diff --git a/config/static/js/WebScan.js b/config/static/js/WebScan.js
index 449fd17..d8123e9 100644
--- a/config/static/js/WebScan.js
+++ b/config/static/js/WebScan.js
@@ -330,6 +330,41 @@
                 }
             })
         },
+        getHistoryImagesCount: function (callback) {
+            jQuery.ajax({
+                type: 'get',
+                url: this.url + "/image/getHistoryImagesCount",
+                data: {
+                    "pid": this.clientId
+                },
+                success: function (data) {
+                    callback(data);
+                },
+                error: function () {
+                    var result = new Result(500, "网络错误", null);
+                    callback(result);
+                }
+            })
+        },
+        getRangeImage: function (startIndex, count, callback) {
+            jQuery.ajax({
+                type: 'get',
+                url: this.url + "/image/getRangeImage",
+                cache: false,
+                data: {
+                    "pid": this.clientId,
+                    "startIndex": startIndex,
+                    "count": count
+                },
+                success: function (data) {
+                    callback(data);
+                },
+                error: function () {
+                    var result = new Result(500, "网络错误", null);
+                    callback(result);
+                }
+            })
+        },
         deleteImage: function (imageName, callback) {
             jQuery.ajax({
                 type: 'post',
diff --git a/config/static/js/scanWeb.js b/config/static/js/scanWeb.js
index 7336adf..2a170eb 100644
--- a/config/static/js/scanWeb.js
+++ b/config/static/js/scanWeb.js
@@ -27,6 +27,7 @@ new Vue({
             noiseDetachEnable: true,//去除噪点  scanner
             noiseDetach: 15,//噪点阈值  10-50  scanner
             prefix: '',
+            backRotate180: false,
             upload: {//上传参数
                 uploadMode: 2,//是否边扫边上传 0：http 1：ftp 2:不上传
                 httpUrl: '',//上传地址
@@ -219,7 +220,7 @@ new Vue({
                 "image": image,
                 "index": index
             }
-            console.log("selectImage: " + JSON.stringify(this.selectImageObj))
+            // console.log("selectImage: " + JSON.stringify(this.selectImageObj))
             this.loadImage(image);
             this.selectManyImages = new Array();
             this.selectManyImages.push(index);
@@ -269,21 +270,64 @@ new Vue({
                 }
                 that.pid = result.data;
                 //获取上次的扫描结果
-                that.getAllImages();
+                that.getHistoryImages();
                 that.getDevices();
                 loading.close();
             });
         },
-        getAllImages: function () {
-            var that = this;
-            var loading = this.eleLoadding();
-            this.WebScan.getAllImages(function (result) {
-                console.log("getAllImages: " + JSON.stringify(result))
+        /*  getAllImages: function () {
+              var that = this;
+              var loading = this.eleLoadding();
+              this.WebScan.getAllImages(function (result) {
+                  // console.log("getAllImages: " + JSON.stringify(result))
 
+                  loading.close();
+                  if (result.code == 200) {
+                      if (result.data != null && result.data.length > 0) {
+                          that.urls = result.data;
+                      }
+                  } else {
+                      that.eleMessage(result.msg, "warning");
+                  }
+              })
+          },*/
+        getHistoryImages: function () {
+            var that = this;
+            let loading = this.eleLoadding();
+
+            this.WebScan.getHistoryImagesCount(function (result) {
+                console.log("getHistoryImagesCount: " + JSON.stringify(result))
                 loading.close();
                 if (result.code == 200) {
-                    if (result.data != null && result.data.length > 0) {
-                        that.urls = result.data;
+                    if (result.data != null) {
+                        let count = result.data;
+                        that.urls = Array.from({length: count}, () => '');
+
+                        let onceCount = 40;
+                        let number = Math.floor(count / onceCount);
+                        if (count % onceCount != 0) {
+                            number = number + 1;
+                        }
+                        console.log("getRangeImage number: " + number)
+
+                        for (let i = 0; i < number; i++) {
+
+                            that.WebScan.getRangeImage(i * onceCount, onceCount, function (result) {
+                                // console.log("getRangeImage: " + JSON.stringify(result))
+
+                                let startIndex = parseInt(result.data.startIndex);
+
+                                let list = result.data.images;
+                                let length = list.length;
+
+                                console.log("getRangeImage length: " + length)
+
+                                for (let j = startIndex; j < startIndex + length; j++) {
+                                    that.urls[j] = list[j - startIndex].imageName
+                                }
+
+                            })
+                        }
                     }
                 } else {
                     that.eleMessage(result.msg, "warning");
@@ -868,7 +912,7 @@ new Vue({
             this.canvas.selection = true;
             this.canvas.on("mouse:down", function (e) {
                 that.startP = that.canvas.getPointer(e);
-                console.log(that.startP);
+                // console.log(that.startP);
             })
             that.canvas.on("mouse:up", function (e) {
                 var endPointer = that.canvas.getPointer(e);
@@ -1033,7 +1077,7 @@ new Vue({
 
             var that = this;
             var loading = this.eleLoadding();
-            console.log('save image  dataUrl:' + dataUrl)
+            // console.log('save image  dataUrl:' + dataUrl)
             this.WebScan.saveImage(this.imageName, dataUrl, function (result) {
                 loading.close();
                 if (result.code == 200) {
@@ -1055,7 +1099,7 @@ new Vue({
             var loading = this.eleLoadding();
             var that = this;
             this.WebScan.majorOFD(true, function (result) {
-                console.log("majorOFD: " + JSON.stringify(result))
+                // console.log("majorOFD: " + JSON.stringify(result))
 
                 loading.close();
                 if (result.code == 200) {
@@ -1092,7 +1136,7 @@ new Vue({
             var loading = this.eleLoadding();
             var that = this;
             this.WebScan.majorOFDFile(true, function (result) {
-                console.log("majorOFD: " + JSON.stringify(result))
+                // console.log("majorOFD: " + JSON.stringify(result))
 
                 loading.close();
                 if (result.status == 200) {
@@ -1123,7 +1167,7 @@ new Vue({
             var loading = this.eleLoadding();
             var that = this;
             this.WebScan.majorPDF(function (result) {
-                console.log("majorPDF: " + JSON.stringify(result))
+                // console.log("majorPDF: " + JSON.stringify(result))
 
                 loading.close();
                 if (result.code == 200) {
@@ -1160,7 +1204,7 @@ new Vue({
             var loading = this.eleLoadding();
             var that = this;
             this.WebScan.majorPDFFile(function (result) {
-                console.log("majorPDF: " + JSON.stringify(result.response))
+                // console.log("majorPDF: " + JSON.stringify(result.response))
 
                 loading.close();
                 if (result.status == 200) {
@@ -1193,7 +1237,7 @@ new Vue({
             var loading = this.eleLoadding();
             var that = this;
             this.WebScan.majorTiff(function (result) {
-                console.log("majorTiff: " + JSON.stringify(result))
+                // console.log("majorTiff: " + JSON.stringify(result))
 
                 loading.close();
                 if (result.code == 200) {
@@ -1230,7 +1274,7 @@ new Vue({
             var loading = this.eleLoadding();
             var that = this;
             this.WebScan.majorTiffFile(function (result) {
-                console.log("majorTiff: " + result)
+                // console.log("majorTiff: " + result)
 
                 loading.close();
                 if (result.status == 200) {
@@ -1264,7 +1308,7 @@ new Vue({
             var loading = this.eleLoadding();
             var that = this;
             this.WebScan.majorZip(function (result) {
-                console.log("majorZip: " + JSON.stringify(result))
+                // console.log("majorZip: " + JSON.stringify(result))
 
                 loading.close();
                 if (result.code == 200) {
@@ -1301,7 +1345,7 @@ new Vue({
             var loading = this.eleLoadding();
             var that = this;
             this.WebScan.majorZipFile(function (result) {
-                console.log("majorZip: " + JSON.stringify(result))
+                // console.log("majorZip: " + JSON.stringify(result))
 
                 loading.close();
                 if (result.status == 200) {
@@ -1482,7 +1526,7 @@ new Vue({
                                 that.WebScan.split(that.selectImageObj.image.imageName, isHorizontal, that.assistLine.x1,
                                     that.assistLine.y1, that.assistLine.x2, that.assistLine.y2, function (result) {
                                         loading.close();
-                                        console.log('拆分结果：' + JSON.stringify(result))
+                                        // console.log('拆分结果：' + JSON.stringify(result))
                                         if (result.code == 200) {
                                             that.eleMessage("切分成功", "success");
                                             that.selectImageObj.image.src = result.data.oneSrc;
@@ -1492,7 +1536,7 @@ new Vue({
                                                 "src": result.data.oneSrc
                                             }
                                             that.loadImage(currentImage)
-                                            that.getAllImages()
+                                            that.getHistoryImages()
                                         } else {
                                             that.eleMessage(result.msg, "warning");
                                         }
@@ -1534,7 +1578,7 @@ new Vue({
                                     "src": data.src,
                                     "imageName": data.imageName
                                 }
-                                that.getAllImages()
+                                that.getHistoryImages()
                                 that.loadImage(image)
                             } else {
                                 that.eleMessage(result.msg, "warning");
diff --git a/config/static/webScan.html b/config/static/webScan.html
index 0eab495..422295d 100644
--- a/config/static/webScan.html
+++ b/config/static/webScan.html
@@ -253,9 +253,9 @@
     <el-dialog
             title="扫描设定"
             :visible.sync="isSetup"
-            width="30%">
+            width="40%">
         <div class="messageBox">
-            <el-form ref="form" :model="form" :rules="rules" label-width="80px"
+            <el-form ref="form" :model="form" :rules="rules" label-width="120px"
                      style="padding-left:10px">
                 <el-tabs v-model="activeName">
                     <el-tab-pane label="扫描参数" name="1">
@@ -335,6 +335,9 @@
                                 <el-option label="270度" :value="270"></el-option>
                             </el-select>
                         </el-form-item>
+                        <el-form-item label="背面旋转180°">
+                            <el-switch v-model="form.backRotate180"></el-switch>
+                        </el-form-item>
                         <el-form-item label="图像分割">
                             <el-select v-model="form.splitImage" placeholder="图像分割">
                                 <el-option label="不分割" :value=0></el-option>