diff --git a/persistence-service-v1/persistence-service-server-v1/src/main/java/com/iqser/red/service/peristence/v1/server/utils/FileSystemBackedArchiver.java b/persistence-service-v1/persistence-service-server-v1/src/main/java/com/iqser/red/service/peristence/v1/server/utils/FileSystemBackedArchiver.java
index 7e9db615b..7c48567d5 100644
--- a/persistence-service-v1/persistence-service-server-v1/src/main/java/com/iqser/red/service/peristence/v1/server/utils/FileSystemBackedArchiver.java
+++ b/persistence-service-v1/persistence-service-server-v1/src/main/java/com/iqser/red/service/peristence/v1/server/utils/FileSystemBackedArchiver.java
@@ -7,6 +7,7 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.file.Files;
+import java.nio.file.attribute.BasicFileAttributes;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
@@ -23,6 +24,7 @@ import lombok.extern.slf4j.Slf4j;
 public class FileSystemBackedArchiver implements AutoCloseable {
 
     private final boolean rethrowExceptions;
+    private final boolean useFileAttributes;
     private final Set<String> createdFolders = new HashSet<>();
     private final File tempFile;
     private final ZipOutputStream zipOutputStream;
@@ -33,7 +35,7 @@ public class FileSystemBackedArchiver implements AutoCloseable {
     @SneakyThrows
     public FileSystemBackedArchiver() {
 
-        this(false);
+        this(false, true);
 
     }
 
@@ -44,9 +46,10 @@ public class FileSystemBackedArchiver implements AutoCloseable {
      * @param rethrowExceptions If true exceptions caught when handling streams and files will be re-thrown.
      */
     @SneakyThrows
-    FileSystemBackedArchiver(boolean rethrowExceptions) {
+    FileSystemBackedArchiver(boolean rethrowExceptions, boolean useFileAttributes) {
 
         this.rethrowExceptions = rethrowExceptions;
+        this.useFileAttributes = useFileAttributes;
         tempFile = FileUtils.createTempFile("archive", ".zip");
         zipOutputStream = new ZipOutputStream(new FileOutputStream(tempFile));
     }
@@ -127,7 +130,18 @@ public class FileSystemBackedArchiver implements AutoCloseable {
         }
 
         if (tempFile.exists()) {
-            tempFileLength = tempFile.length();
+            try {
+                if (useFileAttributes) {
+                    var basicFileAttributes = Files.readAttributes(tempFile.toPath(), BasicFileAttributes.class);
+                    tempFileLength = basicFileAttributes.size();
+                } else {
+                    tempFileLength = tempFile.length();
+                }
+            } catch (IOException e) {
+                if (rethrowExceptions) {
+                    throw new RuntimeException(e);
+                }
+            }
         } else {
             log.warn("The temp file {} was deleted before it was completely processed", tempFile);
         }
diff --git a/persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/utils/FileSystemBackedArchiverTest.java b/persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/utils/FileSystemBackedArchiverTest.java
index 3200eab36..3f75c8a85 100644
--- a/persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/utils/FileSystemBackedArchiverTest.java
+++ b/persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/utils/FileSystemBackedArchiverTest.java
@@ -25,7 +25,7 @@ public class FileSystemBackedArchiverTest {
     @SneakyThrows
     public void testFileSystemBackedArchiver() {
 
-        try (var fileSystemBackedArchiver = new FileSystemBackedArchiver(true)) {
+        try (var fileSystemBackedArchiver = new FileSystemBackedArchiver(true, false)) {
 
             SplittableRandom sr = new SplittableRandom();
 
@@ -62,7 +62,7 @@ public class FileSystemBackedArchiverTest {
     @Test
     public void testContentLengthForTwoEntries() {
 
-        try (var fileSystemBackedArchiver = new FileSystemBackedArchiver(true)) {
+        try (var fileSystemBackedArchiver = new FileSystemBackedArchiver(true, false)) {
 
             fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Original", "original", dummyFileContent));
             fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Preview", "preview", dummyFileContent));
@@ -72,11 +72,40 @@ public class FileSystemBackedArchiverTest {
     }
 
 
+    @Test
+    public void testContentLengthForTwoEntriesComparingFileSize() {
+
+        long defaultFileLength;
+        try (var fileSystemBackedArchiver = new FileSystemBackedArchiver(true, false)) {
+
+            fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Original", "original", dummyFileContent));
+            fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Preview", "preview", dummyFileContent));
+
+            long contentLength = fileSystemBackedArchiver.getContentLength();
+            assertThat(contentLength).isGreaterThan(0);
+            defaultFileLength = contentLength;
+        }
+
+        long fileAttributesContentLength;
+        try (var fileSystemBackedArchiver = new FileSystemBackedArchiver(true, true)) {
+
+            fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Original", "original", dummyFileContent));
+            fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Preview", "preview", dummyFileContent));
+
+            long contentLength = fileSystemBackedArchiver.getContentLength();
+            assertThat(contentLength).isGreaterThan(0);
+            fileAttributesContentLength = contentLength;
+        }
+
+        assertThat(defaultFileLength).isEqualTo(fileAttributesContentLength);
+    }
+
+
     @Test
     @SneakyThrows
     public void testContentLengthForTwoEntriesAndStream() {
 
-        try (var fileSystemBackedArchiver = new FileSystemBackedArchiver(true)) {
+        try (var fileSystemBackedArchiver = new FileSystemBackedArchiver(true, false)) {
 
             fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Original", "original", dummyFileContent));
             fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Preview", "preview", dummyFileContent));
@@ -95,7 +124,7 @@ public class FileSystemBackedArchiverTest {
     @Test
     public void testContentLengthForTwoEntriesWithClosing() {
         // deliberately do not use try-with-resources to see if the content-length is available after temp file deletion
-        var fileSystemBackedArchiver = new FileSystemBackedArchiver(true);
+        var fileSystemBackedArchiver = new FileSystemBackedArchiver(true, false);
 
         fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Original", "original", dummyFileContent));
         fileSystemBackedArchiver.addEntry(new FileSystemBackedArchiver.ArchiveModel("Preview", "preview", dummyFileContent));