diff --git a/src/ui/widgets/signature_update.py b/src/ui/widgets/signature_update.py
new file mode 100644
index 0000000..fc3cb5d
--- /dev/null
+++ b/src/ui/widgets/signature_update.py
@@ -0,0 +1,59 @@
+from PySide6 import QtCore, QtWidgets
+
+from src.backend.catalogue import Catalogue
+from src.backend.database import Database
+
+from .widget_sources.admin_update_signatures_ui import Ui_Dialog
+
+
+class UpdaterThread(QtCore.QThread):
+    progress = QtCore.Signal(int)
+    currtot = QtCore.Signal(int, int)
+
+    def __init__(self, books=None):
+        super().__init__()
+        self.books = books
+        self.db = Database()
+        self.catalogue = Catalogue()
+
+    def run(self):
+        total_books = len(self.books)
+        for index, book in enumerate(self.books):
+            id = book["id"]
+            bookdata = book["bookdata"]
+            ppn = bookdata.link.split("kid=")[-1]
+            result = self.catalogue.get_book(ppn)
+            if result:
+                bookdata.signature = result.signature
+                print(bookdata)
+                self.db.updateBookdata(id, bookdata)
+            else:
+                print(f"No result for {ppn}")
+                self.db.deleteBook(id)
+            self.progress.emit(index + 1)
+            self.currtot.emit(index + 1, total_books)
+
+
+class UpdateSignatures(QtWidgets.QDialog, Ui_Dialog):
+    def __init__(self, parent=None):
+        super(UpdateSignatures, self).__init__(parent)
+        self.setupUi(self)
+        self.setWindowTitle("Updating signatures...")
+        self.progressBar.setValue(0)
+        self.pushButton.clicked.connect(self.start)
+        self.db = Database()
+        self.catalogue = Catalogue()
+
+    def start(self):
+        books = self.db.getAllBooks()
+        total_books = len(books)
+        self.progressBar.setMaximum(total_books)
+        self.updater = UpdaterThread(books)
+        self.updater.progress.connect(self.update_progress)
+        self.updater.start()
+
+    def update_progress(self, value):
+        self.progressBar.setValue(value)
+        if value >= self.progressBar.maximum():
+            self.pushButton.setText("Done")
+            self.pushButton.setEnabled(False)
diff --git a/src/ui/widgets/widget_sources/admin_update_signatures_ui.py b/src/ui/widgets/widget_sources/admin_update_signatures_ui.py
new file mode 100644
index 0000000..a93bf0e
--- /dev/null
+++ b/src/ui/widgets/widget_sources/admin_update_signatures_ui.py
@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+
+################################################################################
+## Form generated from reading UI file 'admin_update_signatures.ui'
+##
+## Created by: Qt User Interface Compiler version 6.9.2
+##
+## WARNING! All changes made in this file will be lost when recompiling UI file!
+################################################################################
+
+from PySide6.QtCore import (QCoreApplication, QDate, QDateTime, QLocale,
+    QMetaObject, QObject, QPoint, QRect,
+    QSize, QTime, QUrl, Qt)
+from PySide6.QtGui import (QBrush, QColor, QConicalGradient, QCursor,
+    QFont, QFontDatabase, QGradient, QIcon,
+    QImage, QKeySequence, QLinearGradient, QPainter,
+    QPalette, QPixmap, QRadialGradient, QTransform)
+from PySide6.QtWidgets import (QApplication, QDialog, QProgressBar, QPushButton,
+    QSizePolicy, QVBoxLayout, QWidget)
+
+class Ui_Dialog(object):
+    def setupUi(self, Dialog):
+        if not Dialog.objectName():
+            Dialog.setObjectName(u"Dialog")
+        Dialog.resize(400, 300)
+        self.verticalLayout = QVBoxLayout(Dialog)
+        self.verticalLayout.setObjectName(u"verticalLayout")
+        self.pushButton = QPushButton(Dialog)
+        self.pushButton.setObjectName(u"pushButton")
+
+        self.verticalLayout.addWidget(self.pushButton)
+
+        self.progressBar = QProgressBar(Dialog)
+        self.progressBar.setObjectName(u"progressBar")
+        self.progressBar.setValue(24)
+
+        self.verticalLayout.addWidget(self.progressBar)
+
+
+        self.retranslateUi(Dialog)
+
+        QMetaObject.connectSlotsByName(Dialog)
+    # setupUi
+
+    def retranslateUi(self, Dialog):
+        Dialog.setWindowTitle(QCoreApplication.translate("Dialog", u"Dialog", None))
+        self.pushButton.setText(QCoreApplication.translate("Dialog", u"Signaturen aktualisieren", None))
+    # retranslateUi
+
diff --git a/src/ui/widgets/widget_sources/new_edition_check_selector_ui.py b/src/ui/widgets/widget_sources/new_edition_check_selector_ui.py
new file mode 100644
index 0000000..a70b5df
--- /dev/null
+++ b/src/ui/widgets/widget_sources/new_edition_check_selector_ui.py
@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+
+################################################################################
+## Form generated from reading UI file 'new_edition_check_selector.ui'
+##
+## Created by: Qt User Interface Compiler version 6.9.2
+##
+## WARNING! All changes made in this file will be lost when recompiling UI file!
+################################################################################
+
+from PySide6.QtCore import (QCoreApplication, QDate, QDateTime, QLocale,
+    QMetaObject, QObject, QPoint, QRect,
+    QSize, QTime, QUrl, Qt)
+from PySide6.QtGui import (QBrush, QColor, QConicalGradient, QCursor,
+    QFont, QFontDatabase, QGradient, QIcon,
+    QImage, QKeySequence, QLinearGradient, QPainter,
+    QPalette, QPixmap, QRadialGradient, QTransform)
+from PySide6.QtWidgets import (QApplication, QDialog, QHBoxLayout, QLabel,
+    QPushButton, QSizePolicy, QVBoxLayout, QWidget)
+
+class Ui_Dialog(object):
+    def setupUi(self, Dialog):
+        if not Dialog.objectName():
+            Dialog.setObjectName(u"Dialog")
+        Dialog.resize(475, 66)
+        self.verticalLayout = QVBoxLayout(Dialog)
+        self.verticalLayout.setObjectName(u"verticalLayout")
+        self.label = QLabel(Dialog)
+        self.label.setObjectName(u"label")
+
+        self.verticalLayout.addWidget(self.label)
+
+        self.horizontalLayout = QHBoxLayout()
+        self.horizontalLayout.setObjectName(u"horizontalLayout")
+        self.btn_apparat = QPushButton(Dialog)
+        self.btn_apparat.setObjectName(u"btn_apparat")
+
+        self.horizontalLayout.addWidget(self.btn_apparat)
+
+        self.btn_prof = QPushButton(Dialog)
+        self.btn_prof.setObjectName(u"btn_prof")
+
+        self.horizontalLayout.addWidget(self.btn_prof)
+
+
+        self.verticalLayout.addLayout(self.horizontalLayout)
+
+
+        self.retranslateUi(Dialog)
+
+        QMetaObject.connectSlotsByName(Dialog)
+    # setupUi
+
+    def retranslateUi(self, Dialog):
+        Dialog.setWindowTitle(QCoreApplication.translate("Dialog", u"Dialog", None))
+        self.label.setText(QCoreApplication.translate("Dialog", u"Soll nur der Apparat gepr\u00fcft werden, oder sollen alle Medien des Profs gepr\u00fcft werden?", None))
+        self.btn_apparat.setText(QCoreApplication.translate("Dialog", u"Apparat", None))
+        self.btn_prof.setText(QCoreApplication.translate("Dialog", u"Prof", None))
+    # retranslateUi
+