diff -urN kfilemetadata-5.116.0.orig/src/extractors/mobiextractor.cpp kfilemetadata-5.116.0/src/extractors/mobiextractor.cpp
--- kfilemetadata-5.116.0.orig/src/extractors/mobiextractor.cpp	2024-05-04 14:39:33.000000000 +0300
+++ kfilemetadata-5.116.0/src/extractors/mobiextractor.cpp	2025-08-16 01:40:03.459570822 +0300
@@ -10,6 +10,7 @@
 
 #include "mobiextractor.h"
 
+#include <qmobipocket_version.h>
 #include <qmobipocket/mobipocket.h>
 
 #include <QFile>
@@ -17,6 +18,7 @@
 
 using namespace KFileMetaData;
 
+#if QMOBIPOCKET_VERSION_MAJOR < 3
 class QFileStream : public Mobipocket::Stream
 {
 public:
@@ -32,11 +34,11 @@
 private:
     QFile d;
 };
+#endif
 
 MobiExtractor::MobiExtractor(QObject* parent)
     : ExtractorPlugin(parent)
 {
-
 }
 
 static const QStringList supportedMimeTypes =
@@ -51,10 +53,20 @@
 
 void MobiExtractor::extract(ExtractionResult* result)
 {
+#if QMOBIPOCKET_VERSION_MAJOR < 3
     QFileStream stream(result->inputUrl());
     Mobipocket::Document doc(&stream);
-    if (!doc.isValid())
+#else
+    QFile file(result->inputUrl());
+    if (!file.open(QIODevice::ReadOnly)) {
+        return;
+    }
+    Mobipocket::Document doc(&file);
+#endif
+
+    if (!doc.isValid()) {
         return;
+    }
 
     result->addType(Type::Document);
 
@@ -97,7 +109,6 @@
 
         result->append(document.toPlainText());
     }
-
 }
 
 #include "moc_mobiextractor.cpp"