diff --git a/DDMonorepo.sln b/DDMonorepo.sln
index a3690666..a0e54c47 100644
--- a/DDMonorepo.sln
+++ b/DDMonorepo.sln
@@ -74,8 +74,6 @@ Project("{F184B08F-C81C-45F6-A57F-5ABD9991F28F}") = "DBCleaner", "DBCleaner\DBCl
 EndProject
 Project("{F184B08F-C81C-45F6-A57F-5ABD9991F28F}") = "EDMIService.Tests", "EDMIService.Tests\EDMIService.Tests.vbproj", "{E3DA65CA-964D-4896-991A-B5426884E215}"
 EndProject
-Project("{F184B08F-C81C-45F6-A57F-5ABD9991F28F}") = "Jobs", "..\DDModules\Jobs\Jobs.vbproj", "{39EC839A-3C30-4922-A41E-6B09D1DDE5C3}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -182,10 +180,6 @@ Global
 		{E3DA65CA-964D-4896-991A-B5426884E215}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{E3DA65CA-964D-4896-991A-B5426884E215}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{E3DA65CA-964D-4896-991A-B5426884E215}.Release|Any CPU.Build.0 = Release|Any CPU
-		{39EC839A-3C30-4922-A41E-6B09D1DDE5C3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{39EC839A-3C30-4922-A41E-6B09D1DDE5C3}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{39EC839A-3C30-4922-A41E-6B09D1DDE5C3}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{39EC839A-3C30-4922-A41E-6B09D1DDE5C3}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -216,7 +210,6 @@ Global
 		{9D4AC920-C78E-41C3-994E-91690FF79380} = {8FFE925E-8B84-45F1-93CB-32B1C96F41EB}
 		{5A7913CE-7D3D-4E84-B23D-4747C178CD71} = {CC368D6A-6AC4-4EB9-A092-14700FABEF7A}
 		{E3DA65CA-964D-4896-991A-B5426884E215} = {7AF3F9C2-C939-4A08-95C1-0453207E298A}
-		{39EC839A-3C30-4922-A41E-6B09D1DDE5C3} = {CC368D6A-6AC4-4EB9-A092-14700FABEF7A}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {C1BE4090-A0FD-48AF-86CB-39099D14B286}
diff --git a/GUIs.Test.ZUGFeRDTest/App.config b/GUIs.Test.ZUGFeRDTest/App.config
index 1da1135b..417e3a18 100644
--- a/GUIs.Test.ZUGFeRDTest/App.config
+++ b/GUIs.Test.ZUGFeRDTest/App.config
@@ -163,26 +163,6 @@
         <assemblyIdentity name="System.Text.Json" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
         <bindingRedirect oldVersion="0.0.0.0-8.0.0.6" newVersion="8.0.0.6" />
       </dependentAssembly>
-      <dependentAssembly>
-        <assemblyIdentity name="GdPicture.NET.14" publicKeyToken="f52a2e60ad468dbb" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-14.3.19.0" newVersion="14.3.19.0" />
-      </dependentAssembly>
-      <dependentAssembly>
-        <assemblyIdentity name="GdPicture.NET.14.Common" publicKeyToken="f52a2e60ad468dbb" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-14.3.19.0" newVersion="14.3.19.0" />
-      </dependentAssembly>
-      <dependentAssembly>
-        <assemblyIdentity name="GdPicture.NET.14" publicKeyToken="f52a2e60ad468dbb" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-14.3.3.0" newVersion="14.3.3.0" />
-      </dependentAssembly>
-      <dependentAssembly>
-        <assemblyIdentity name="GdPicture.NET.14.Common" publicKeyToken="f52a2e60ad468dbb" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-14.3.3.0" newVersion="14.3.3.0" />
-      </dependentAssembly>
-      <dependentAssembly>
-        <assemblyIdentity name="GdPicture.NET.14.Imaging" publicKeyToken="f52a2e60ad468dbb" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-14.3.3.0" newVersion="14.3.3.0" />
-      </dependentAssembly>
     </assemblyBinding>
   </runtime>
 </configuration>
diff --git a/GUIs.Test.ZUGFeRDTest/Form1.Designer.vb b/GUIs.Test.ZUGFeRDTest/Form1.Designer.vb
index 7fa8ec02..7c9d377a 100644
--- a/GUIs.Test.ZUGFeRDTest/Form1.Designer.vb
+++ b/GUIs.Test.ZUGFeRDTest/Form1.Designer.vb
@@ -24,237 +24,225 @@ Partial Class Form1
     'Das Bearbeiten mit dem Code-Editor ist nicht möglich.
     <System.Diagnostics.DebuggerStepThrough()>
     Private Sub InitializeComponent()
-        OpenFileDialog1 = New OpenFileDialog()
-        btRunJob = New Button()
-        ListBox1 = New ListBox()
-        btValidateSerializePDF = New Button()
-        btValidateSerializeParseProps = New Button()
-        btCreateMD5Checksum = New Button()
-        GroupBox1 = New GroupBox()
-        ButtonValidateXMLOnly = New Button()
-        GroupBox2 = New GroupBox()
-        btExtractPDFAttachments = New Button()
-        GroupBox3 = New GroupBox()
-        txtMD5Checksum = New TextBox()
-        txtPropName = New TextBox()
-        GroupBox4 = New GroupBox()
-        btFindExtractXMLValue = New Button()
-        FolderBrowserDialog1 = New FolderBrowserDialog()
-        GroupBox5 = New GroupBox()
-        btWriteBinary = New Button()
-        OpenFileDialog2 = New OpenFileDialog()
-
-        GroupBox1.SuspendLayout()
-        GroupBox2.SuspendLayout()
-        GroupBox3.SuspendLayout()
-        GroupBox4.SuspendLayout()
-        GroupBox5.SuspendLayout()
-        SuspendLayout()
-        ' 
-        ' OpenFileDialog1
-        ' 
-        OpenFileDialog1.FileName = "OpenFileDialog1"
-        ' 
-        ' btRunJob
-        ' 
-        btRunJob.Location = New System.Drawing.Point(8, 29)
-        btRunJob.Margin = New Padding(4, 5, 4, 5)
-        btRunJob.Name = "btRunJob"
-        btRunJob.Size = New System.Drawing.Size(295, 35)
-        btRunJob.TabIndex = 0
-        btRunJob.Text = "Run Job"
-        btRunJob.UseVisualStyleBackColor = True
-        ' 
-        ' ListBox1
-        ' 
-        ListBox1.Anchor = AnchorStyles.Top Or AnchorStyles.Bottom Or AnchorStyles.Left Or AnchorStyles.Right
-        ListBox1.FormattingEnabled = True
-        ListBox1.Location = New System.Drawing.Point(504, 12)
-        ListBox1.Margin = New Padding(4, 5, 4, 5)
-        ListBox1.Name = "ListBox1"
-        ListBox1.Size = New System.Drawing.Size(362, 664)
-        ListBox1.TabIndex = 1
-        ' 
-        ' btValidateSerializePDF
-        ' 
-        btValidateSerializePDF.Location = New System.Drawing.Point(8, 29)
-        btValidateSerializePDF.Margin = New Padding(4, 5, 4, 5)
-        btValidateSerializePDF.Name = "btValidateSerializePDF"
-        btValidateSerializePDF.Size = New System.Drawing.Size(328, 35)
-        btValidateSerializePDF.TabIndex = 2
-        btValidateSerializePDF.Text = "Validate and Serialize PDF"
-        btValidateSerializePDF.UseVisualStyleBackColor = True
-        ' 
-        ' btValidateSerializeParseProps
-        ' 
-        btValidateSerializeParseProps.Location = New System.Drawing.Point(8, 74)
-        btValidateSerializeParseProps.Margin = New Padding(4, 5, 4, 5)
-        btValidateSerializeParseProps.Name = "btValidateSerializeParseProps"
-        btValidateSerializeParseProps.Size = New System.Drawing.Size(328, 35)
-        btValidateSerializeParseProps.TabIndex = 3
-        btValidateSerializeParseProps.Text = "Validate and Serialize PDF and Parse Props"
-        btValidateSerializeParseProps.UseVisualStyleBackColor = True
-        ' 
-        ' btCreateMD5Checksum
-        ' 
-        btCreateMD5Checksum.Location = New System.Drawing.Point(8, 29)
-        btCreateMD5Checksum.Margin = New Padding(4, 5, 4, 5)
-        btCreateMD5Checksum.Name = "btCreateMD5Checksum"
-        btCreateMD5Checksum.Size = New System.Drawing.Size(295, 35)
-        btCreateMD5Checksum.TabIndex = 4
-        btCreateMD5Checksum.Text = "Create MD5 Checksum for PDF"
-        btCreateMD5Checksum.UseVisualStyleBackColor = True
-        ' 
-        ' GroupBox1
-        ' 
-        GroupBox1.Controls.Add(ButtonValidateXMLOnly)
-        GroupBox1.Controls.Add(btRunJob)
-        GroupBox1.Location = New System.Drawing.Point(16, 18)
-        GroupBox1.Margin = New Padding(4, 5, 4, 5)
-        GroupBox1.Name = "GroupBox1"
-        GroupBox1.Padding = New Padding(4, 5, 4, 5)
-        GroupBox1.Size = New System.Drawing.Size(319, 116)
-        GroupBox1.TabIndex = 7
-        GroupBox1.TabStop = False
-        GroupBox1.Text = "Run Job like in eInvoice Service"
-        ' 
-        ' ButtonValidateXMLOnly
-        ' 
-        ButtonValidateXMLOnly.Location = New System.Drawing.Point(8, 74)
-        ButtonValidateXMLOnly.Margin = New Padding(4, 5, 4, 5)
-        ButtonValidateXMLOnly.Name = "ButtonValidateXMLOnly"
-        ButtonValidateXMLOnly.Size = New System.Drawing.Size(295, 35)
-        ButtonValidateXMLOnly.TabIndex = 4
-        ButtonValidateXMLOnly.Text = "Run XML Job (spez. Configuration)"
-        ButtonValidateXMLOnly.UseVisualStyleBackColor = True
-        ' 
-        ' GroupBox2
-        ' 
-        GroupBox2.Controls.Add(btValidateSerializePDF)
-        GroupBox2.Controls.Add(btExtractPDFAttachments)
-        GroupBox2.Controls.Add(btValidateSerializeParseProps)
-        GroupBox2.Location = New System.Drawing.Point(16, 144)
-        GroupBox2.Margin = New Padding(4, 5, 4, 5)
-        GroupBox2.Name = "GroupBox2"
-        GroupBox2.Padding = New Padding(4, 5, 4, 5)
-        GroupBox2.Size = New System.Drawing.Size(480, 167)
-        GroupBox2.TabIndex = 8
-        GroupBox2.TabStop = False
-        GroupBox2.Text = "Run Functions on a single file (needs Breakpoint)"
-        ' 
-        ' btExtractPDFAttachments
-        ' 
-        btExtractPDFAttachments.Location = New System.Drawing.Point(8, 118)
-        btExtractPDFAttachments.Margin = New Padding(4, 5, 4, 5)
-        btExtractPDFAttachments.Name = "btExtractPDFAttachments"
-        btExtractPDFAttachments.Size = New System.Drawing.Size(328, 35)
-        btExtractPDFAttachments.TabIndex = 3
-        btExtractPDFAttachments.Text = "Extract PDF Attachments"
-        btExtractPDFAttachments.UseVisualStyleBackColor = True
-        ' 
-        ' GroupBox3
-        ' 
-        GroupBox3.Controls.Add(btCreateMD5Checksum)
-        GroupBox3.Controls.Add(txtMD5Checksum)
-        GroupBox3.Location = New System.Drawing.Point(16, 321)
-        GroupBox3.Margin = New Padding(4, 5, 4, 5)
-        GroupBox3.Name = "GroupBox3"
-        GroupBox3.Padding = New Padding(4, 5, 4, 5)
-        GroupBox3.Size = New System.Drawing.Size(480, 131)
-        GroupBox3.TabIndex = 9
-        GroupBox3.TabStop = False
-        GroupBox3.Text = "Open PDF and calculate Checksum"
-        ' 
-        ' txtMD5Checksum
-        ' 
-        txtMD5Checksum.Location = New System.Drawing.Point(8, 75)
-        txtMD5Checksum.Margin = New Padding(4, 5, 4, 5)
-        txtMD5Checksum.Name = "txtMD5Checksum"
-        txtMD5Checksum.Size = New System.Drawing.Size(463, 27)
-        txtMD5Checksum.TabIndex = 5
-        ' 
-        ' txtPropName
-        ' 
-        txtPropName.Location = New System.Drawing.Point(8, 74)
-        txtPropName.Margin = New Padding(4, 5, 4, 5)
-        txtPropName.Name = "txtPropName"
-        txtPropName.Size = New System.Drawing.Size(463, 27)
-        txtPropName.TabIndex = 10
-        ' 
-        ' GroupBox4
-        ' 
-        GroupBox4.Controls.Add(btFindExtractXMLValue)
-        GroupBox4.Controls.Add(txtPropName)
-        GroupBox4.Location = New System.Drawing.Point(16, 462)
-        GroupBox4.Margin = New Padding(4, 5, 4, 5)
-        GroupBox4.Name = "GroupBox4"
-        GroupBox4.Padding = New Padding(4, 5, 4, 5)
-        GroupBox4.Size = New System.Drawing.Size(480, 117)
-        GroupBox4.TabIndex = 11
-        GroupBox4.TabStop = False
-        GroupBox4.Text = "GroupBox4"
-        ' 
-        ' btFindExtractXMLValue
-        ' 
-        btFindExtractXMLValue.Location = New System.Drawing.Point(8, 29)
-        btFindExtractXMLValue.Margin = New Padding(4, 5, 4, 5)
-        btFindExtractXMLValue.Name = "btFindExtractXMLValue"
-        btFindExtractXMLValue.Size = New System.Drawing.Size(295, 35)
-        btFindExtractXMLValue.TabIndex = 11
-        btFindExtractXMLValue.Text = "Find and Extract XML Path Value"
-        btFindExtractXMLValue.UseVisualStyleBackColor = True
-        ' 
-        ' GroupBox5
-        ' 
-        GroupBox5.Controls.Add(btWriteBinary)
-        GroupBox5.Location = New System.Drawing.Point(13, 589)
-        GroupBox5.Margin = New Padding(4, 5, 4, 5)
-        GroupBox5.Name = "GroupBox5"
-        GroupBox5.Padding = New Padding(4, 5, 4, 5)
-        GroupBox5.Size = New System.Drawing.Size(480, 87)
-        GroupBox5.TabIndex = 12
-        GroupBox5.TabStop = False
-        GroupBox5.Text = "GroupBox5"
-        ' 
-        ' btWriteBinary
-        ' 
-        btWriteBinary.Location = New System.Drawing.Point(8, 29)
-        btWriteBinary.Margin = New Padding(4, 5, 4, 5)
-        btWriteBinary.Name = "btWriteBinary"
-        btWriteBinary.Size = New System.Drawing.Size(295, 35)
-        btWriteBinary.TabIndex = 11
-        btWriteBinary.Text = "Write Binary to PDF"
-        btWriteBinary.UseVisualStyleBackColor = True
-        ' 
-        ' OpenFileDialog2
-        ' 
-        OpenFileDialog2.FileName = "OpenFileDialog2"
-        OpenFileDialog2.Filter = "XML files (*.xml)|*.xml"
-
-        ' 
-        ' Form1
-        ' 
-        AutoScaleDimensions = New System.Drawing.SizeF(8.0F, 20.0F)
-        AutoScaleMode = AutoScaleMode.Font
-        ClientSize = New System.Drawing.Size(879, 690)
-
-        Controls.Add(GroupBox5)
-        Controls.Add(GroupBox4)
-        Controls.Add(GroupBox3)
-        Controls.Add(GroupBox2)
-        Controls.Add(GroupBox1)
-        Controls.Add(ListBox1)
-        Margin = New Padding(4, 5, 4, 5)
-        Name = "Form1"
-        Text = "E-Invoice-TEST-Tool"
-        GroupBox1.ResumeLayout(False)
-        GroupBox2.ResumeLayout(False)
-        GroupBox3.ResumeLayout(False)
-        GroupBox3.PerformLayout()
-        GroupBox4.ResumeLayout(False)
-        GroupBox4.PerformLayout()
-        GroupBox5.ResumeLayout(False)
-        ResumeLayout(False)
+        Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog()
+        Me.btRunJob = New System.Windows.Forms.Button()
+        Me.ListBox1 = New System.Windows.Forms.ListBox()
+        Me.btValidateSerializePDF = New System.Windows.Forms.Button()
+        Me.btValidateSerializeParseProps = New System.Windows.Forms.Button()
+        Me.btCreateMD5Checksum = New System.Windows.Forms.Button()
+        Me.GroupBox1 = New System.Windows.Forms.GroupBox()
+        Me.ButtonValidateXMLOnly = New System.Windows.Forms.Button()
+        Me.GroupBox2 = New System.Windows.Forms.GroupBox()
+        Me.btExtractPDFAttachments = New System.Windows.Forms.Button()
+        Me.GroupBox3 = New System.Windows.Forms.GroupBox()
+        Me.txtMD5Checksum = New System.Windows.Forms.TextBox()
+        Me.txtPropName = New System.Windows.Forms.TextBox()
+        Me.GroupBox4 = New System.Windows.Forms.GroupBox()
+        Me.btFindExtractXMLValue = New System.Windows.Forms.Button()
+        Me.FolderBrowserDialog1 = New System.Windows.Forms.FolderBrowserDialog()
+        Me.GroupBox5 = New System.Windows.Forms.GroupBox()
+        Me.btWriteBinary = New System.Windows.Forms.Button()
+        Me.OpenFileDialog2 = New System.Windows.Forms.OpenFileDialog()
+        Me.Button1 = New System.Windows.Forms.Button()
+        Me.GroupBox1.SuspendLayout()
+        Me.GroupBox2.SuspendLayout()
+        Me.GroupBox3.SuspendLayout()
+        Me.GroupBox4.SuspendLayout()
+        Me.GroupBox5.SuspendLayout()
+        Me.SuspendLayout()
+        '
+        'OpenFileDialog1
+        '
+        Me.OpenFileDialog1.FileName = "OpenFileDialog1"
+        '
+        'btRunJob
+        '
+        Me.btRunJob.Location = New System.Drawing.Point(6, 19)
+        Me.btRunJob.Name = "btRunJob"
+        Me.btRunJob.Size = New System.Drawing.Size(221, 23)
+        Me.btRunJob.TabIndex = 0
+        Me.btRunJob.Text = "Run Job"
+        Me.btRunJob.UseVisualStyleBackColor = True
+        '
+        'ListBox1
+        '
+        Me.ListBox1.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
+            Or System.Windows.Forms.AnchorStyles.Left) _
+            Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
+        Me.ListBox1.FormattingEnabled = True
+        Me.ListBox1.Location = New System.Drawing.Point(430, 7)
+        Me.ListBox1.Name = "ListBox1"
+        Me.ListBox1.Size = New System.Drawing.Size(498, 433)
+        Me.ListBox1.TabIndex = 1
+        '
+        'btValidateSerializePDF
+        '
+        Me.btValidateSerializePDF.Location = New System.Drawing.Point(6, 19)
+        Me.btValidateSerializePDF.Name = "btValidateSerializePDF"
+        Me.btValidateSerializePDF.Size = New System.Drawing.Size(246, 23)
+        Me.btValidateSerializePDF.TabIndex = 2
+        Me.btValidateSerializePDF.Text = "Validate and Serialize PDF"
+        Me.btValidateSerializePDF.UseVisualStyleBackColor = True
+        '
+        'btValidateSerializeParseProps
+        '
+        Me.btValidateSerializeParseProps.Location = New System.Drawing.Point(6, 48)
+        Me.btValidateSerializeParseProps.Name = "btValidateSerializeParseProps"
+        Me.btValidateSerializeParseProps.Size = New System.Drawing.Size(246, 23)
+        Me.btValidateSerializeParseProps.TabIndex = 3
+        Me.btValidateSerializeParseProps.Text = "Validate and Serialize PDF and Parse Props"
+        Me.btValidateSerializeParseProps.UseVisualStyleBackColor = True
+        '
+        'btCreateMD5Checksum
+        '
+        Me.btCreateMD5Checksum.Location = New System.Drawing.Point(6, 19)
+        Me.btCreateMD5Checksum.Name = "btCreateMD5Checksum"
+        Me.btCreateMD5Checksum.Size = New System.Drawing.Size(221, 23)
+        Me.btCreateMD5Checksum.TabIndex = 4
+        Me.btCreateMD5Checksum.Text = "Create MD5 Checksum for PDF"
+        Me.btCreateMD5Checksum.UseVisualStyleBackColor = True
+        '
+        'GroupBox1
+        '
+        Me.GroupBox1.Controls.Add(Me.ButtonValidateXMLOnly)
+        Me.GroupBox1.Controls.Add(Me.btRunJob)
+        Me.GroupBox1.Location = New System.Drawing.Point(12, 12)
+        Me.GroupBox1.Name = "GroupBox1"
+        Me.GroupBox1.Size = New System.Drawing.Size(239, 75)
+        Me.GroupBox1.TabIndex = 7
+        Me.GroupBox1.TabStop = False
+        Me.GroupBox1.Text = "Run Job like in eInvoice Service"
+        '
+        'ButtonValidateXMLOnly
+        '
+        Me.ButtonValidateXMLOnly.Location = New System.Drawing.Point(6, 48)
+        Me.ButtonValidateXMLOnly.Name = "ButtonValidateXMLOnly"
+        Me.ButtonValidateXMLOnly.Size = New System.Drawing.Size(221, 23)
+        Me.ButtonValidateXMLOnly.TabIndex = 4
+        Me.ButtonValidateXMLOnly.Text = "Run XML Job (spez. Configuration)"
+        Me.ButtonValidateXMLOnly.UseVisualStyleBackColor = True
+        '
+        'GroupBox2
+        '
+        Me.GroupBox2.Controls.Add(Me.btValidateSerializePDF)
+        Me.GroupBox2.Controls.Add(Me.btExtractPDFAttachments)
+        Me.GroupBox2.Controls.Add(Me.btValidateSerializeParseProps)
+        Me.GroupBox2.Location = New System.Drawing.Point(12, 94)
+        Me.GroupBox2.Name = "GroupBox2"
+        Me.GroupBox2.Size = New System.Drawing.Size(360, 109)
+        Me.GroupBox2.TabIndex = 8
+        Me.GroupBox2.TabStop = False
+        Me.GroupBox2.Text = "Run Functions on a single file (needs Breakpoint)"
+        '
+        'btExtractPDFAttachments
+        '
+        Me.btExtractPDFAttachments.Location = New System.Drawing.Point(6, 77)
+        Me.btExtractPDFAttachments.Name = "btExtractPDFAttachments"
+        Me.btExtractPDFAttachments.Size = New System.Drawing.Size(246, 23)
+        Me.btExtractPDFAttachments.TabIndex = 3
+        Me.btExtractPDFAttachments.Text = "Extract PDF Attachments"
+        Me.btExtractPDFAttachments.UseVisualStyleBackColor = True
+        '
+        'GroupBox3
+        '
+        Me.GroupBox3.Controls.Add(Me.btCreateMD5Checksum)
+        Me.GroupBox3.Controls.Add(Me.txtMD5Checksum)
+        Me.GroupBox3.Location = New System.Drawing.Point(12, 209)
+        Me.GroupBox3.Name = "GroupBox3"
+        Me.GroupBox3.Size = New System.Drawing.Size(360, 85)
+        Me.GroupBox3.TabIndex = 9
+        Me.GroupBox3.TabStop = False
+        Me.GroupBox3.Text = "Open PDF and calculate Checksum"
+        '
+        'txtMD5Checksum
+        '
+        Me.txtMD5Checksum.Location = New System.Drawing.Point(6, 49)
+        Me.txtMD5Checksum.Name = "txtMD5Checksum"
+        Me.txtMD5Checksum.Size = New System.Drawing.Size(348, 20)
+        Me.txtMD5Checksum.TabIndex = 5
+        '
+        'txtPropName
+        '
+        Me.txtPropName.Location = New System.Drawing.Point(6, 48)
+        Me.txtPropName.Name = "txtPropName"
+        Me.txtPropName.Size = New System.Drawing.Size(348, 20)
+        Me.txtPropName.TabIndex = 10
+        '
+        'GroupBox4
+        '
+        Me.GroupBox4.Controls.Add(Me.btFindExtractXMLValue)
+        Me.GroupBox4.Controls.Add(Me.txtPropName)
+        Me.GroupBox4.Location = New System.Drawing.Point(12, 300)
+        Me.GroupBox4.Name = "GroupBox4"
+        Me.GroupBox4.Size = New System.Drawing.Size(360, 76)
+        Me.GroupBox4.TabIndex = 11
+        Me.GroupBox4.TabStop = False
+        Me.GroupBox4.Text = "GroupBox4"
+        '
+        'btFindExtractXMLValue
+        '
+        Me.btFindExtractXMLValue.Location = New System.Drawing.Point(6, 19)
+        Me.btFindExtractXMLValue.Name = "btFindExtractXMLValue"
+        Me.btFindExtractXMLValue.Size = New System.Drawing.Size(221, 23)
+        Me.btFindExtractXMLValue.TabIndex = 11
+        Me.btFindExtractXMLValue.Text = "Find and Extract XML Path Value"
+        Me.btFindExtractXMLValue.UseVisualStyleBackColor = True
+        '
+        'GroupBox5
+        '
+        Me.GroupBox5.Controls.Add(Me.btWriteBinary)
+        Me.GroupBox5.Location = New System.Drawing.Point(10, 383)
+        Me.GroupBox5.Name = "GroupBox5"
+        Me.GroupBox5.Size = New System.Drawing.Size(360, 57)
+        Me.GroupBox5.TabIndex = 12
+        Me.GroupBox5.TabStop = False
+        Me.GroupBox5.Text = "GroupBox5"
+        '
+        'btWriteBinary
+        '
+        Me.btWriteBinary.Location = New System.Drawing.Point(6, 19)
+        Me.btWriteBinary.Name = "btWriteBinary"
+        Me.btWriteBinary.Size = New System.Drawing.Size(221, 23)
+        Me.btWriteBinary.TabIndex = 11
+        Me.btWriteBinary.Text = "Write Binary to PDF"
+        Me.btWriteBinary.UseVisualStyleBackColor = True
+        '
+        'OpenFileDialog2
+        '
+        Me.OpenFileDialog2.FileName = "OpenFileDialog2"
+        Me.OpenFileDialog2.Filter = "XML files (*.xml)|*.xml"
+        '
+        'Button1
+        '
+        Me.Button1.Location = New System.Drawing.Point(257, 31)
+        Me.Button1.Name = "Button1"
+        Me.Button1.Size = New System.Drawing.Size(115, 23)
+        Me.Button1.TabIndex = 13
+        Me.Button1.Text = "Open Log"
+        Me.Button1.UseVisualStyleBackColor = True
+        '
+        'Form1
+        '
+        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
+        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
+        Me.ClientSize = New System.Drawing.Size(937, 448)
+        Me.Controls.Add(Me.Button1)
+        Me.Controls.Add(Me.GroupBox5)
+        Me.Controls.Add(Me.GroupBox4)
+        Me.Controls.Add(Me.GroupBox3)
+        Me.Controls.Add(Me.GroupBox2)
+        Me.Controls.Add(Me.GroupBox1)
+        Me.Controls.Add(Me.ListBox1)
+        Me.Name = "Form1"
+        Me.Text = "E-Invoice-TEST-Tool"
+        Me.GroupBox1.ResumeLayout(False)
+        Me.GroupBox2.ResumeLayout(False)
+        Me.GroupBox3.ResumeLayout(False)
+        Me.GroupBox3.PerformLayout()
+        Me.GroupBox4.ResumeLayout(False)
+        Me.GroupBox4.PerformLayout()
+        Me.GroupBox5.ResumeLayout(False)
+        Me.ResumeLayout(False)
 
     End Sub
 
@@ -277,4 +265,5 @@ Partial Class Form1
     Friend WithEvents btWriteBinary As Button
     Friend WithEvents ButtonValidateXMLOnly As Button
     Friend WithEvents OpenFileDialog2 As OpenFileDialog
+    Friend WithEvents Button1 As Button
 End Class
diff --git a/GUIs.Test.ZUGFeRDTest/Form1.resx b/GUIs.Test.ZUGFeRDTest/Form1.resx
index 6ab56a3c..df26c39c 100644
--- a/GUIs.Test.ZUGFeRDTest/Form1.resx
+++ b/GUIs.Test.ZUGFeRDTest/Form1.resx
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
-  <!--
-    Microsoft ResX Schema
-
+  <!-- 
+    Microsoft ResX Schema 
+    
     Version 2.0
-
-    The primary goals of this format is to allow a simple XML format
-    that is mostly human readable. The generation and parsing of the
-    various data types are done through the TypeConverter classes
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
     associated with the data types.
-
+    
     Example:
-
+    
     ... ado.net/XML headers & schema ...
     <resheader name="resmimetype">text/microsoft-resx</resheader>
     <resheader name="version">2.0</resheader>
@@ -26,36 +26,36 @@
         <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
         <comment>This is a comment</comment>
     </data>
-
-    There are any number of "resheader" rows that contain simple
+                
+    There are any number of "resheader" rows that contain simple 
     name/value pairs.
-
-    Each data row contains a name, and value. The row also contains a
-    type or mimetype. Type corresponds to a .NET class that support
-    text/value conversion through the TypeConverter architecture.
-    Classes that don't support this are serialized and stored with the
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
     mimetype set.
-
-    The mimetype is used for serialized objects, and tells the
-    ResXResourceReader how to depersist the object. This is currently not
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
     extensible. For a given mimetype the value must be set accordingly:
-
-    Note - application/x-microsoft.net.object.binary.base64 is the format
-    that the ResXResourceWriter will generate, however the reader can
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
     read any of the formats listed below.
-
+    
     mimetype: application/x-microsoft.net.object.binary.base64
-    value   : The object must be serialized with
+    value   : The object must be serialized with 
             : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
             : and then encoded with base64 encoding.
-
+    
     mimetype: application/x-microsoft.net.object.soap.base64
-    value   : The object must be serialized with
+    value   : The object must be serialized with 
             : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
             : and then encoded with base64 encoding.
 
     mimetype: application/x-microsoft.net.object.bytearray.base64
-    value   : The object must be serialized into a byte array
+    value   : The object must be serialized into a byte array 
             : using a System.ComponentModel.TypeConverter
             : and then encoded with base64 encoding.
     -->
diff --git a/GUIs.Test.ZUGFeRDTest/Form1.vb b/GUIs.Test.ZUGFeRDTest/Form1.vb
index 3678c190..a1b94f59 100644
--- a/GUIs.Test.ZUGFeRDTest/Form1.vb
+++ b/GUIs.Test.ZUGFeRDTest/Form1.vb
@@ -216,6 +216,12 @@ Public Class Form1
             oResult = FolderBrowserDialog1.ShowDialog()
             oInputPath = FolderBrowserDialog1.SelectedPath
         End If
+        Dim xmlFiles = Directory.GetFiles(oInputPath, "*.xml")
+        Dim pdfFiles = Directory.GetFiles(oInputPath, "*.pdf")
+        If xmlFiles.Length = 0 AndAlso pdfFiles.Length = 0 Then
+            MessageBox.Show($"Keine XML- oder PDF-Dateien in {oInputPath} gefunden!")
+            Return
+        End If
 
         If oResult = DialogResult.OK Then
             Dim args As New WorkerArgs() With {
@@ -238,6 +244,7 @@ Public Class Form1
             Dim job As New ImportZUGFeRDFiles(_logConfig, _mssql)
 
             job.Start(args)
+
         End If
     End Sub
 
@@ -414,6 +421,10 @@ Public Class Form1
 
     End Function
 
+    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
+        Process.Start("explorer.exe", _logConfig.LogDirectory)
+    End Sub
+
     'Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
     '    Process.Start("explorer.exe", _logConfig.LogDirectory)
     'End Sub
diff --git a/GUIs.Test.ZUGFeRDTest/ZUGFeRDTest.vbproj b/GUIs.Test.ZUGFeRDTest/ZUGFeRDTest.vbproj
index 45cf3ba9..8b3ddbb6 100644
--- a/GUIs.Test.ZUGFeRDTest/ZUGFeRDTest.vbproj
+++ b/GUIs.Test.ZUGFeRDTest/ZUGFeRDTest.vbproj
@@ -17,7 +17,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="GdPicture" Version="14.3.3" />
+    <PackageReference Include="GdPicture" Version="14.4.4" />
     <PackageReference Include="Microsoft.Data.SqlClient" Version="7.0.1" />
     <PackageReference Include="NLog" Version="5.0.5" />
   </ItemGroup>
diff --git a/Services.ZUGFeRDService/DDZUGFeRDService.vbproj b/Services.ZUGFeRDService/DDZUGFeRDService.vbproj
index eb36d078..15c2b124 100644
--- a/Services.ZUGFeRDService/DDZUGFeRDService.vbproj
+++ b/Services.ZUGFeRDService/DDZUGFeRDService.vbproj
@@ -60,8 +60,7 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\DDModules\Database\bin\Debug\DigitalData.Modules.Database.dll</HintPath>
     </Reference>
-    <Reference Include="DigitalData.Modules.Interfaces, Version=2.2.6.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
+    <Reference Include="DigitalData.Modules.Interfaces">
       <HintPath>..\..\DDModules\Interfaces\bin\Debug\DigitalData.Modules.Interfaces.dll</HintPath>
     </Reference>
     <Reference Include="DigitalData.Modules.Jobs, Version=2.8.1.0, Culture=neutral, processorArchitecture=MSIL">
diff --git a/Services.ZUGFeRDService/packages.config b/Services.ZUGFeRDService/packages.config
index 37cb9210..ce98cd21 100644
--- a/Services.ZUGFeRDService/packages.config
+++ b/Services.ZUGFeRDService/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="NLog" version="5.0.5" targetFramework="net461" />
+  <package id="NLog" version="5.0.5" targetFramework="net462" />
 </packages>
\ No newline at end of file