diff --git a/ry-api/ruoyi-business/src/main/java/com/ruoyi/business/service/InvitationPdfService.java b/ry-api/ruoyi-business/src/main/java/com/ruoyi/business/service/InvitationPdfService.java
index 582defa..ca13c96 100644
--- a/ry-api/ruoyi-business/src/main/java/com/ruoyi/business/service/InvitationPdfService.java
+++ b/ry-api/ruoyi-business/src/main/java/com/ruoyi/business/service/InvitationPdfService.java
@@ -56,10 +56,10 @@ public class InvitationPdfService {
     /** 公章尺寸 (宽高, px), 复用 PdfService 劳务协议章口径 */
     private static final float SEAL_WIDTH = 120f;
     private static final float SEAL_HEIGHT = 120f;
-    /** 需盖章的落款机构名 (取全文最后一个) */
-    private static final String ORG_TEXT = "北京整合医学学会";
-    /** 姓名占位符 (忽略大小写, 兼容 xxx / XXX) */
-    private static final String PLACEHOLDER = "xxx";
+    /** 需盖章的落款机构名 (取全文最后一个), 兼容无空格/每字空格两种排版 */
+    private static final String[] ORG_TEXTS = {"北京整合医学学会", "北 京 整 合 医 学 学 会"};
+    /** 姓名占位符 (忽略大小写, 由 toLowerCase 归一), 兼容无空格/带空格两种排版 */
+    private static final String[] PLACEHOLDERS = {"xxx", "x x x"};
 
     /** 按 URL 下载邀请函模板 PDF 字节 (批量发送时对同一会议只调用一次) */
     public byte[] downloadTemplate(String url) {
@@ -144,21 +144,27 @@ public class InvitationPdfService {
             }
 
             String lower = full.toLowerCase(Locale.ROOT);
-            int i = 0;
-            while ((i = lower.indexOf(PLACEHOLDER, i)) >= 0) {
-                nameTargets.add(buildNameTarget(charInfos, i, PLACEHOLDER.length(), p));
-                i += PLACEHOLDER.length();
+            // 姓名占位符: 兼容无空格/带空格两种写法 (xxx / x x x, 大小写由 toLowerCase 归一)
+            for (String ph : PLACEHOLDERS) {
+                int i = 0;
+                while ((i = lower.indexOf(ph, i)) >= 0) {
+                    nameTargets.add(buildNameTarget(charInfos, i, ph.length(), p));
+                    i += ph.length();
+                }
             }
-            int j = 0;
-            while ((j = full.indexOf(ORG_TEXT, j)) >= 0) {
-                seal = buildSealTarget(charInfos, j, ORG_TEXT.length(), p);
-                j += ORG_TEXT.length();
+            // 落款机构: 兼容无空格/每字空格两种写法, 取全文最后一个匹配
+            for (String org : ORG_TEXTS) {
+                int j = 0;
+                while ((j = full.indexOf(org, j)) >= 0) {
+                    seal = buildSealTarget(charInfos, j, org.length(), p);
+                    j += org.length();
+                }
             }
         }
 
         // 第二遍: 叠加
         if (nameTargets.isEmpty()) {
-            log.warn("[invitation] 未找到占位符 xxx, 跳过姓名替换");
+            log.warn("[invitation] 未找到姓名占位符 (xxx / x x x), 跳过姓名替换");
         } else {
             PdfFont cjkFont = PdfFontFactory.createFont("simsun.ttc,0", PdfEncodings.IDENTITY_H, false);
             for (NameTarget t : nameTargets) {
@@ -166,7 +172,7 @@ public class InvitationPdfService {
             }
         }
         if (seal == null) {
-            log.warn("[invitation] 未找到 '{}', 跳过盖章", ORG_TEXT);
+            log.warn("[invitation] 未找到落款机构名 (北京整合医学学会), 跳过盖章");
         } else {
             drawSeal(doc, seal);
         }