diff --git a/README.md b/README.md
index f559d11..e2b41bc 100644
--- a/README.md
+++ b/README.md
@@ -18,4 +18,5 @@ Qt编写的一些开源的demo，包括串口调试助手、网络调试助手
 | 12 | framelesswidget | 通用无边框拖动拉伸类 |
 | 13 | ipaddress | IP地址输入控件 |
 | 14 | bgdemo | 无边框背景透明窗体 |
-| 15 | dbpage | 通用数据库翻页查询 |
\ No newline at end of file
+| 15 | dbpage | 通用数据库翻页查询 |
+| 16 | pngtool | PNG图片警告去除工具 |
\ No newline at end of file
diff --git a/pngtool/frmpngtool.cpp b/pngtool/frmpngtool.cpp
new file mode 100644
index 0000000..5005dd0
--- /dev/null
+++ b/pngtool/frmpngtool.cpp
@@ -0,0 +1,74 @@
+#include "frmpngtool.h"
+#include "ui_frmpngtool.h"
+#include "qfile.h"
+#include "qfiledialog.h"
+#include "qdebug.h"
+
+frmPngTool::frmPngTool(QWidget *parent) : QWidget(parent), ui(new Ui::frmPngTool)
+{
+    ui->setupUi(this);
+    ui->progress->setRange(0, 0);
+    ui->progress->setValue(0);
+}
+
+frmPngTool::~frmPngTool()
+{
+    delete ui;
+}
+
+void frmPngTool::on_btnFile_clicked()
+{
+    QString file = QFileDialog::getOpenFileName(this, "选择png文件", qApp->applicationDirPath(), "png图片文件(*.png)");
+    if (!file.isEmpty()) {
+        ui->txtFile->setText(file);
+        ui->progress->setValue(0);
+    }
+}
+
+void frmPngTool::on_btnDir_clicked()
+{
+    QString dir = QFileDialog::getExistingDirectory(this, "选择目录");
+    if (!dir.isEmpty()) {
+        ui->txtDir->setText(dir);
+        ui->progress->setValue(0);
+    }
+}
+
+void frmPngTool::on_btnOk_clicked()
+{
+    files.clear();
+
+    //将单个文件加入队列
+    QString currentFile = ui->txtFile->text().trimmed();
+    if (currentFile.isEmpty()) {
+        files.append(currentFile);
+    }
+
+    //将该目录下的所有png文件存入链表
+    QString currentDir = ui->txtDir->text().trimmed();
+    if (!currentDir.isEmpty()) {
+        QDir imagePath(currentDir);
+        QStringList filter;
+        filter << "*.png";
+        QStringList list = imagePath.entryList(filter);
+
+        foreach (QString str, list) {
+            files.append(currentDir + "/" + str);
+        }
+    }
+
+    ui->progress->setRange(0, files.count());
+    ui->progress->setValue(0);
+
+    int count = 0;
+    foreach (QString file, files) {
+        qDebug() << "current file:" << file;
+        QImage image(file);
+        image.save(file, "png");
+        count++;
+        ui->progress->setValue(count);
+        qApp->processEvents();
+    }
+
+    qDebug() << "finsh";
+}
diff --git a/pngtool/frmpngtool.h b/pngtool/frmpngtool.h
new file mode 100644
index 0000000..7214868
--- /dev/null
+++ b/pngtool/frmpngtool.h
@@ -0,0 +1,28 @@
+#ifndef FRMPNGTOOL_H
+#define FRMPNGTOOL_H
+
+#include <QWidget>
+
+namespace Ui {
+class frmPngTool;
+}
+
+class frmPngTool : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit frmPngTool(QWidget *parent = 0);
+    ~frmPngTool();
+
+private slots:
+    void on_btnFile_clicked();
+    void on_btnDir_clicked();
+    void on_btnOk_clicked();
+
+private:
+    Ui::frmPngTool *ui;
+    QStringList files;
+};
+
+#endif // FRMPNGTOOL_H
diff --git a/pngtool/frmpngtool.ui b/pngtool/frmpngtool.ui
new file mode 100644
index 0000000..ca04371
--- /dev/null
+++ b/pngtool/frmpngtool.ui
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>frmPngTool</class>
+ <widget class="QWidget" name="frmPngTool">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>437</width>
+    <height>105</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="0">
+    <widget class="QLineEdit" name="txtDir"/>
+   </item>
+   <item row="1" column="1">
+    <widget class="QPushButton" name="btnDir">
+     <property name="text">
+      <string>选择目录</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLineEdit" name="txtFile"/>
+   </item>
+   <item row="0" column="1">
+    <widget class="QPushButton" name="btnFile">
+     <property name="text">
+      <string>选择文件</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0">
+    <widget class="QProgressBar" name="progress">
+     <property name="value">
+      <number>24</number>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="1">
+    <widget class="QPushButton" name="btnOk">
+     <property name="text">
+      <string>执行转换</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0">
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>40</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/pngtool/main.cpp b/pngtool/main.cpp
new file mode 100644
index 0000000..c2ef32c
--- /dev/null
+++ b/pngtool/main.cpp
@@ -0,0 +1,31 @@
+#pragma execution_character_set("utf-8")
+
+#include "frmpngtool.h"
+#include <QApplication>
+#include <QTextCodec>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    a.setFont(QFont("Microsoft Yahei", 9));
+
+#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
+#if _MSC_VER
+    QTextCodec *codec = QTextCodec::codecForName("gbk");
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+#endif
+    QTextCodec::setCodecForLocale(codec);
+    QTextCodec::setCodecForCStrings(codec);
+    QTextCodec::setCodecForTr(codec);
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+    QTextCodec::setCodecForLocale(codec);
+#endif
+
+    frmPngTool w;
+    w.setWindowTitle("PNG图片警告去除工具");
+    w.show();
+
+    return a.exec();
+}
diff --git a/pngtool/pngtool.pro b/pngtool/pngtool.pro
new file mode 100644
index 0000000..e3e86a8
--- /dev/null
+++ b/pngtool/pngtool.pro
@@ -0,0 +1,20 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2017-02-08T09:21:04
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET      = pngtool
+TEMPLATE    = app
+DESTDIR     = $$PWD/../bin
+CONFIG      += warn_off
+
+SOURCES     += main.cpp
+SOURCES     += frmpngtool.cpp
+HEADERS     += frmpngtool.h
+FORMS       += frmpngtool.ui
+