diff --git a/src/main/java/com/smart/watchboard/common/support/AwsS3Uploader.java b/src/main/java/com/smart/watchboard/common/support/AwsS3Uploader.java
index 3e7f4db..21d2e65 100644
--- a/src/main/java/com/smart/watchboard/common/support/AwsS3Uploader.java
+++ b/src/main/java/com/smart/watchboard/common/support/AwsS3Uploader.java
@@ -40,7 +40,7 @@ public String uploadFile(S3Dto s3Dto) {
         objectMetadata.setContentLength(s3Dto.getFile().getSize());
 
         String directoryName = s3Dto.getFile().getContentType();
-        String fileName = directoryName + "/" + s3Dto.getDocumentId() + "." + s3Dto.getFile().getOriginalFilename();
+        String fileName = directoryName + "/" + s3Dto.getUserId() + "_" + s3Dto.getDocumentId() + "." + s3Dto.getDataType();
 
         try (InputStream inputStream = s3Dto.getFile().getInputStream()) {
             amazonS3Client.putObject(new PutObjectRequest(bucket, fileName, inputStream, objectMetadata)
@@ -67,7 +67,7 @@ public String uploadTextPdfFile(S3Dto s3Dto) {
         objectMetadata.setContentLength(s3Dto.getFile().getSize());
 
         String directoryName = s3Dto.getFile().getContentType();
-        String fileName = directoryName + "/" + s3Dto.getDocumentId() + "." + s3Dto.getFile().getOriginalFilename();
+        String fileName = directoryName + "/" + s3Dto.getUserId() + "_" + s3Dto.getDocumentId() + "." + s3Dto.getDataType();
 
         try (InputStream inputStream = s3Dto.getFile().getInputStream()) {
             amazonS3Client.putObject(new PutObjectRequest(bucket, fileName, inputStream, objectMetadata)
diff --git a/src/main/java/com/smart/watchboard/controller/AudioFileController.java b/src/main/java/com/smart/watchboard/controller/AudioFileController.java
index e121e79..4f3181b 100644
--- a/src/main/java/com/smart/watchboard/controller/AudioFileController.java
+++ b/src/main/java/com/smart/watchboard/controller/AudioFileController.java
@@ -24,6 +24,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
 
 import static com.smart.watchboard.common.support.PdfConverter.convertStringToPdf;
 
@@ -43,19 +44,22 @@ public class AudioFileController {
     private final MindmapService mindmapService;
     private final WhiteboardService whiteboardService;
     private final KeywordService keywordService;
+    private final JwtService jwtService;
 
     @PostMapping("/{documentID}/audio")
     public ResponseEntity<?> uploadAudioFile(@PathVariable(value = "documentID") long documentId, @RequestParam("audio") MultipartFile audioFile, @RequestHeader("Authorization") String accessToken) throws UnsupportedAudioFileException, IOException, DocumentException {
-        // 토큰 검증
+        Optional<Long> id = jwtService.extractUserId(accessToken);
+        Long userId = id.orElse(null);
+
         // s3에 오디오 파일 저장
-        S3Dto s3Dto = new S3Dto(audioFile, documentId);
+        S3Dto s3Dto = new S3Dto(audioFile, documentId, userId, "mp3");
         String path = awsS3Uploader.uploadFile(s3Dto);
         // STT
         //String sttResult = sttService.getSTT(path);
         ResponseEntity<String> sttResponseEntity = sttService.getSTT(path);
         String sttResult = sttService.getText(sttResponseEntity);
         // convert
-        String sttFileName = "sttResult.pdf";
+        String sttFileName = String.valueOf(userId) + "_" + String.valueOf(documentId) + ".pdf";
         File textPdfFile = convertStringToPdf(sttResult, sttFileName);
 
         String contentType = "application/pdf";
@@ -64,7 +68,7 @@ public ResponseEntity<?> uploadAudioFile(@PathVariable(value = "documentID") lon
 
         FileInputStream fileInputStream = new FileInputStream(textPdfFile);
         MultipartFile multipartFile = new MockMultipartFile(name, originalFilename, contentType, fileInputStream);
-        S3Dto s3DtoForSTT = new S3Dto(multipartFile, 26L);
+        S3Dto s3DtoForSTT = new S3Dto(multipartFile, documentId, userId, "pdf");
         String textPdfPath = awsS3Uploader.uploadTextPdfFile(s3DtoForSTT);
 
         List<SttData> data = sttService.getSTTData(sttResponseEntity);
@@ -87,7 +91,10 @@ public ResponseEntity<?> uploadAudioFile(@PathVariable(value = "documentID") lon
 
     @PutMapping("/{documentID}/audio")
     public ResponseEntity<?> updateAudioFile(@PathVariable(value = "documentID") long documentId, @RequestParam("audio") MultipartFile audioFile, @RequestHeader("Authorization") String accessToken) throws UnsupportedAudioFileException, IOException, DocumentException {
-        S3Dto s3Dto = new S3Dto(audioFile, documentId);
+        Optional<Long> id = jwtService.extractUserId(accessToken);
+        Long userId = id.orElse(null);
+
+        S3Dto s3Dto = new S3Dto(audioFile, documentId, userId, "mp3");
         String path = awsS3Uploader.uploadFile(s3Dto);
 
         ResponseEntity<String> sttResponseEntity = sttService.getSTT(path);
@@ -96,7 +103,8 @@ public ResponseEntity<?> updateAudioFile(@PathVariable(value = "documentID") lon
         lectureNoteService.updateLectureNote(documentId, data, sttResult);
 
         // convert
-        String sttFileName = "sttResult.pdf";
+
+        String sttFileName = String.valueOf(userId) + "_" + String.valueOf(documentId) + ".pdf";
         File textPdfFile = convertStringToPdf(sttResult, sttFileName);
 
         String contentType = "application/pdf";
@@ -105,7 +113,7 @@ public ResponseEntity<?> updateAudioFile(@PathVariable(value = "documentID") lon
 
         FileInputStream fileInputStream = new FileInputStream(textPdfFile);
         MultipartFile multipartFile = new MockMultipartFile(name, originalFilename, contentType, fileInputStream);
-        S3Dto s3DtoForSTT = new S3Dto(multipartFile, 26L);
+        S3Dto s3DtoForSTT = new S3Dto(multipartFile, documentId, userId, "pdf");
         String textPdfPath = awsS3Uploader.uploadTextPdfFile(s3DtoForSTT);
 
         ResponseEntity<KeywordsBodyDto> responseEntity = requestService.requestSTTKeywords(textPdfPath);
diff --git a/src/main/java/com/smart/watchboard/controller/LearningFileController.java b/src/main/java/com/smart/watchboard/controller/LearningFileController.java
index e38d96e..fbfafae 100644
--- a/src/main/java/com/smart/watchboard/controller/LearningFileController.java
+++ b/src/main/java/com/smart/watchboard/controller/LearningFileController.java
@@ -17,6 +17,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
 
 @RestController
 @RequestMapping("/documents")
@@ -30,10 +31,14 @@ public class LearningFileController {
     private final WhiteboardService whiteboardService;
     private final SummaryService summaryService;
     private final KeywordService keywordService;
+    private final JwtService jwtService;
 
     @PostMapping("/{documentID}/pdf")
     public ResponseEntity<?> uploadLearningFile(@PathVariable(value = "documentID") long documentId, @RequestParam("pdf") MultipartFile pdfFile, @RequestHeader("Authorization") String accessToken) throws UnsupportedAudioFileException, IOException {
-        S3Dto s3Dto = new S3Dto(pdfFile, documentId);
+        Optional<Long> id = jwtService.extractUserId(accessToken);
+        Long userId = id.orElse(null);
+
+        S3Dto s3Dto = new S3Dto(pdfFile, documentId, userId, "pdf");
         String path = awsS3Uploader.uploadFile(s3Dto);
         ResponseEntity<KeywordsBodyDto> responseEntity = requestService.requestPdfKeywords(path);
         keywordService.createKeywords(responseEntity, documentId);
@@ -47,7 +52,10 @@ public ResponseEntity<?> uploadLearningFile(@PathVariable(value = "documentID")
 
     @PutMapping("/{documentID}/pdf")
     public ResponseEntity<?> updateLearningFile(@PathVariable(value = "documentID") long documentId, @RequestParam("pdf") MultipartFile pdfFile, @RequestHeader("Authorization") String accessToken) throws UnsupportedAudioFileException, IOException {
-        S3Dto s3Dto = new S3Dto(pdfFile, documentId);
+        Optional<Long> id = jwtService.extractUserId(accessToken);
+        Long userId = id.orElse(null);
+
+        S3Dto s3Dto = new S3Dto(pdfFile, documentId, userId, "pdf");
         String path = awsS3Uploader.uploadFile(s3Dto);
         ResponseEntity<KeywordsBodyDto> responseEntity = requestService.requestPdfKeywords(path);
         keywordService.renewKeywords(responseEntity, documentId);
@@ -76,7 +84,10 @@ public ResponseEntity<?> getLearningFile(@PathVariable(value = "documentID") lon
 
     @GetMapping("/test")
     public ResponseEntity<?> test(@RequestHeader("Authorization") String accessToken, @RequestParam("pdf") MultipartFile pdfFile) throws JsonProcessingException {
-        S3Dto s3Dto = new S3Dto(pdfFile, 11L);
+        Optional<Long> id = jwtService.extractUserId(accessToken);
+        Long userId = id.orElse(null);
+
+        S3Dto s3Dto = new S3Dto(pdfFile, 11L, userId, "pdf");
         String path = awsS3Uploader.uploadFile(s3Dto);
         //System.out.println(path);
         //String path = "abcd";
diff --git a/src/main/java/com/smart/watchboard/dto/S3Dto.java b/src/main/java/com/smart/watchboard/dto/S3Dto.java
index 65bf62f..3213615 100644
--- a/src/main/java/com/smart/watchboard/dto/S3Dto.java
+++ b/src/main/java/com/smart/watchboard/dto/S3Dto.java
@@ -11,11 +11,13 @@
 public class S3Dto {
     private MultipartFile file;
     private Long documentId;
-    //private Long fileId;
+    private Long userId;
+    private String dataType;
 
-    public S3Dto(MultipartFile file, long documentId) {
+    public S3Dto(MultipartFile file, Long documentId, Long userId, String dataType) {
         this.file = file;
         this.documentId = documentId;
-        //this.fileId = fileId;
+        this.userId = userId;
+        this.dataType = dataType;
     }
 }