values 字段名称与对应值的映射 

     */ 

    public static void generatePdfFromTemplate(String templatePath, String outputPath, Map<String, String> values) throws IOException { 

        // 1. 初始化读取与写入工具 

        PdfReader reader = new PdfReader(new File(templatePath)); 

        PdfWriter writer = new PdfWriter(new File(outputPath)); 

        PdfDocument pdfDoc = new PdfDocument(reader, writer); 

        // 2. 获取模板中的表单字段 

        PdfAcroForm form = PdfAcroForm.getAcroForm(pdfDoc, true); 

        // 3. 遍历数据并填充字段 

        for (Map.Entry<String, String> entry : values.entrySet()) { 

            String fieldName = entry.getKey(); 

            String fieldValue = entry.getValue(); 

            PdfFormField field = form.getField(fieldName); 

            if (field != null) { 

                field.setValue(fieldValue); // 设置字段值 

            } else { 

                System.warn("未找到表单字段：" + fieldName); 

            } 

        } 

        // 4. 扁平化处理（可选：将表单转换为固定文本，不可编辑） 

        form.flattenFields(); 

        // 5. 关闭文档，完成生成 

        pdfDoc.close(); 

    } 

}