Java 给PDF文档设置背景颜色和背景图片

客官°小女子只卖身不卖艺 2023-10-18 11:31 2阅读 0赞

如题，这篇文章主要介绍如何在Java应用程序中给PDF文档设置背景颜色和背景图片。

**使用组件：**

**Spire.PDF for Java**

[下载Spire.PDF for JAVA包][Spire.PDF for JAVA]并解压缩，然后从**lib**文件夹下导入**Spire.Pdf.jar**包到Java应用程序中。

原PDF文档如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70][]

**设置背景颜色**

import com.spire.pdf.PdfDocument;
    import com.spire.pdf.PdfPageBase;
    
    import java.awt.*;
    
    public class SetBackgroundColor {
        public static void main(String[] args) {
            //加载PDF文档
            PdfDocument doc = new PdfDocument();
            doc.loadFromFile("original.pdf");
    
            PdfPageBase page;
            int pageCount = doc.getPages().getCount();
    
            //设置背景颜色
            for(int i = 0; i < pageCount; i ++) {
                page = doc.getPages().get(i);
                page.setBackgroundColor(Color.yellow);
            }
    
            //保存
            doc.saveToFile("BackgroundColor.pdf");
        }
    }

设置背景颜色后的效果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70 1][]

**设置背景图片**

import com.spire.pdf.PdfDocument;
    import com.spire.pdf.PdfPageBase;
    
    import java.awt.*;
    
    public class SetBackgroundImage {
    
        public static void main(String[] args) {
            //加载PDF文档
            PdfDocument doc = new PdfDocument();
            doc.loadFromFile("original.pdf");
    
            PdfPageBase page;
            int pageCount = doc.getPages().getCount();
    
            //设置背景图片
            for(int i = 0; i < pageCount; i ++) {
                page = doc.getPages().get(i);
                page.setBackgroundImage("Background.jpg");
            }
    
            //保存
            doc.saveToFile("BackgroundImage.pdf");
        }
    }

设置背景图片后的效果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70 2][]

[Spire.PDF for JAVA]: https://www.e-iceblue.cn/Downloads/Spire-PDF-JAVA.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20181121115008521.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20181121114700694.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20181121114935626.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl,size_16,color_FFFFFF,t_70