1.删除无用代码

amos-boot-system-tzs/amos-boot-module-jg/amos-boot-module-jg-biz/src/main/java/com/yeejoin/amos/boot/module/jg/biz/service/impl/PdfServiceImpl.java

@@ -33,7 +33,7 @@ public class PdfServiceImpl implements IPdfService {
         File imageFile = null, file = null;
         try {
             imageFile = File.createTempFile("temp", ".png");
-            PdfUtils.generatorImageWithText(imageFile, 100, 50, text , Color.RED);
+            PdfUtils.generatorImageWithText(imageFile, 100, 50, text, Color.RED);
             file = PdfUtils.addImageToPdf(filePath, 100, 50, imageFile.getAbsolutePath());
             String fileName = extractFileNameFromPath(inputPdfPath);
             MultipartFile mockMultipartFile = new MockMultipartFile(fileName, fileName, ContentType.APPLICATION_OCTET_STREAM.toString(), new FileInputStream(file));
@@ -45,10 +45,10 @@ public class PdfServiceImpl implements IPdfService {
         } catch (IOException e) {
             e.printStackTrace();
         } finally {
-            if(imageFile != null){
+            if (imageFile != null) {
                 imageFile.deleteOnExit();
             }
-            if(file != null){
+            if (file != null) {
                 file.deleteOnExit();
             }
         }
@@ -59,10 +59,8 @@ public class PdfServiceImpl implements IPdfService {
     public String signToPdfWaterPrint(String inputPdfPath, String text) {
         String newFilePath = "";
         String filePath = fileServerUrl + inputPdfPath;
-        File imageFile = null, file = null;
+        File file = null;
         try {
-            imageFile = File.createTempFile("temp", ".png");
-            PdfUtils.generatorImageWithText(imageFile, 200, 100, text , Color.RED);
             file = PdfUtils.addFullPageWatermark(filePath, "已作废");
             String fileName = extractFileNameFromPath(inputPdfPath);
             MultipartFile mockMultipartFile = new MockMultipartFile(fileName, fileName, ContentType.APPLICATION_OCTET_STREAM.toString(), new FileInputStream(file));
@@ -74,10 +72,7 @@ public class PdfServiceImpl implements IPdfService {
         } catch (IOException e) {
             e.printStackTrace();
         } finally {
-            if(imageFile != null){
-                imageFile.deleteOnExit();
-            }
-            if(file != null){
+            if (file != null) {
                 file.deleteOnExit();
             }
         }

amos-boot-system-tzs/amos-boot-module-jg/amos-boot-module-jg-biz/src/main/java/com/yeejoin/amos/boot/module/jg/biz/utils/PdfUtils.java

@@ -93,13 +93,10 @@ public class PdfUtils {
             outputPdfFile = File.createTempFile("output", ".pdf");
             reader = new PdfReader(src);
             stamper = new PdfStamper(reader, new FileOutputStream(outputPdfFile));
-            stamper.setFormFlattening(true);
             PdfGState gs = new PdfGState();
             // 设置透明度为0.1
             gs.setFillOpacity(0.2f);
             int n = reader.getNumberOfPages();
-
-
             // 创建一个BaseFont实例，用于水印文本
             BaseFont bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.EMBEDDED);
             // 设置水印文本大小
@@ -110,8 +107,7 @@ public class PdfUtils {
             float x = 0;
             // 遍历PDF的每一页
             for (int i = 1; i <= n; i++) {
-                PdfContentByte over = stamper.getUnderContent(i);
-
+                PdfContentByte over = stamper.getOverContent(i);
                 // 获取页面尺寸
                 Rectangle pageSize = reader.getPageSizeWithRotation(i);
                 float pageWidth = pageSize.getWidth();
@@ -119,10 +115,8 @@ public class PdfUtils {
 
                 // 从页面底部开始
                 float y = pageHeight;
-
                 // 计算文本宽度
                 float textWidth = bf.getWidthPoint(watermarkText, fontSize);
-
                 // 添加水印文本到页面
                 while (y > 0) {
                     // 文本从页面左侧开始
@@ -133,6 +127,8 @@ public class PdfUtils {
                         //水印颜色
                         over.setColorFill(BaseColor.BLACK);
                         over.setGState(gs);
+                        // 设置文本渲染模式为填充，使文本不可选择
+                        over.setTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL);
                         over.setTextMatrix(x, y);
                         over.showTextAligned(Element.ALIGN_CENTER, watermarkText, x, y, 45);
                         over.endText();
@@ -156,4 +152,5 @@ public class PdfUtils {
         return outputPdfFile;
     }
 
+
 }