diff --git a/3rdparty/deepin-pdfium/src/dpdfdoc.cpp b/3rdparty/deepin-pdfium/src/dpdfdoc.cpp
index b7e359dd9..d1e22586d 100755
--- a/3rdparty/deepin-pdfium/src/dpdfdoc.cpp
+++ b/3rdparty/deepin-pdfium/src/dpdfdoc.cpp
@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 
 #include "dpdfdoc.h"
+#include "dpdflog.h"
 #include "dpdfpage.h"
 
 #include "public/fpdfview.h"
@@ -131,14 +132,14 @@ DPdfDoc::Status DPdfDocPrivate::loadFile(const QString &filePath, const QString
 
     DPdfMutexLocker locker("DPdfDocPrivate::loadFile");
 
-    qDebug() << "deepin-pdfium正在加载PDF文档... 文档名称: " << filePath;
+    qCDebug(dpfLog) << "deepin-pdfium正在加载PDF文档... 文档名称: " << filePath;
     void *ptr = FPDF_LoadDocument(m_filePath.toUtf8().constData(),
                                   password.toUtf8().constData());
 
     m_docHandler = static_cast<DPdfDocHandler *>(ptr);
 
     m_status = m_docHandler ? DPdfDoc::SUCCESS : parseError(static_cast<int>(FPDF_GetLastError()));
-    qDebug() << "文档（" << filePath << "）文档加载状态: " << m_status;
+    qCDebug(dpfLog) << "文档（" << filePath << "）文档加载状态: " << m_status;
 
     if (m_docHandler) {
         m_pageCount = FPDF_GetPageCount(reinterpret_cast<FPDF_DOCUMENT>(m_docHandler));
@@ -202,7 +203,7 @@ bool DPdfDoc::isLinearized(const QString &fileName)
 {
     QFile file(fileName);
     if (!file.open(QFile::ReadOnly)) {
-        qInfo() << "file open failed when isLinearized" << fileName;
+        qCInfo(dpfLog) << "file open failed when isLinearized" << fileName;
     }
     QByteArray content = file.readAll();
     int len = content.length();
@@ -279,7 +280,7 @@ bool DPdfDoc::save()
     // Rename original file to backup instead of deleting (avoids SMB file handle issues)
     if (targetFile.exists()) {
         if (!targetFile.rename(backupPath)) {
-            qWarning() << "Failed to rename original file to backup:" << targetPath;
+            qCWarning(dpfLog) << "Failed to rename original file to backup:" << targetPath;
             return false;
         }
     }
@@ -287,7 +288,7 @@ bool DPdfDoc::save()
     // Write new file
     QFile newFile(targetPath);
     if (!newFile.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
-        qWarning() << "Failed to open file for writing:" << targetPath;
+        qCWarning(dpfLog) << "Failed to open file for writing:" << targetPath;
         // Restore original file on failure
         if (QFile::exists(backupPath)) {
             QFile::rename(backupPath, targetPath);
@@ -296,7 +297,7 @@ bool DPdfDoc::save()
     }
 
     if (array.size() != newFile.write(array)) {
-        qWarning() << "Failed to write data to file:" << targetPath;
+        qCWarning(dpfLog) << "Failed to write data to file:" << targetPath;
         result = false;
         newFile.close();
         newFile.remove();
diff --git a/3rdparty/deepin-pdfium/src/dpdfglobal.cpp b/3rdparty/deepin-pdfium/src/dpdfglobal.cpp
index 524654ac0..bf9146d7f 100755
--- a/3rdparty/deepin-pdfium/src/dpdfglobal.cpp
+++ b/3rdparty/deepin-pdfium/src/dpdfglobal.cpp
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: LGPL-3.0-or-later
 
@@ -6,10 +6,13 @@
 #include <QString>
 #include <QDebug>
 #include "dpdfglobal.h"
+#include "dpdflog.h"
 #include "public/fpdfview.h"
 
 #include <chardet.h>
 
+Q_LOGGING_CATEGORY(dpfLog, "org.deepin.reader.pdfium")
+
 static bool initialized = false;
 
 const static DPdfGlobal instance = DPdfGlobal();
@@ -60,11 +63,11 @@ DPdfMutexLocker::DPdfMutexLocker(const QString &tmpLog): QMutexLocker<QRecursive
 #endif
 {
     m_log = tmpLog;
-    qInfo() << m_log + " begin ";
+    qCInfo(dpfLog) << m_log + " begin ";
     m_timer.start();
 }
 
 DPdfMutexLocker::~DPdfMutexLocker()
 {
-    qInfo() << m_log + " end time = " << m_timer.elapsed();
+    qCInfo(dpfLog) << m_log + " end time = " << m_timer.elapsed();
 }
diff --git a/3rdparty/deepin-pdfium/src/dpdflog.h b/3rdparty/deepin-pdfium/src/dpdflog.h
new file mode 100644
index 000000000..aabdef5fa
--- /dev/null
+++ b/3rdparty/deepin-pdfium/src/dpdflog.h
@@ -0,0 +1,14 @@
+// SPDX-FileCopyrightText: 2026 UnionTech Software Technology Co., Ltd.
+//
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+#ifndef DPDFLOG_H
+#define DPDFLOG_H
+
+#include <QLoggingCategory>
+
+// deepin-pdfium 日志分类：挂在 org.deepin.reader 前缀下，
+// 可被 DConfig(log_rules) 的 org.deepin.reader* 通配规则统一过滤
+Q_DECLARE_LOGGING_CATEGORY(dpfLog)
+
+#endif   // DPDFLOG_H
diff --git a/batch-print/CMakeLists.txt b/batch-print/CMakeLists.txt
index ca321439c..43f2b46af 100644
--- a/batch-print/CMakeLists.txt
+++ b/batch-print/CMakeLists.txt
@@ -25,6 +25,8 @@ add_library(batchprint-core STATIC
 
 target_include_directories(batchprint-core PUBLIC
     ${CMAKE_CURRENT_SOURCE_DIR}
+    # 引用 reader/ddlog.h 的日志分类定义
+    ${CMAKE_SOURCE_DIR}/reader
 )
 
 target_link_libraries(batchprint-core PUBLIC
diff --git a/batch-print/batchprintapp.cpp b/batch-print/batchprintapp.cpp
index 7a18af757..c57fafc16 100644
--- a/batch-print/batchprintapp.cpp
+++ b/batch-print/batchprintapp.cpp
@@ -11,6 +11,8 @@
 #include <QFileInfo>
 #include <QDebug>
 
+#include "ddlog.h"
+
 BatchPrintApp::BatchPrintApp(ICupsApi *cupsApi)
 {
     if (cupsApi) {
@@ -33,12 +35,12 @@ int BatchPrintApp::run(const QStringList &fileList)
     CupsClient *cups = dynamic_cast<CupsClient *>(m_cupsApi);
     if (cups) {
         if (!cups->init()) {
-            qWarning() << "CUPS init failed";
+            qCWarning(batchprintLog) << "CUPS init failed";
             NotifyClient::notifyError(ErrorMessages::cupsUnavailable());
             return 2;
         }
         if (!cups->checkEnvironment()) {
-            qWarning() << "CUPS environment check failed";
+            qCWarning(batchprintLog) << "CUPS environment check failed";
             NotifyClient::notifyError(ErrorMessages::noDefaultPrinter());
             return 2;
         }
@@ -64,7 +66,7 @@ int BatchPrintApp::run(const QStringList &fileList)
         QString errorMsg;
         if (!FormatConverter::convertToPdf(filePath, tempDir.path(),
                                            outputPdfPath, errorMsg)) {
-            qWarning() << errorMsg;
+            qCWarning(batchprintLog) << errorMsg;
             failedFiles.append(QFileInfo(filePath).fileName());
             continue;
         }
diff --git a/batch-print/cupsclient.cpp b/batch-print/cupsclient.cpp
index dda4b1a74..a6236bfba 100644
--- a/batch-print/cupsclient.cpp
+++ b/batch-print/cupsclient.cpp
@@ -10,6 +10,8 @@
 #include <QUrl>
 #include <QDebug>
 
+#include "ddlog.h"
+
 #include <cstdlib>
 
 typedef int (*cupsGetDests_fn)(cups_dest_t **dests);
@@ -55,13 +57,13 @@ bool CupsClient::init()
 {
     m_lib.setFileName(QStringLiteral("cups"));
     if (!m_lib.load()) {
-        qWarning() << "Failed to dlopen libcups:" << m_lib.errorString();
+        qCWarning(batchprintLog) << "Failed to dlopen libcups:" << m_lib.errorString();
         return false;
     }
 
     m_loaded = loadSymbols();
     if (!m_loaded) {
-        qWarning() << "Failed to resolve CUPS symbols";
+        qCWarning(batchprintLog) << "Failed to resolve CUPS symbols";
         return false;
     }
 
@@ -76,7 +78,7 @@ bool CupsClient::checkEnvironment()
     cups_dest_t *dests = nullptr;
     int numDest = ((cupsGetDests_fn)m_cupsGetDests)(&dests);
     if (numDest <= 0) {
-        qWarning() << "No printers found";
+        qCWarning(batchprintLog) << "No printers found";
         return false;
     }
 
diff --git a/htmltopdf/CMakeLists.txt b/htmltopdf/CMakeLists.txt
index e42619e9e..733c4ba2c 100644
--- a/htmltopdf/CMakeLists.txt
+++ b/htmltopdf/CMakeLists.txt
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 UnionTech Software Technology Co., Ltd.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 # 定义htmltopdf可执行文件
 add_executable(htmltopdf
     main.cpp
@@ -14,6 +18,9 @@ set_target_properties(htmltopdf PROPERTIES
 
 find_package(Qt${QT_DESIRED_VERSION} REQUIRED COMPONENTS WebEngineWidgets)
 
+# 引用 reader/ddlog.h 的日志分类定义
+target_include_directories(htmltopdf PRIVATE ${CMAKE_SOURCE_DIR}/reader)
+
 # 链接Qt模块
 target_link_libraries(htmltopdf PRIVATE
     Qt${QT_VERSION_MAJOR}::WebEngineWidgets
diff --git a/htmltopdf/htmltopdfconverter.cpp b/htmltopdf/htmltopdfconverter.cpp
index 0ace65617..63eae2bfc 100644
--- a/htmltopdf/htmltopdfconverter.cpp
+++ b/htmltopdf/htmltopdfconverter.cpp
@@ -1,5 +1,5 @@
 // Copyright (C) 2019 ~ 2020 Uniontech Software Technology Co.,Ltd.
-// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -7,12 +7,14 @@
 
 #include <QApplication>
 
+#include "ddlog.h"
+
 HtmltoPdfConverter::HtmltoPdfConverter(const QString &inputPath, const QString &outputPath)
     : m_inputPath(inputPath)
     , m_outputPath(outputPath)
     , m_page(new QWebEnginePage)
 {
-    qDebug() << "HtmltoPdfConverter initialized with input:" << inputPath << "output:" << outputPath;
+    qCDebug(htmltopdfLog) << "HtmltoPdfConverter initialized with input:" << inputPath << "output:" << outputPath;
 
     connect(m_page.data(), &QWebEnginePage::loadFinished,
             this, &HtmltoPdfConverter::loadFinished);
@@ -22,9 +24,9 @@ HtmltoPdfConverter::HtmltoPdfConverter(const QString &inputPath, const QString &
 
 int HtmltoPdfConverter::run()
 {
-    qDebug() << "Starting HTML to PDF conversion process";
+    qCDebug(htmltopdfLog) << "Starting HTML to PDF conversion process";
     QUrl url = QUrl::fromUserInput(m_inputPath);
-    qDebug() << "Loading HTML file from path:" << url;
+    qCDebug(htmltopdfLog) << "Loading HTML file from path:" << url;
     m_page->load(url);
     return QCoreApplication::exec();
 }
@@ -32,17 +34,17 @@ int HtmltoPdfConverter::run()
 void HtmltoPdfConverter::loadFinished(bool ok)
 {
     if (!ok) {
-        qWarning() << QString("Failed to load URL '%1'").arg(m_inputPath);
+        qCWarning(htmltopdfLog) << QString("Failed to load URL '%1'").arg(m_inputPath);
         QCoreApplication::exit(1);
     }
-    qInfo() << QString("Successfully loaded URL '%1'").arg(m_inputPath);
+    qCInfo(htmltopdfLog) << QString("Successfully loaded URL '%1'").arg(m_inputPath);
     m_page->printToPdf(m_outputPath);
 }
 
 void HtmltoPdfConverter::pdfPrintingFinished(const QString &filePath, bool success)
 {
     if (!success) {
-        qWarning() << QString("Failed to print to output file '%1'").arg(filePath);
+        qCWarning(htmltopdfLog) << QString("Failed to print to output file '%1'").arg(filePath);
         QCoreApplication::exit(1);
     } else {
         QCoreApplication::quit();
diff --git a/htmltopdf/main.cpp b/htmltopdf/main.cpp
index 80aed2571..2d4b3be85 100644
--- a/htmltopdf/main.cpp
+++ b/htmltopdf/main.cpp
@@ -1,5 +1,5 @@
 // Copyright (C) 2019 ~ 2020 Uniontech Software Technology Co.,Ltd.
-// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -10,26 +10,28 @@
 #include <QProcessEnvironment>
 #include <QDebug>
 
+#include "ddlog.h"
+
 bool isWayland();
 
 int main(int argc, char *argv[])
 {
-    qDebug() << "Starting html2pdf converter application";
+    qCDebug(htmltopdfLog) << "Starting html2pdf converter application";
 
     QApplication app(argc, argv);
     QApplication::setApplicationName("html2pdf");
     QApplication::setApplicationVersion("v1.0");
 
     bool wayland = isWayland();
-    qDebug() << "Wayland environment detected:" << wayland;
+    qCDebug(htmltopdfLog) << "Wayland environment detected:" << wayland;
     if (wayland) {
-        qDebug() << "Wayland detected, disabling GPU";
+        qCDebug(htmltopdfLog) << "Wayland detected, disabling GPU";
         // 解决klu panguV平台使用QWebEnginePage崩溃的问题，不支持gpu渲染
         qputenv("QTWEBENGINE_CHROMIUM_FLAGS", "--disable-gpu");
     }
     // 解决__sw_64__平台使用QWebEnginePage崩溃的问题
 #ifdef __sw_64__
-    qDebug() << "Running on __sw_64__ platform, --js-flags=--jitless";
+    qCDebug(htmltopdfLog) << "Running on __sw_64__ platform, --js-flags=--jitless";
     qputenv("QTWEBENGINE_CHROMIUM_FLAGS", "--js-flags=--jitless");
 #endif
 
@@ -50,28 +52,28 @@ int main(int argc, char *argv[])
 
     const QStringList requiredArguments = parser.positionalArguments();
     if (requiredArguments.size() != 2) {
-        qCritical() << "Invalid number of arguments, expected 2 but got" << requiredArguments.size();
+        qCCritical(htmltopdfLog) << "Invalid number of arguments, expected 2 but got" << requiredArguments.size();
         parser.showHelp(1);
     }
-    qInfo() << "Input file:" << requiredArguments.at(0) << "Output PDF:" << requiredArguments.at(1);
+    qCInfo(htmltopdfLog) << "Input file:" << requiredArguments.at(0) << "Output PDF:" << requiredArguments.at(1);
 
-    qInfo() << "Creating PDF converter instance";
+    qCInfo(htmltopdfLog) << "Creating PDF converter instance";
     HtmltoPdfConverter converter(requiredArguments.at(0), requiredArguments.at(1));
     return converter.run();
 }
 
 bool isWayland()
 {
-    qDebug() << "Checking display environment";
+    qCDebug(htmltopdfLog) << "Checking display environment";
     auto e = QProcessEnvironment::systemEnvironment();
     QString XDG_SESSION_TYPE = e.value(QStringLiteral("XDG_SESSION_TYPE"));
     QString WAYLAND_DISPLAY = e.value(QStringLiteral("WAYLAND_DISPLAY"));
 
     if (XDG_SESSION_TYPE == QLatin1String("wayland") || WAYLAND_DISPLAY.contains(QLatin1String("wayland"), Qt::CaseInsensitive)) {
-        qDebug() << "Wayland session detected";
+        qCDebug(htmltopdfLog) << "Wayland session detected";
         return true;
     } else {
-        qDebug() << "X11 session detected";
+        qCDebug(htmltopdfLog) << "X11 session detected";
         return false;
     }
 }
diff --git a/reader/app/Database.cpp b/reader/app/Database.cpp
index 53823fb2e..1e49440a0 100644
--- a/reader/app/Database.cpp
+++ b/reader/app/Database.cpp
@@ -1195,7 +1195,7 @@ Database::Database(QObject *parent) : QObject(parent)
     m_database.setDatabaseName(QDir(path).filePath("user.db"));
     qCDebug(appLog) << "Opening database:" << m_database.databaseName();
     if (!m_database.open()) {
-        qCritical() << "Failed to open database:" << m_database.lastError();
+        qCCritical(appLog) << "Failed to open database:" << m_database.lastError();
     }
 
     if (m_database.isOpen()) {
diff --git a/reader/ddlog.h b/reader/ddlog.h
index 7d592a0ca..fe0b45e30 100644
--- a/reader/ddlog.h
+++ b/reader/ddlog.h
@@ -1,18 +1,21 @@
-// SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2025 - 2026 UnionTech Software Technology Co., Ltd.
 //
-// SPDX-Liteense-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef DDLOG_H
 #define DDLOG_H
-#ifdef DTKCORE_CLASS_DConfigFile
-#include <DConfig>
-#endif
-#include <DLog>
 
-DCORE_USE_NAMESPACE
+#include <QDebug>
+#include <QLoggingCategory>
 
-// namespace DDLog {
+// 全项目统一的日志分类：reader / batch-print / htmltopdf 共用此定义，
+// 便于 DConfig(deepin-log-viewer) 按应用统一过滤
 inline Q_LOGGING_CATEGORY(appLog, "org.deepin.reader")
-// }
+
+// 模块分离：batch-print 批量打印进程
+inline Q_LOGGING_CATEGORY(batchprintLog, "org.deepin.reader.batchprint")
+
+// 模块分离：htmltopdf 转换进程
+inline Q_LOGGING_CATEGORY(htmltopdfLog, "org.deepin.reader.htmltopdf")
 
 #endif   // DDLOG_H
diff --git a/reader/document/DjVuModel.cpp b/reader/document/DjVuModel.cpp
index 5429ce7de..3b3529dd5 100644
--- a/reader/document/DjVuModel.cpp
+++ b/reader/document/DjVuModel.cpp
@@ -1,5 +1,5 @@
 // Copyright (C) 2019 ~ 2020 Uniontech Software Technology Co.,Ltd.
-// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -524,7 +524,7 @@ deepin_reader::DjVuDocument *DjVuDocument::loadDocument(const QString &filePath,
     ddjvu_context_t *context = ddjvu_context_create("deepin_reader");
 
     if (context == nullptr) {
-        qCritical() << "Failed to create DjVu context";
+        qCCritical(appLog) << "Failed to create DjVu context";
         error = Document::FileError;
         return nullptr;
     }
@@ -536,7 +536,7 @@ deepin_reader::DjVuDocument *DjVuDocument::loadDocument(const QString &filePath,
 #endif // DDJVUAPI_VERSION
 
     if (document == nullptr) {
-        qCritical() << "Failed to create DjVu document from file:" << filePath;
+        qCCritical(appLog) << "Failed to create DjVu document from file:" << filePath;
         ddjvu_context_release(context);
 
         error = Document::FileError;
@@ -546,7 +546,7 @@ deepin_reader::DjVuDocument *DjVuDocument::loadDocument(const QString &filePath,
     waitForMessageTag(context, DDJVU_DOCINFO);
 
     if (ddjvu_document_decoding_error(document)) {
-        qCritical() << "Document decoding error occurred";
+        qCCritical(appLog) << "Document decoding error occurred";
         ddjvu_document_release(document);
         ddjvu_context_release(context);
 
diff --git a/reader/document/Model.cpp b/reader/document/Model.cpp
index 09dbd8718..92229d28e 100644
--- a/reader/document/Model.cpp
+++ b/reader/document/Model.cpp
@@ -112,7 +112,7 @@ deepin_reader::Document *deepin_reader::DocumentFactory::getDocument(const int &
                 QFile::remove(localFilePath);
 
             if (!QFile::copy(filePath, localFilePath)) {
-                qCritical() << "Failed to copy network DJVU file from" << filePath << "to" << localFilePath;
+                qCCritical(appLog) << "Failed to copy network DJVU file from" << filePath << "to" << localFilePath;
                 error = deepin_reader::Document::FileError;
             } else {
                 qCInfo(appLog) << "Copied network DJVU to local:" << localFilePath;
@@ -134,7 +134,7 @@ deepin_reader::Document *deepin_reader::DocumentFactory::getDocument(const int &
     } else if (Dr::DOCX == fileType) {
         qCDebug(appLog) << "Starting DOCX document conversion process";
         if (nullptr == pprocess) {
-            qCritical() << "Invalid process pointer for DOCX conversion";
+            qCCritical(appLog) << "Invalid process pointer for DOCX conversion";
             error = deepin_reader::Document::ConvertFailed;
             return nullptr;
         }
@@ -158,7 +158,7 @@ deepin_reader::Document *deepin_reader::DocumentFactory::getDocument(const int &
 
         QFile file(filePath);
         if (!file.copy(targetDoc)) {
-            qCritical() << "Failed to copy file from" << filePath << "to" << targetDoc;
+            qCCritical(appLog) << "Failed to copy file from" << filePath << "to" << targetDoc;
             error = deepin_reader::Document::ConvertFailed;
             *pprocess = nullptr;
             return nullptr;
@@ -184,19 +184,19 @@ deepin_reader::Document *deepin_reader::DocumentFactory::getDocument(const int &
         qCDebug(appLog) << "执行命令: unzip" << unzipArgs;
         decompressor.start("unzip", unzipArgs);
         if (!decompressor.waitForStarted()) {
-            qCritical() << "Failed to start unzip process for file:" << targetDoc;
+            qCCritical(appLog) << "Failed to start unzip process for file:" << targetDoc;
             error = deepin_reader::Document::ConvertFailed;
             *pprocess = nullptr;
             return nullptr;
         }
         if (!decompressor.waitForFinished(unzipTimeout)) {
-            qCritical() << "Unzip process failed for file:" << targetDoc;
+            qCCritical(appLog) << "Unzip process failed for file:" << targetDoc;
             error = deepin_reader::Document::ConvertFailed;
             *pprocess = nullptr;
             return nullptr;
         }
         if (!QDir(convertedFileDir + "/word").exists()) {
-            qCritical() << "Unzip failed! Directory not found:" << (convertedFileDir + "/word");
+            qCCritical(appLog) << "Unzip failed! Directory not found:" << (convertedFileDir + "/word");
             error = deepin_reader::Document::ConvertFailed;
             if (!(QProcess::CrashExit == decompressor.exitStatus() && 9 == decompressor.exitCode())) {
                 *pprocess = nullptr;
@@ -225,20 +225,20 @@ deepin_reader::Document *deepin_reader::DocumentFactory::getDocument(const int &
         qCDebug(appLog) << "执行命令: pandoc" << pandocArgs;
         converter.start("pandoc", pandocArgs);
         if (!converter.waitForStarted()) {
-            qCritical() << "Failed to start pandoc conversion process";
+            qCCritical(appLog) << "Failed to start pandoc conversion process";
             error = deepin_reader::Document::ConvertFailed;
             *pprocess = nullptr;
             return nullptr;
         }
         if (!converter.waitForFinished(pandocTimeout)) {
-            qCritical() << "Pandoc conversion process failed";
+            qCCritical(appLog) << "Pandoc conversion process failed";
             error = deepin_reader::Document::ConvertFailed;
             *pprocess = nullptr;
             return nullptr;
         }
         QFile tmpHtmlFile(tmpHtmlFilePath);
         if (!tmpHtmlFile.exists()) {
-            qCritical() << "Pandoc conversion failed! Output file not found:" << tmpHtmlFilePath;
+            qCCritical(appLog) << "Pandoc conversion failed! Output file not found:" << tmpHtmlFilePath;
             error = deepin_reader::Document::ConvertFailed;
             // 转换过程中关闭应用，docsheet被释放，对应的*pprocess已不存在
             if (!(QProcess::CrashExit == converter.exitStatus() && 9 == converter.exitCode())) {
@@ -259,13 +259,13 @@ deepin_reader::Document *deepin_reader::DocumentFactory::getDocument(const int &
         qCDebug(appLog) << "执行命令:" << getHtmlToPdfPath() << htmltopdfArgs;
         converter2.start(getHtmlToPdfPath(), htmltopdfArgs);
         if (!converter2.waitForStarted()) {
-            qCritical() << "Failed to start htmltopdf conversion process";
+            qCCritical(appLog) << "Failed to start htmltopdf conversion process";
             error = deepin_reader::Document::ConvertFailed;
             *pprocess = nullptr;
             return nullptr;
         }
         if (!converter2.waitForFinished(htmlToPdfTimeout)) {
-            qCritical() << "Htmltopdf conversion process failed";
+            qCCritical(appLog) << "Htmltopdf conversion process failed";
             error = deepin_reader::Document::ConvertFailed;
             *pprocess = nullptr;
             return nullptr;
@@ -273,7 +273,7 @@ deepin_reader::Document *deepin_reader::DocumentFactory::getDocument(const int &
 
         QFile realFile(realFilePath);
         if (!realFile.exists()) {
-            qCritical() << "Htmltopdf conversion failed! Output file not found:" << realFilePath;
+            qCCritical(appLog) << "Htmltopdf conversion failed! Output file not found:" << realFilePath;
             error = deepin_reader::Document::ConvertFailed;
             if (!(QProcess::CrashExit == converter.exitStatus() && 9 == converter.exitCode())) {
                 *pprocess = nullptr;
diff --git a/reader/document/PDFModel.cpp b/reader/document/PDFModel.cpp
index cd5595c5e..faf6ddafd 100644
--- a/reader/document/PDFModel.cpp
+++ b/reader/document/PDFModel.cpp
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2023 -2026 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -397,7 +397,7 @@ Annotation *PDFPage::addIconAnnotation(const QRectF &rect, const QString &text)
     qCInfo(appLog) << "Adding icon annotation at rect:" << rect << "with text:" << text;
 
     if (nullptr == m_page) {
-        qCritical() << "Attempt to add icon annotation to null page";
+        qCCritical(appLog) << "Attempt to add icon annotation to null page";
         return nullptr;
     }
 
@@ -409,7 +409,7 @@ Annotation *PDFPage::moveIconAnnotation(Annotation *annot, const QRectF &rect)
     qCInfo(appLog) << "Moving icon annotation to rect:" << rect;
 
     if (nullptr == m_page || nullptr == annot) {
-        qCritical() << "Attempt to move icon annotation with null page or annotation";
+        qCCritical(appLog) << "Attempt to move icon annotation with null page or annotation";
         return nullptr;
     }
 
@@ -586,7 +586,7 @@ PDFDocument *PDFDocument::loadDocument(const QString &filePath, const QString &p
             error = Document::WrongPassword;
         }
     } else {
-        qCritical() << "Failed to load PDF document, error code:" << document->status();
+        qCCritical(appLog) << "Failed to load PDF document, error code:" << document->status();
         error = Document::FileError;
     }
 
diff --git a/reader/sidebar/CatalogTreeView.cpp b/reader/sidebar/CatalogTreeView.cpp
index 91d2e55c3..ddb4b6449 100644
--- a/reader/sidebar/CatalogTreeView.cpp
+++ b/reader/sidebar/CatalogTreeView.cpp
@@ -186,7 +186,7 @@ void CatalogTreeView::handleOpenSuccess()
         model->clear();
 
         if (nullptr == m_sheet) {
-            qCritical() << "Cannot build catalog tree - document sheet is null";
+            qCCritical(appLog) << "Cannot build catalog tree - document sheet is null";
             return;
         }
 
@@ -295,7 +295,7 @@ void CatalogTreeView::currentChanged(const QModelIndex &current, const QModelInd
         && !current.data(deepin_reader::CatalogNavigationRole).isValid()) {
 
         if (nullptr == m_sheet) {
-            qCritical() << "Cannot navigate - document sheet is null";
+            qCCritical(appLog) << "Cannot navigate - document sheet is null";
             return;
         }
 
@@ -317,7 +317,7 @@ void CatalogTreeView::onItemClicked(const QModelIndex &current)
     qCDebug(appLog) << "Catalog item clicked:" << current.data().toString() << "page:" << current.data(Qt::UserRole + 1).toInt();
 
     if (nullptr == m_sheet) {
-        qCritical() << "Cannot navigate to clicked item - document sheet is null";
+        qCCritical(appLog) << "Cannot navigate to clicked item - document sheet is null";
         return;
     }
     if (m_populating || !current.isValid())
diff --git a/reader/sidebar/CatalogWidget.cpp b/reader/sidebar/CatalogWidget.cpp
index 1071b9579..4392da348 100644
--- a/reader/sidebar/CatalogWidget.cpp
+++ b/reader/sidebar/CatalogWidget.cpp
@@ -90,7 +90,7 @@ void CatalogWidget::handleOpenSuccess()
     qCDebug(appLog) << "Handling document open success, loading catalog";
 
     if (nullptr == m_sheet) {
-        qCritical() << "Cannot load catalog - document sheet is null";
+        qCCritical(appLog) << "Cannot load catalog - document sheet is null";
         return;
     }
     if (bIshandOpenSuccess) {