diff --git a/.github/workflows/dtkgui-archlinux-build.yml b/.github/workflows/dtkgui-archlinux-build.yml
index 7976b916..19ef4285 100644
--- a/.github/workflows/dtkgui-archlinux-build.yml
+++ b/.github/workflows/dtkgui-archlinux-build.yml
@@ -33,7 +33,7 @@ jobs:
             qt5-base qt5-tools qt5-wayland qt5-svg qt5-imageformats \
             extra-cmake-modules \
             gtest \
-            librsvg libraw \
+            librsvg \
             libqt5xdg \
             icu uchardet dbus spdlog gsettings-qt \
             dtkcommon dtklog \
@@ -46,7 +46,7 @@ jobs:
             qt6-base qt6-tools qt6-wayland qt6-svg qt6-imageformats \
             extra-cmake-modules \
             gtest \
-            librsvg libraw \
+            librsvg \
             libqtxdg \
             icu uchardet dbus spdlog \
             dtkcommon dtk6log \
diff --git a/archlinux/PKGBUILD b/archlinux/PKGBUILD
index 1189cabe..fb557949 100644
--- a/archlinux/PKGBUILD
+++ b/archlinux/PKGBUILD
@@ -9,9 +9,7 @@ pkgdesc='Deepin Toolkit, gui module for DDE look and feel'
 arch=('x86_64' 'aarch64')
 url="https://github.com/linuxdeepin/dtkgui"
 license=('LGPL3')
-depends=('dtkcore-git' 'dtkcommon-git' 'qt5-svg' 'libqtxdg' 'freeimage' 'librsvg' 'qt5-wayland')
-# INFO: you can disable freeimage not to support RAW images
-# Then set DTK_DISABLE_EX_IMAGE_FORMAT=OFF
+depends=('dtkcore-git' 'dtkcommon-git' 'qt5-svg' 'libqtxdg' 'librsvg' 'qt5-wayland')
 makedepends=('git' 'qt5-tools' 'gtest' 'gmock' 'ninja' 'cmake' 'doxygen' 'extra-cmake-modules')
 conflicts=('dtkgui')
 provides=('dtkgui')
@@ -30,8 +28,6 @@ build() {
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DDTK5=ON
     ninja
-    # INFO: Another cmake option is DTK_DISABLE_EX_IMAGE_FORMAT
-    # If you not want to support RAW images, set it to off
 }
 
 package() {
diff --git a/debian/control b/debian/control
index b159bfa6..08816240 100644
--- a/debian/control
+++ b/debian/control
@@ -9,8 +9,6 @@ Build-Depends: debhelper-compat (= 12),
     libgmock-dev,
     libdtkcommon-dev,
     librsvg2-dev,
-    libfreeimage-dev,
-    libraw-dev,
     treeland-protocols (>>0.5.8),
     extra-cmake-modules,
     libdtkdata,
diff --git a/docs/src/dimagehandler.zh_CN.dox b/docs/src/dimagehandler.zh_CN.dox
index 889d6c04..ecedb746 100644
--- a/docs/src/dimagehandler.zh_CN.dox
+++ b/docs/src/dimagehandler.zh_CN.dox
@@ -13,15 +13,17 @@ dimagehandler.h 提供图像处理类 DImageHandler
 取得图片数据，通过 `DImageHandler::thumbnail` 取得图片缩略图。设置文件路径将不会立即加载图片，
 将在需要图片数据时读取，当不需要缓存数据时，可通过 `DImageHandler::clearCache` 清除缓存数据。
 
+@warning 该类已废弃，将在后续版本中移除。请使用 QImageReader/QImageWriter
+或其它图像处理库代替。拓展图片格式支持默认已关闭。
+
 @note 拓展的图片格式依赖 FreeImage 和 LibRaw 公共库，DImageHandler 通过动态加载的方式解析公共库接口。
 可通过 DImageHandler::supportFormats() 获取当前支持的图片格式类型。
 
 ## 编译
-支持拓展的图片格式，编译时会判断环境是否存在依赖包，安装 libfreeimage-dev 及 libraw-dev ，
-设置编译选项 DTK_DISABLE_EX_IMAGE_FORMAT=OFF 后将开启拓展图片格式支持。
+拓展的图片格式依赖 FreeImage 和 LibRaw 公共库，DImageHandler 通过动态加载的方式解析公共库接口。
 
-不同包构建环境默认策略不同，在 **debian** 和 **linglong** 构建环境默认依赖 libfreeimage-dev 及 libraw-dev ，
-支持拓展图片格式，其它环境需手动安装。
+自 6.7.50 起，编译选项 DTK_DISABLE_EX_IMAGE_FORMAT 默认开启，即默认 **不** 启用拓展图片格式。
+如需启用，需安装 libfreeimage-dev 及 libraw-dev ，并显式设置编译选项 DTK_DISABLE_EX_IMAGE_FORMAT=OFF 。
 
 ## image-handler 工具示例
 可在程序根目录 ./tools/image-handler 中查看 image-handler 工具项目。
diff --git a/dtkgui.cmake b/dtkgui.cmake
index 50d374b2..ca44df8f 100644
--- a/dtkgui.cmake
+++ b/dtkgui.cmake
@@ -19,7 +19,8 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 # Set build option
 option(DTK_DISABLE_LIBXDG "Disable libxdg" OFF)
 option(DTK_DISABLE_LIBRSVG "Disable librsvg" OFF)
-option(DTK_DISABLE_EX_IMAGE_FORMAT "Disable libraw and freeimage" OFF)
+# DImageHandler is deprecated, disable libraw and freeimage by default.
+option(DTK_DISABLE_EX_IMAGE_FORMAT "Disable libraw and freeimage" ON)
 
 set(CMAKE_CXX_STANDARD 17)
 
diff --git a/include/util/dimagehandler.h b/include/util/dimagehandler.h
index 82232c9c..e81d2184 100644
--- a/include/util/dimagehandler.h
+++ b/include/util/dimagehandler.h
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2022 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2022 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: LGPL-3.0-or-later
 
@@ -14,7 +14,18 @@
 DGUI_BEGIN_NAMESPACE
 
 class DImageHandlerPrivate;
-class DImageHandler : public QObject, public DTK_CORE_NAMESPACE::DObject
+
+/*!
+ * \brief The DImageHandler class provides image reading, saving, rotating and
+ *  filtering operations.
+ *
+ * \deprecated This class is deprecated and will be removed in the future.
+ *  The extended image formats support based on FreeImage and LibRaw is
+ *  disabled by default. Please use QImageReader/QImageWriter or other
+ *  image libraries instead.
+ */
+class D_DECL_DEPRECATED_X("DImageHandler is deprecated, please use QImageReader/QImageWriter or other image libraries instead.")
+    DImageHandler : public QObject, public DTK_CORE_NAMESPACE::DObject
 {
     Q_OBJECT
 
diff --git a/linglong.yaml b/linglong.yaml
index 7d4f97ca..3efcf111 100644
--- a/linglong.yaml
+++ b/linglong.yaml
@@ -18,7 +18,6 @@ depends:
   - id: gsettings-qt/0.3.1.1
   - id: dtkcore/5.6.0.2
   - id: libqtxdg/3.6.0.1
-  - id: freeimage/3.18.0
 
 source:
   kind: local
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1c7b637f..02b05d15 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -84,6 +84,10 @@ if(NOT DTK_DISABLE_EX_IMAGE_FORMAT AND EX_IMAGE_FORMAT_LIBS_FOUND)
     )
 endif()
 
+# DImageHandler is deprecated but still built for API/ABI compatibility,
+# so ignore deprecation warnings when building internal targets.
+target_compile_definitions(${LIB_NAME} PRIVATE D_IGNORE_DEPRECATIONS)
+
 if(NOT DTK_DISABLE_LIBXDG)
     target_link_libraries(${LIB_NAME} PRIVATE
         Qt${QT_VERSION_MAJOR}XdgIconLoader
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 9e4d982b..761a3de0 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -33,6 +33,7 @@ add_executable(${BIN_NAME}
 add_dependencies(${BIN_NAME} ${test-plugin})
 
 target_compile_options(${BIN_NAME} PRIVATE -fno-access-control)
+target_compile_definitions(${BIN_NAME} PRIVATE D_IGNORE_DEPRECATIONS)
 
 if (CMAKE_BUILD_TYPE STREQUAL "Debug")
     target_compile_options(${BIN_NAME} PRIVATE -fsanitize=address)
diff --git a/tools/image-handler/CMakeLists.txt b/tools/image-handler/CMakeLists.txt
index a2f3b0fb..19f304bb 100644
--- a/tools/image-handler/CMakeLists.txt
+++ b/tools/image-handler/CMakeLists.txt
@@ -5,6 +5,10 @@ add_executable(${TARGET_NAME}
     main.cpp
 )
 
+# DImageHandler is deprecated but still used by this tool,
+# so ignore deprecation warnings when building it.
+target_compile_definitions(${TARGET_NAME} PRIVATE D_IGNORE_DEPRECATIONS)
+
 target_link_libraries(${TARGET_NAME} PRIVATE
     Qt${QT_VERSION_MAJOR}::Gui
     ${LIB_NAME}