diff --git a/web3-credential-server/src/main/java/web3/s3Storage/service/S3StorageService.java b/web3-credential-server/src/main/java/web3/s3Storage/service/S3StorageService.java
index dd69092..b26f49e 100644
--- a/web3-credential-server/src/main/java/web3/s3Storage/service/S3StorageService.java
+++ b/web3-credential-server/src/main/java/web3/s3Storage/service/S3StorageService.java
@@ -189,7 +189,7 @@ public String replacePdfPage(Wallet wallet, int pageNumberToRemove, MultipartFil
 
         // PDF 합치기
         byte[] finalPdfBytes = mergeThreePdfs(frontPart, newPdfBytes, backPart);
-        HashMap<String, String> metadata = getPdfMetadata(fileName);
+        HashMap<String, String> metadata = decodeMetadata(getPdfMetadata(fileName));
 
         // 최종 PDF를 S3에 업로드
         uploadToS3(fileName, metadata, finalPdfBytes);