水印修复

ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/file/WatermarkUtil.java

@@ -123,8 +123,8 @@ public class WatermarkUtil {
         File pdfOutputFile = FileUtil.touch(FileUtils.addFolderBeforeFileName(pdfFile.getPath(), "watermark"));
         // 配置PDF水印参数
         WatermarkConfig pdfConfig = new WatermarkConfig.Builder()
-            .watermarkText("测试水印PDF")
-            .fontName(getFontName(pdfFile.getPath(),"测试水印PDF"))
+            .watermarkText("测试水印")
+            .fontName(getFontName(pdfFile.getPath(),"测试水印"))
             .fontSize(30)
             .color(Color.RED)
             .alpha(0.3f)

ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/file/watermark/processor/PdfWatermarkProcessor.java

 package org.dromara.common.core.utils.file.watermark.processor;
 
+import cn.hutool.core.io.FileUtil;
 import com.itextpdf.text.BaseColor;
 import com.itextpdf.text.DocumentException;
 import com.itextpdf.text.Element;
@@ -134,14 +135,19 @@ public class PdfWatermarkProcessor implements WatermarkProcessor {
         } else if (osName.contains("mac")) {
             fontPath = "/Library/Fonts/" + fontName + ".ttf";
         } else if (osName.contains("linux")) {
-            fontPath = "/usr/share/fonts/truetype/" + fontName + ".ttf";
+            // Linux下尝试多个路径
+            String[] paths = {
+                "/usr/share/fonts/truetype/" + fontName + ".ttf",
+                "/usr/share/fonts/opentype/" + fontName + ".ttf",
+                "/usr/local/share/fonts/" + fontName + ".ttf"
+            };
+            for (String path : paths) {
+                if (FileUtil.exist(path)) {
+                    return path;
                 }
-
-        // 检查文件是否存在
-        if (fontPath != null && new File(fontPath).exists()) {
-            return fontPath;
             }
-
+            return paths[0];
+        }
         return null;
     }
 }