diff --git a/PdfForQtLib/sources/pdfconstants.h b/PdfForQtLib/sources/pdfconstants.h
index be696ce..1973126 100644
--- a/PdfForQtLib/sources/pdfconstants.h
+++ b/PdfForQtLib/sources/pdfconstants.h
@@ -23,7 +23,7 @@ namespace pdf
 {
 
 // Name of the library, together with version
-static constexpr const char* PDF_LIBRARY_NAME = "PdfForQt 1.0.0";
+static constexpr const char* PDF_LIBRARY_NAME = "Pdf4Qt 1.0.0";
 
 // Structure file constants
 static constexpr const char* PDF_END_OF_FILE_MARK = "%%EOF";
diff --git a/PdfForQtViewer/PdfForQtViewer.pro b/PdfForQtViewer/PdfForQtViewer.pro
index 518493b..2d8bb12 100644
--- a/PdfForQtViewer/PdfForQtViewer.pro
+++ b/PdfForQtViewer/PdfForQtViewer.pro
@@ -1,12 +1,21 @@
-#-------------------------------------------------
+#    Copyright (C) 2018-2020 Jakub Melka
 #
-# Project created by QtCreator 2018-11-18T16:50:12
+#    This file is part of PdfForQt.
 #
-#-------------------------------------------------
+#    PdfForQt is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Lesser General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    PdfForQt is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Lesser General Public License for more details.
+#
+#    You should have received a copy of the GNU Lesser General Public License
+#    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
 
-QT       += core gui winextras printsupport texttospeech network xml
-
-greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+QT += core gui widgets winextras printsupport texttospeech network xml
 
 TARGET = PdfForQtViewer
 TEMPLATE = app
@@ -18,16 +27,8 @@ RC_ICONS = $$PWD/resources/app-icon.ico
 QMAKE_TARGET_DESCRIPTION = "PDF viewer for Qt"
 QMAKE_TARGET_COPYRIGHT = "(c) Jakub Melka 2018-2020"
 
-# The following define makes your compiler emit warnings if you use
-# any feature of Qt which has been marked as deprecated (the exact warnings
-# depend on your compiler). Please consult the documentation of the
-# deprecated API in order to know how to port your code away from it.
-DEFINES += QT_DEPRECATED_WARNINGS
 
-# You can also make your code fail to compile if you use deprecated APIs.
-# In order to do so, uncomment the following line.
-# You can also select to disable deprecated APIs only up to a certain version of Qt.
-#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+DEFINES += QT_DEPRECATED_WARNINGS
 
 QMAKE_CXXFLAGS += /std:c++latest /utf-8
 
diff --git a/PdfForQtViewer/pdfprogramcontroller.cpp b/PdfForQtViewer/pdfprogramcontroller.cpp
index 5c26a58..ee3aba0 100644
--- a/PdfForQtViewer/pdfprogramcontroller.cpp
+++ b/PdfForQtViewer/pdfprogramcontroller.cpp
@@ -1600,7 +1600,7 @@ void PDFProgramController::updateTitle()
         {
             title = m_fileInfo.fileName;
         }
-        m_mainWindow->setWindowTitle(tr("%1 - %2").arg(m_fileInfo.fileName, QApplication::applicationDisplayName()));
+        m_mainWindow->setWindowTitle(tr("%1 - %2").arg(title, QApplication::applicationDisplayName()));
     }
     else
     {