Remove Debug Info from Release Builds

Fixes #642 #648

installer/additional_files/readme.txt

@@ -7,9 +7,10 @@ CHANGE LOG:
 
 All details to our tickets can be found here: https://greenshot.atlassian.net
 
-# Greenshot 1.x.xxx
+# Greenshot 1.3.xxx
 
 Bugs fixed:
+* greenshot.ini: Exclude Plugins and Include Plugins setting broken [#648](https://github.com/greenshot/greenshot/issues/648) [#642](https://github.com/greenshot/greenshot/issues/642) thanks to @Christian-Schulz for providing the fix
 
 Features added:
 
@@ -668,3 +669,4 @@ Features added:
 * created textboxes can now be edited with a doubleclick [ 1704408 ]
 * selected font is now stored in the application config file [ 1704411 ]
 
+

src/Greenshot.Base/Greenshot.Base.csproj

@@ -3,6 +3,10 @@
   <PropertyGroup>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Dapplo.HttpExtensions.JsonNet" Version="1.1.2" />

src/Greenshot.Base/Interfaces/Plugin/AssemblyPluginIdentifierAttribute.cs

@@ -0,0 +1,46 @@
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2025 Thomas Braun, Jens Klingen, Robin Krom
+ * 
+ * For more information see: https://getgreenshot.org/
+ * The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+using System;
+
+namespace Greenshot.Base.Interfaces.Plugin
+{
+    /// <summary>
+    /// Attribute to specify a custom plugin identifier at assembly level
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Assembly, AllowMultiple = false)]
+    public class AssemblyPluginIdentifierAttribute : Attribute
+    {
+        /// <summary>
+        /// The identifier used for the plugin in configuration
+        /// </summary>
+        public string Identifier { get; }
+
+        /// <summary>
+        /// Constructor for the plugin identifier attribute
+        /// </summary>
+        /// <param name="identifier">The identifier for the plugin in configuration</param>
+        public AssemblyPluginIdentifierAttribute(string identifier)
+        {
+            Identifier = identifier;
+        }
+    }
+}

src/Greenshot.Editor/Greenshot.Editor.csproj

@@ -2,6 +2,10 @@
   <PropertyGroup>
     <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
   </PropertyGroup>
+    <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+      <DebugType>none</DebugType>
+      <DebugSymbols>false</DebugSymbols>
+    </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Box/Greenshot.Plugin.Box.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Box/Properties/AssemblyInfo.cs

@@ -21,11 +21,13 @@
 
 using System.Reflection;
 using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
 
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyDescription("A plugin to upload images to Box")]
+[assembly: AssemblyPluginIdentifier("Box Plugin")]
 
 // This sets the default COM visibility of types in the assembly to invisible.
 // If you need to expose a type to COM, use [ComVisible(true)] on that type.

src/Greenshot.Plugin.Confluence/Greenshot.Plugin.Confluence.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Confluence/Properties/AssemblyInfo.cs

@@ -0,0 +1,34 @@
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2021 Thomas Braun, Jens Klingen, Robin Krom, Francis Noel
+ * 
+ * For more information see: https://getgreenshot.org/
+ * The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+using System.Reflection;
+using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyDescription("A plugin to upload images to Confluence")]
+[assembly: AssemblyPluginIdentifier("Confluence Plugin")]
+
+// This sets the default COM visibility of types in the assembly to invisible.
+// If you need to expose a type to COM, use [ComVisible(true)] on that type.
+[assembly: ComVisible(false)]

src/Greenshot.Plugin.Dropbox/Greenshot.Plugin.Dropbox.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Dropbox/Properties/AssemblyInfo.cs

@@ -21,11 +21,13 @@
 
 using System.Reflection;
 using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
 
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyDescription("A plugin to upload images to Dropbox")]
+[assembly: AssemblyPluginIdentifier("Dropbox Plugin")]
 
 // This sets the default COM visibility of types in the assembly to invisible.
 // If you need to expose a type to COM, use [ComVisible(true)] on that type.

src/Greenshot.Plugin.ExternalCommand/Greenshot.Plugin.ExternalCommand.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.ExternalCommand/Properties/AssemblyInfo.cs

@@ -0,0 +1,34 @@
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2025 Thomas Braun, Jens Klingen, Robin Krom, Francis Noel
+ * 
+ * For more information see: https://getgreenshot.org/
+ * The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+using System.Reflection;
+using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyDescription("A plugin to send screenshots to other applications")]
+[assembly: AssemblyPluginIdentifier("External command Plugin")]
+
+// This sets the default COM visibility of types in the assembly to invisible.
+// If you need to expose a type to COM, use [ComVisible(true)] on that type.
+[assembly: ComVisible(false)]

src/Greenshot.Plugin.Flickr/Greenshot.Plugin.Flickr.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Flickr/Properties/AssemblyInfo.cs

@@ -21,11 +21,13 @@
 
 using System.Reflection;
 using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
 
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyDescription("A plugin to upload images to Flickr")]
+[assembly: AssemblyPluginIdentifier("Flickr Plugin")]
 
 // This sets the default COM visibility of types in the assembly to invisible.
 // If you need to expose a type to COM, use [ComVisible(true)] on that type.

src/Greenshot.Plugin.GooglePhotos/Greenshot.Plugin.GooglePhotos.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.GooglePhotos/Properties/AssemblyInfo.cs

@@ -21,12 +21,17 @@
 
 using System.Reflection;
 using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
 
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyDescription("A plugin to upload images to GooglePhotos")]
 
+// Still using the old name 'Picasa-Web Plugin' as identifier for backwards compatibility
+// TODO: replace plugin identifier with "GooglePhotos Plugin" in the future
+[assembly: AssemblyPluginIdentifier("Picasa-Web Plugin")]
+
 // This sets the default COM visibility of types in the assembly to invisible.
 // If you need to expose a type to COM, use [ComVisible(true)] on that type.
 [assembly: ComVisible(false)]

src/Greenshot.Plugin.Imgur/Greenshot.Plugin.Imgur.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Imgur/Properties/AssemblyInfo.cs

@@ -21,11 +21,13 @@
 
 using System.Reflection;
 using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
 
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyDescription("A plugin to upload images to Imgur")]
+[assembly: AssemblyPluginIdentifier("Imgur Plugin")]
 
 // This sets the default COM visibility of types in the assembly to invisible.
 // If you need to expose a type to COM, use [ComVisible(true)] on that type.

src/Greenshot.Plugin.Jira/Greenshot.Plugin.Jira.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Jira/Properties/AssemblyInfo.cs

@@ -0,0 +1,34 @@
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2025 Thomas Braun, Jens Klingen, Robin Krom, Francis Noel
+ * 
+ * For more information see: https://getgreenshot.org/
+ * The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+using System.Reflection;
+using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyDescription("A plugin to upload images to Jira")]
+[assembly: AssemblyPluginIdentifier("Jira Plugin")]
+
+// This sets the default COM visibility of types in the assembly to invisible.
+// If you need to expose a type to COM, use [ComVisible(true)] on that type.
+[assembly: ComVisible(false)]

src/Greenshot.Plugin.Office/Greenshot.Plugin.Office.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Office/Properties/AssemblyInfo.cs

@@ -21,11 +21,13 @@
 
 using System.Reflection;
 using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
 
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyDescription("A plugin to export images to Office applications")]
+[assembly: AssemblyPluginIdentifier("Office Plugin")]
 
 // This sets the default COM visibility of types in the assembly to invisible.
 // If you need to expose a type to COM, use [ComVisible(true)] on that type.

src/Greenshot.Plugin.Photobucket/Greenshot.Plugin.Photobucket.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Photobucket/Properties/AssemblyInfo.cs

@@ -21,12 +21,14 @@
 
 using System.Reflection;
 using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
 
 
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyDescription("A plugin to upload images to Photobucket")]
+[assembly: AssemblyPluginIdentifier("Photobucket Plugin")]
 
 // This sets the default COM visibility of types in the assembly to invisible.
 // If you need to expose a type to COM, use [ComVisible(true)] on that type.

src/Greenshot.Plugin.Win10/Greenshot.Plugin.Win10.csproj

@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
   <ItemGroup>
     <None Include="Languages\language*.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

src/Greenshot.Plugin.Win10/Properties/AssemblyInfo.cs

@@ -1,10 +1,33 @@
-using System.Reflection;
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2025 Thomas Braun, Jens Klingen, Robin Krom
+ *
+ * For more information see: https://getgreenshot.org/
+ * The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+using System.Reflection;
 using System.Runtime.InteropServices;
+using Greenshot.Base.Interfaces.Plugin;
 
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyDescription("A plug-in for Windows 10 only functionality")]
+[assembly: AssemblyPluginIdentifier("Win10 Plugin")]
 
 // Setting ComVisible to false makes the types in this assembly not visible 
 // to COM components.  If you need to access a type in this assembly from 

src/Greenshot/Greenshot.csproj

@@ -9,6 +9,10 @@
 	<EmbeddedResourceUseDependentUponConvention>false</EmbeddedResourceUseDependentUponConvention>
 	<EnableDefaultEmbeddedResourceItems>false</EnableDefaultEmbeddedResourceItems>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
 
   <ItemGroup>
     <None Include="Languages\language*.xml">

src/Greenshot/Helpers/PluginHelper.cs

@@ -219,17 +219,14 @@ namespace Greenshot.Helpers
                 {
                     var assembly = Assembly.LoadFrom(pluginFile);
 
-                    var assemblyName = assembly.GetName().Name;
+                    if (IsPluginExcludedByConfig(assembly, pluginFile) ) 
-
-                    var pluginEntryName = $"{assemblyName}.{assemblyName.Replace("Greenshot.Plugin.", string.Empty)}Plugin";
-                    var pluginEntryType = assembly.GetType(pluginEntryName, false, true);
-
-                    if (CoreConfig.ExcludePlugins != null && CoreConfig.ExcludePlugins.Contains(pluginEntryName))
                     {
-                        Log.WarnFormat("Exclude list: {0}", string.Join(",", CoreConfig.ExcludePlugins));
-                        Log.WarnFormat("Skipping the excluded plugin {0} with version {1} from {2}", pluginEntryName, assembly.GetName().Version, pluginFile);
                         continue;
                     }
+                    
+                    var assemblyName = assembly.GetName().Name;
+                    var pluginEntryName = $"{assemblyName}.{assemblyName.Replace("Greenshot.Plugin.", string.Empty)}Plugin";
+                    var pluginEntryType = assembly.GetType(pluginEntryName, false, true);
 
                     var plugin = (IGreenshotPlugin) Activator.CreateInstance(pluginEntryType);
                     if (plugin != null)
@@ -255,5 +252,54 @@ namespace Greenshot.Helpers
                 }
             }
         }
+        /// <summary>
+        /// This method checks the plugin against the configured include and exclude plugin
+        /// lists. If a plugin is excluded, a warning is logged with details about the exclusion.
+        /// </summary>
+        private bool IsPluginExcludedByConfig(Assembly assembly, string pluginFile)
+        {
+            // Get plugin identifier from assembly attributes
+            string pluginConfigIdentifier = GetPluginIdentifier(assembly, pluginFile);
+
+            if (CoreConfig.IncludePlugins is { } includePlugins
+                && includePlugins.Count(p => !string.IsNullOrWhiteSpace(p)) > 0 // ignore empty entries i.e. a whitespace
+                && !includePlugins.Contains(pluginConfigIdentifier))
+            {
+                Log.WarnFormat("Include plugin list: {0}", string.Join(",", includePlugins));
+                Log.WarnFormat("Skipping the not included plugin '{0}' with version {1} from {2}", pluginConfigIdentifier, assembly.GetName().Version, pluginFile);
+                return true;
+            }
+
+            if (CoreConfig.ExcludePlugins is { } excludePlugins
+                && excludePlugins.Contains(pluginConfigIdentifier))
+            {
+                Log.WarnFormat("Exclude plugin list: {0}", string.Join(",", excludePlugins));
+                Log.WarnFormat("Skipping the excluded plugin '{0}' with version {1} from {2}", pluginConfigIdentifier, assembly.GetName().Version, pluginFile);
+                return true;
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// Retrieves the plugin identifier for the specified assembly.
+        /// </summary>
+        private string GetPluginIdentifier(Assembly assembly, string pluginFile)
+        {
+            // Try to find PluginIdentifierAttribute
+            var attribute = assembly
+                .GetCustomAttributes<AssemblyPluginIdentifierAttribute>()
+                .FirstOrDefault();
+
+            if (!string.IsNullOrEmpty(attribute?.Identifier))
+            {
+               return attribute.Identifier;
+            }
+
+            // If no attribute found, fall back to the sub namespace
+            var pluginSubNamespace = assembly.GetName().Name.Replace("Greenshot.Plugin.", string.Empty);
+            Log.WarnFormat("No '{0}' found in '{1}'. Use plugin namespace '{2}' as fallback.", nameof(AssemblyPluginIdentifierAttribute), pluginFile, pluginSubNamespace);
+            return pluginSubNamespace;
+        }
     }
 }