diff --git a/NEWS.md b/NEWS.md
index fd30a1c5..e34885a9 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -26,6 +26,7 @@ Version 0.6.0
  - implement: config shortcuts
  - implement: handle windows logout message
  - fix: editor's inproject property not correctly setted (and may cause devcpp to crash when close project)
+ - implement: print
 
 Version 0.5.0
  - enhancement: support C++ using type alias;
diff --git a/RedPandaIDE/RedPandaIDE.pro b/RedPandaIDE/RedPandaIDE.pro
index 92714521..d176f670 100644
--- a/RedPandaIDE/RedPandaIDE.pro
+++ b/RedPandaIDE/RedPandaIDE.pro
@@ -1,4 +1,4 @@
-QT       += core gui
+QT       += core gui printsupport
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
diff --git a/RedPandaIDE/editor.cpp b/RedPandaIDE/editor.cpp
index fb24ad56..e3eaae54 100644
--- a/RedPandaIDE/editor.cpp
+++ b/RedPandaIDE/editor.cpp
@@ -24,6 +24,9 @@
 #include <QToolTip>
 #include <QApplication>
 #include <QInputDialog>
+#include <QPrinter>
+#include <QPrintDialog>
+#include <QTextDocument>
 #include "iconsmanager.h"
 #include "debugger.h"
 #include "editorlist.h"
@@ -1997,6 +2000,44 @@ void Editor::insertCodeSnippet(const QString &code)
     }
 }
 
+void Editor::print()
+{
+    QPrinter printer;
+
+    QPrintDialog dialog(&printer, this);
+    dialog.setWindowTitle(tr("Print Document"));
+//    if (editor->selAvail())
+//        dialog.addEnabledOption(QAbstractPrintDialog::PrintSelection);
+    if (dialog.exec() != QDialog::Accepted) {
+        return;
+    }
+    QTextDocument doc;
+//    if (editor->selAvail()) {
+//        doc.setPlainText(editor->selText());
+//    } else {
+    QStringList lst = contents();
+    for (int i=0;i<lst.length();i++) {
+        int columns = 0;
+        QString line = lst[i];
+        QString newLine;
+        for (QChar ch:line) {
+            if (ch=='\t') {
+                int charCol = tabWidth() - (columns % tabWidth());
+                newLine += QString(charCol,' ');
+                columns += charCol;
+            } else {
+                newLine+=ch;
+                columns+=charColumns(ch);
+            }
+        }
+        lst[i]=newLine;
+    }
+    doc.setDefaultFont(font());
+    doc.setPlainText(lst.join(lineBreak()));
+    doc.print(&printer);
+
+}
+
 void Editor::showCompletion(bool autoComplete)
 {
     if (!pSettings->codeCompletion().enabled())
@@ -3136,7 +3177,7 @@ void Editor::reformat()
         return;
     //we must remove all breakpoints and syntax issues
     onLinesDeleted(1,lines()->count());
-    QByteArray content = lines()->text().toUtf8();
+    QByteArray content = text().toUtf8();
     QStringList args = pSettings->codeFormatter().getArguments();
     QByteArray newContent = runAndGetOutput("astyle.exe",
                                             pSettings->dirs().app(),
diff --git a/RedPandaIDE/editor.h b/RedPandaIDE/editor.h
index 8cf1812f..132dc475 100644
--- a/RedPandaIDE/editor.h
+++ b/RedPandaIDE/editor.h
@@ -158,6 +158,7 @@ public:
     void reparseTodo();
     void insertString(const QString& value, bool moveCursor);
     void insertCodeSnippet(const QString& code);
+    void print();
 
     const PCppParser &parser();
 
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 44e49d36..47256628 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -234,6 +234,7 @@ void MainWindow::updateEditorActions()
         ui->actionRedo->setEnabled(false);
         ui->actionSave->setEnabled(false);
         ui->actionSaveAs->setEnabled(false);
+        ui->actionPrint->setEnabled(false);
         ui->actionSelectAll->setEnabled(false);
         ui->actionToggleComment->setEnabled(false);
         ui->actionUnIndent->setEnabled(false);
@@ -266,6 +267,7 @@ void MainWindow::updateEditorActions()
         ui->actionUndo->setEnabled(e->canUndo());
         ui->actionSave->setEnabled(e->modified());
         ui->actionSaveAs->setEnabled(true);
+        ui->actionPrint->setEnabled(true);
         ui->actionSelectAll->setEnabled(e->lines()->count()>0);
         ui->actionToggleComment->setEnabled(!e->readOnly() && e->lines()->count()>0);
         ui->actionUnIndent->setEnabled(!e->readOnly() && e->lines()->count()>0);
@@ -891,10 +893,10 @@ void MainWindow::checkSyntaxInBack(Editor *e)
     ui->tableIssues->clearIssues();
     CompileTarget target =getCompileTarget();
     if (target ==CompileTarget::Project) {
-        mCompilerManager->checkSyntax(e->filename(),e->lines()->text(),
+        mCompilerManager->checkSyntax(e->filename(),e->text(),
                                           e->fileEncoding() == ENCODING_ASCII, mProject);
     } else {
-        mCompilerManager->checkSyntax(e->filename(),e->lines()->text(),
+        mCompilerManager->checkSyntax(e->filename(),e->text(),
                                           e->fileEncoding() == ENCODING_ASCII, nullptr);
     }
 //    if not PrepareForCompile(cttStdin,True) then begin
@@ -4108,3 +4110,12 @@ void MainWindow::on_btnCancelReplace_clicked()
 {
     showSearchReplacePanel(false);
 }
+
+void MainWindow::on_actionPrint_triggered()
+{
+    Editor * editor = mEditorList->getEditor();
+    if (!editor)
+        return;
+    editor->print();
+}
+
diff --git a/RedPandaIDE/mainwindow.h b/RedPandaIDE/mainwindow.h
index c75ff16b..064e6e6d 100644
--- a/RedPandaIDE/mainwindow.h
+++ b/RedPandaIDE/mainwindow.h
@@ -383,6 +383,8 @@ private slots:
 
     void on_btnCancelReplace_clicked();
 
+    void on_actionPrint_triggered();
+
 private:
     Ui::MainWindow *ui;
     EditorList *mEditorList;
diff --git a/RedPandaIDE/mainwindow.ui b/RedPandaIDE/mainwindow.ui
index 4a32306e..4303e27a 100644
--- a/RedPandaIDE/mainwindow.ui
+++ b/RedPandaIDE/mainwindow.ui
@@ -854,6 +854,8 @@
     <addaction name="actionClose_Project"/>
     <addaction name="actionClose_All"/>
     <addaction name="separator"/>
+    <addaction name="actionPrint"/>
+    <addaction name="separator"/>
     <addaction name="actionExit"/>
    </widget>
    <widget class="QMenu" name="menuTools">
@@ -1808,6 +1810,18 @@
     <string>Shift+F6</string>
    </property>
   </action>
+  <action name="actionPrint">
+   <property name="icon">
+    <iconset resource="icons.qrc">
+     <normaloff>:/icons/images/newlook24/055-package.png</normaloff>:/icons/images/newlook24/055-package.png</iconset>
+   </property>
+   <property name="text">
+    <string>Print...</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+P</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>
diff --git a/RedPandaIDE/qsynedit/SynEdit.cpp b/RedPandaIDE/qsynedit/SynEdit.cpp
index 3ee520d1..e24f8cef 100644
--- a/RedPandaIDE/qsynedit/SynEdit.cpp
+++ b/RedPandaIDE/qsynedit/SynEdit.cpp
@@ -538,6 +538,12 @@ QStringList SynEdit::contents()
     return lines()->contents();
 }
 
+QString SynEdit::text()
+{
+    QMutexLocker locker(&mMutex);
+    return lines()->text();
+}
+
 bool SynEdit::getPositionOfMouse(BufferCoord &aPos)
 {
     QPoint point = QCursor::pos();
@@ -4147,7 +4153,7 @@ void SynEdit::setHighlighter(const PSynHighlighter &highlighter)
     invalidate();
 }
 
-PSynEditStringList SynEdit::lines() const
+const PSynEditStringList& SynEdit::lines() const
 {
     return mLines;
 }
diff --git a/RedPandaIDE/qsynedit/SynEdit.h b/RedPandaIDE/qsynedit/SynEdit.h
index f6ede3b6..94be52bb 100644
--- a/RedPandaIDE/qsynedit/SynEdit.h
+++ b/RedPandaIDE/qsynedit/SynEdit.h
@@ -258,6 +258,7 @@ public:
     virtual BufferCoord getMatchingBracketEx(BufferCoord APoint);
 
     QStringList contents();
+    QString text();
 
     bool getPositionOfMouse(BufferCoord& aPos);
     bool getLineOfMouse(int& line);
@@ -309,7 +310,7 @@ public:
     QString lineText() const;
     void setLineText(const QString s);
 
-    PSynEditStringList lines() const;
+    const PSynEditStringList& lines() const;
     bool empty();
 
     SynSelectionMode selectionMode() const;
diff --git a/RedPandaIDE/qsynedit/TextBuffer.cpp b/RedPandaIDE/qsynedit/TextBuffer.cpp
index 14e4dd14..c69d96a2 100644
--- a/RedPandaIDE/qsynedit/TextBuffer.cpp
+++ b/RedPandaIDE/qsynedit/TextBuffer.cpp
@@ -25,7 +25,7 @@ static void ListIndexOutOfBounds(int index) {
 
 
 
-int SynEditStringList::parenthesisLevels(int Index)
+int SynEditStringList::parenthesisLevels(int Index) const
 {
     if (Index>=0 && Index < mList.size()) {
         return mList[Index]->fRange.parenthesisLevel;
@@ -33,7 +33,7 @@ int SynEditStringList::parenthesisLevels(int Index)
         return 0;
 }
 
-int SynEditStringList::bracketLevels(int Index)
+int SynEditStringList::bracketLevels(int Index) const
 {
     if (Index>=0 && Index < mList.size()) {
         return mList[Index]->fRange.bracketLevel;
@@ -41,7 +41,7 @@ int SynEditStringList::bracketLevels(int Index)
         return 0;
 }
 
-int SynEditStringList::braceLevels(int Index)
+int SynEditStringList::braceLevels(int Index) const
 {
     if (Index>=0 && Index < mList.size()) {
         return mList[Index]->fRange.braceLevel;
@@ -71,7 +71,7 @@ int SynEditStringList::lineColumns(int Index)
         return 0;
 }
 
-int SynEditStringList::leftBraces(int Index)
+int SynEditStringList::leftBraces(int Index) const
 {
     if (Index>=0 && Index < mList.size()) {
         return mList[Index]->fLeftBraces;
@@ -79,7 +79,7 @@ int SynEditStringList::leftBraces(int Index)
         return 0;
 }
 
-int SynEditStringList::rightBraces(int Index)
+int SynEditStringList::rightBraces(int Index) const
 {
     if (Index>=0 && Index < mList.size()) {
         return mList[Index]->fRightBraces;
@@ -87,8 +87,7 @@ int SynEditStringList::rightBraces(int Index)
         return 0;
 }
 
-int SynEditStringList::lengthOfLongestLine()
-{
+int SynEditStringList::lengthOfLongestLine() {
     if (mIndexOfLongestLine < 0) {
         int MaxLen = -1;
         mIndexOfLongestLine = -1;
@@ -108,7 +107,7 @@ int SynEditStringList::lengthOfLongestLine()
         return 0;
 }
 
-QString SynEditStringList::lineBreak()
+QString SynEditStringList::lineBreak() const
 {
     switch(mFileEndingType) {
     case FileEndingType::Linux:
@@ -121,7 +120,7 @@ QString SynEditStringList::lineBreak()
     return "\n";
 }
 
-const SynRangeState& SynEditStringList::ranges(int Index)
+const SynRangeState& SynEditStringList::ranges(int Index) const
 {
     if (Index>=0 && Index < mList.size()) {
         return mList[Index]->fRange;
@@ -178,7 +177,7 @@ void SynEditStringList::setRange(int Index, const SynRangeState& ARange, int ALe
     endUpdate();
 }
 
-QString SynEditStringList::getString(int Index)
+QString SynEditStringList::getString(int Index) const
 {
     if (Index<0 || Index>=mList.count()) {
         return QString();
@@ -186,12 +185,12 @@ QString SynEditStringList::getString(int Index)
     return mList[Index]->fString;
 }
 
-int SynEditStringList::count()
+int SynEditStringList::count() const
 {
     return mList.count();
 }
 
-void *SynEditStringList::getObject(int Index)
+void *SynEditStringList::getObject(int Index) const
 {
     if (Index<0 || Index>=mList.count()) {
         return nullptr;
@@ -199,7 +198,7 @@ void *SynEditStringList::getObject(int Index)
     return mList[Index]->fObject;
 }
 
-QString SynEditStringList::text()
+QString SynEditStringList::text() const
 {
     return getTextStr();
 }
@@ -227,7 +226,7 @@ void SynEditStringList::setContents(const QStringList &text)
     }
 }
 
-QStringList SynEditStringList::contents()
+QStringList SynEditStringList::contents() const
 {
     QStringList Result;
     SynEditStringRecList list = mList;
@@ -371,7 +370,7 @@ void SynEditStringList::deleteAt(int Index)
     endUpdate();
 }
 
-QString SynEditStringList::getTextStr()
+QString SynEditStringList::getTextStr() const
 {
     QString result;
     for (int i=0;i<mList.count()-1;i++) {
diff --git a/RedPandaIDE/qsynedit/TextBuffer.h b/RedPandaIDE/qsynedit/TextBuffer.h
index fe48d9a8..7f6e6179 100644
--- a/RedPandaIDE/qsynedit/TextBuffer.h
+++ b/RedPandaIDE/qsynedit/TextBuffer.h
@@ -50,23 +50,23 @@ class SynEditStringList : public QObject
 public:
     explicit SynEditStringList(SynEdit* pEdit,QObject* parent=nullptr);
 
-    int parenthesisLevels(int Index);
-    int bracketLevels(int Index);
-    int braceLevels(int Index);
+    int parenthesisLevels(int Index) const;
+    int bracketLevels(int Index) const;
+    int braceLevels(int Index) const;
     int lineColumns(int Index);
-    int leftBraces(int Index);
-    int rightBraces(int Index);
+    int leftBraces(int Index) const;
+    int rightBraces(int Index) const;
     int lengthOfLongestLine();
-    QString lineBreak();
-    const SynRangeState& ranges(int Index);
+    QString lineBreak() const;
+    const SynRangeState& ranges(int Index) const;
     void setRange(int Index, const SynRangeState& ARange, int leftBraces, int rightBraces);
-    QString getString(int Index);
-    int count();
-    void* getObject(int Index);
-    QString text();
+    QString getString(int Index) const;
+    int count() const ;
+    void* getObject(int Index) const;
+    QString text() const;
     void setText(const QString& text);
     void setContents(const QStringList& text);
-    QStringList contents();
+    QStringList contents() const;
 
     void putString(int Index, const QString& s);
     void putObject(int Index, void * AObject);
@@ -111,7 +111,7 @@ signals:
     void inserted(int index, int count);
     void putted(int index, int count);
 protected:
-    QString getTextStr();
+    QString getTextStr() const;
     void SetUpdateState(bool Updating);
     void InsertItem(int Index, const QString& s);
     void addItem(const QString& s);
diff --git a/RedPandaIDE/settingsdialog/editorsnippetwidget.cpp b/RedPandaIDE/settingsdialog/editorsnippetwidget.cpp
index cac0feaf..b291436e 100644
--- a/RedPandaIDE/settingsdialog/editorsnippetwidget.cpp
+++ b/RedPandaIDE/settingsdialog/editorsnippetwidget.cpp
@@ -21,7 +21,7 @@ EditorSnippetWidget::EditorSnippetWidget(const QString& name, const QString& gro
         if (!index.isValid())
             return;
         PCodeSnippet snippet = mModel.snippets()[index.row()];
-        snippet->code = ui->editCode->lines()->text();
+        snippet->code = ui->editCode->text();
         setSettingsChanged();
     });
     connect(ui->tblSnippets->selectionModel(), &QItemSelectionModel::currentChanged,