diff --git a/src/main/java/ru/soune/nocopy/service/FileSimilarityService.java b/src/main/java/ru/soune/nocopy/service/FileSimilarityService.java
index 8d809f7..8ad1d12 100644
--- a/src/main/java/ru/soune/nocopy/service/FileSimilarityService.java
+++ b/src/main/java/ru/soune/nocopy/service/FileSimilarityService.java
@@ -152,17 +152,17 @@ public class FileSimilarityService {
         return duplicates;
     }
 
-    public void hasDuplicatesByHash(String path, Long userId, String mimeType) throws Exception {
-        String hash = calculateFileHash(path);
-        List<FileEntity> fileEntityList = fileEntityRepository.findByUserIdAndMimeType(userId, mimeType);
-
-        for (FileEntity file : fileEntityList) {
-            if (calculateFileHash(file.getFilePath()).equals(hash)) {
-                throw new DuplicateImageException("Duplicate", file.getId(),
-                        file.getUserId());
-            }
-        }
-    }
+//    public void hasDuplicatesByHash(String path, Long userId, String mimeType) throws Exception {
+//        String hash = calculateFileHash(path);
+//        List<FileEntity> fileEntityList = fileEntityRepository.findByUserIdAndMimeType(userId, mimeType);
+//
+//        for (FileEntity file : fileEntityList) {
+//            if (calculateFileHash(file.getFilePath()).equals(hash)) {
+//                throw new DuplicateImageException("Duplicate", file.getId(),
+//                        file.getUserId());
+//            }
+//        }
+//    }
 
 //    public Page<SimilarFileDTO> findSimilarFiles(String fileId, SimilarityFilter filter, Pageable pageable,
 //                                                 String authToken) throws Exception {
diff --git a/src/main/java/ru/soune/nocopy/service/file/impl/FileUploadServiceImpl.java b/src/main/java/ru/soune/nocopy/service/file/impl/FileUploadServiceImpl.java
index 1b31859..6c029a1 100644
--- a/src/main/java/ru/soune/nocopy/service/file/impl/FileUploadServiceImpl.java
+++ b/src/main/java/ru/soune/nocopy/service/file/impl/FileUploadServiceImpl.java
@@ -2,6 +2,9 @@ package ru.soune.nocopy.service.file.impl;
 
 import com.vrt.NoCopyFileService;
 import com.vrt.fileprotection.FileProtector;
+import com.vrt.fileprotection.NoCopyCheckResult;
+import com.vrt.fileprotection.audio.AudioCheckResult;
+import com.vrt.fileprotection.documents.DocumentCheckResult;
 import jakarta.annotation.PostConstruct;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -321,8 +324,29 @@ public class FileUploadServiceImpl implements FileUploadService {
                     if (session.getFileType().startsWith("image")) {
                         checkForDuplicatesSynchronously(finalFilePath);
                     } else if (session.getFileType().startsWith("audio") || session.getFileType().startsWith("document")) {
-                        fileSimilarityService.hasDuplicatesByHash(finalFilePath, session.getUserId(),
-                                session.getFileType());
+                        File file = new File(finalFilePath);
+                        FileProtector.Type type = "document".equals(session.getFileType()) ?
+                                FileProtector.Type.DOC : FileProtector.Type.AUDIO;
+
+                        NoCopyCheckResult checkResult = noCopyFileService.checkFile(file, type);
+
+                        switch (checkResult) {
+                            case DocumentCheckResult.Success success -> {
+                                FileProtector.FileInfo info = success.getInfo();
+                                throw new DuplicateImageException("Duplicate", info.getId(),
+                                        Long.valueOf(info.getOwnerId()));
+                            }
+                            case AudioCheckResult.Success success -> {
+                                FileProtector.FileInfo info = success.getInfo();
+                                throw new DuplicateImageException("Duplicate", info.getId(),
+                                        Long.valueOf(info.getOwnerId()));
+                            }
+                            case DocumentCheckResult.Failed failed ->
+                                    log.warn("Document check failed: {}", failed.getMessage());
+                            case AudioCheckResult.Failed failed ->
+                                    log.warn("Audio check failed: {}", failed.getMessage());
+                            default -> log.warn("Unexpected result type: {}", checkResult.getClass().getSimpleName());
+                        }
                     }
                 }