diff --git a/cope2n-fe/package-lock.json b/cope2n-fe/package-lock.json
index e5db921..46eca9d 100644
--- a/cope2n-fe/package-lock.json
+++ b/cope2n-fe/package-lock.json
@@ -14,6 +14,8 @@
         "@ant-design/pro-layout": "^7.10.3",
         "@babel/core": "^7.13.10",
         "@cyntler/react-doc-viewer": "^1.14.1",
+        "@react-pdf-viewer/core": "^3.12.0",
+        "@react-pdf-viewer/default-layout": "^3.12.0",
         "@tanstack/react-query": "^4.20.4",
         "antd": "^5.4.0",
         "axios": "^1.2.2",
@@ -21,6 +23,7 @@
         "history": "^5.3.0",
         "lodash-es": "^4.17.21",
         "mousetrap": "^1.6.5",
+        "pdfjs-dist": "^3.11.174",
         "process": "^0.11.10",
         "react": "^18.2.0",
         "react-chartjs-2": "^5.2.0",
@@ -3939,6 +3942,236 @@
         "react-dom": ">=16.9.0"
       }
     },
+    "node_modules/@react-pdf-viewer/attachment": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/attachment/-/attachment-3.12.0.tgz",
+      "integrity": "sha512-mhwrYJSIpCvHdERpLUotqhMgSjhtF+BTY1Yb9Fnzpcq3gLZP+Twp5Rynq21tCrVdDizPaVY7SKu400GkgdMfZw==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/bookmark": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/bookmark/-/bookmark-3.12.0.tgz",
+      "integrity": "sha512-i7nEit8vIFMAES8RFGwprZ9cXOOZb9ZStPW6E6yuObJEXcvBj/ctsbBJGZxqUZOGklM0JoB7sjHyxAriHfe92A==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/core": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/core/-/core-3.12.0.tgz",
+      "integrity": "sha512-8MsdlQJ4jaw3GT+zpCHS33nwnvzpY0ED6DEahZg9WngG++A5RMhk8LSlxdHelwaFFHFiXBjmOaj2Kpxh50VQRg==",
+      "peerDependencies": {
+        "pdfjs-dist": "^2.16.105 || ^3.0.279",
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/default-layout": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/default-layout/-/default-layout-3.12.0.tgz",
+      "integrity": "sha512-K2fS4+TJynHxxCBFuIDiFuAw3nqOh4bkBgtVZ/2pGvnFn9lLg46YGLMnTXCQqtyZzzXYh696jmlFViun3is4pA==",
+      "dependencies": {
+        "@react-pdf-viewer/attachment": "3.12.0",
+        "@react-pdf-viewer/bookmark": "3.12.0",
+        "@react-pdf-viewer/core": "3.12.0",
+        "@react-pdf-viewer/thumbnail": "3.12.0",
+        "@react-pdf-viewer/toolbar": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/full-screen": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/full-screen/-/full-screen-3.12.0.tgz",
+      "integrity": "sha512-hQouJ26QUaRBCXNMU1aI1zpJn4l4PJRvlHhuE2dZYtLl37ycjl7vBCQYZW1FwnuxMWztZsY47R43DKaZORg0pg==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/get-file": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/get-file/-/get-file-3.12.0.tgz",
+      "integrity": "sha512-Uhq45n2RWlZ7Ec/BtBJ0WQESRciaYIltveDXHNdWvXgFdOS8XsvB+mnTh/wzm7Cfl9hpPyzfeezifdU9AkQgQg==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/open": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/open/-/open-3.12.0.tgz",
+      "integrity": "sha512-vhiDEYsiQLxvZkIKT9VPYHZ1BOnv46x9eCEmRWxO1DJ8fa/GRDTA9ivXmq/ap0dGEJs6t+epleCkCEfllLR/Yw==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/page-navigation": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/page-navigation/-/page-navigation-3.12.0.tgz",
+      "integrity": "sha512-tVEJ48Dd5kajV1nKkrPWijglJRNBiKBTyYDKVexhiRdTHUP1f6QQXiSyDgCUb0IGSZeJzOJb1h7ApKHe8OTtuw==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/print": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/print/-/print-3.12.0.tgz",
+      "integrity": "sha512-xJn76CgbU/M2iNaN7wLHTg+sdOekkRMfCakFLwPrE+SR7qD6NUF4vQQKJBSVCCK5bUijzb6cWfKGfo8VA72o4Q==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/properties": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/properties/-/properties-3.12.0.tgz",
+      "integrity": "sha512-dYTCHtVwFNkpDo7QxL2qk/8zAKndLwdD1FFxBftl6jIlQbtvNdxkFfkv1HcQING9Ic+7DBryOiD7W0ze4IERYg==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/rotate": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/rotate/-/rotate-3.12.0.tgz",
+      "integrity": "sha512-yaxaMYPChvNOjR8+AxRmj0kvojyJKPq4XHEcIB2lJJgBY1Zra3mliDUP3Nlb4yV8BS9+yBqWn9U9mtnopQD+tw==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/scroll-mode": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/scroll-mode/-/scroll-mode-3.12.0.tgz",
+      "integrity": "sha512-okII7Xqhl6cMvl1izdEvlXNJ+vJVq/qdg53hJIDYVgBCWskLk/cpjUg/ZonBxseG9lIDP3w2VO1McT8Gn11OAg==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/search": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/search/-/search-3.12.0.tgz",
+      "integrity": "sha512-jAkLpis49fsDDY/HrbUZIOIhzF5vynONQNA4INQKI38r/MjveblrkNv7qbr9j5lQ/WFic5+gD1e+Mtpf1/7DiA==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/selection-mode": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/selection-mode/-/selection-mode-3.12.0.tgz",
+      "integrity": "sha512-yysWEu2aCtBvzSgbhgI9kT5cq2hf0FU6Z+3B7MMXz14Kxyc3y18wUqxtgbvpFEfWF0bNUUq16JtWRljtxvZ83w==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/theme": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/theme/-/theme-3.12.0.tgz",
+      "integrity": "sha512-cdBi+wR1VOZ6URCcO9plmAZQu4ZGFcd7HJdBe7VIFiGyrvl9I/Of74ONLycnDImSuONt8D3uNjPBLieeaShVeg==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/thumbnail": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/thumbnail/-/thumbnail-3.12.0.tgz",
+      "integrity": "sha512-Vc8j3bO6wumWZV4o6pAbktPWKDSC9tQAzOCJ3cof541u4i44C11ccYC4W9aNcsMMUSO3bNwAGWtP8OFthV5akQ==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/toolbar": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/toolbar/-/toolbar-3.12.0.tgz",
+      "integrity": "sha512-qACTU3qXHgtNK8J+T13EWio+0liilj86SJ87BdapqXynhl720OKPlSKOQqskUGqg3oTUJAhrse9XG6SFdHJx+g==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0",
+        "@react-pdf-viewer/full-screen": "3.12.0",
+        "@react-pdf-viewer/get-file": "3.12.0",
+        "@react-pdf-viewer/open": "3.12.0",
+        "@react-pdf-viewer/page-navigation": "3.12.0",
+        "@react-pdf-viewer/print": "3.12.0",
+        "@react-pdf-viewer/properties": "3.12.0",
+        "@react-pdf-viewer/rotate": "3.12.0",
+        "@react-pdf-viewer/scroll-mode": "3.12.0",
+        "@react-pdf-viewer/search": "3.12.0",
+        "@react-pdf-viewer/selection-mode": "3.12.0",
+        "@react-pdf-viewer/theme": "3.12.0",
+        "@react-pdf-viewer/zoom": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@react-pdf-viewer/zoom": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf-viewer/zoom/-/zoom-3.12.0.tgz",
+      "integrity": "sha512-V0GUTyPM77+LzhoKX+T3XI10/HfGdqRTbgeP7ID60FCzcwu6kXWqJn5tzabjDKLTlFv8mJmn0aa/ppkIU97nfA==",
+      "dependencies": {
+        "@react-pdf-viewer/core": "3.12.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
     "node_modules/@remix-run/router": {
       "version": "1.14.2",
       "resolved": "https://registry.npmjs.org/@remix-run/router/-/router-1.14.2.tgz",
diff --git a/cope2n-fe/package.json b/cope2n-fe/package.json
index 769f0c1..7798b18 100644
--- a/cope2n-fe/package.json
+++ b/cope2n-fe/package.json
@@ -32,6 +32,8 @@
     "@ant-design/pro-layout": "^7.10.3",
     "@babel/core": "^7.13.10",
     "@cyntler/react-doc-viewer": "^1.14.1",
+    "@react-pdf-viewer/core": "^3.12.0",
+    "@react-pdf-viewer/default-layout": "^3.12.0",
     "@tanstack/react-query": "^4.20.4",
     "antd": "^5.4.0",
     "axios": "^1.2.2",
@@ -39,6 +41,7 @@
     "history": "^5.3.0",
     "lodash-es": "^4.17.21",
     "mousetrap": "^1.6.5",
+    "pdfjs-dist": "^3.11.174",
     "process": "^0.11.10",
     "react": "^18.2.0",
     "react-chartjs-2": "^5.2.0",
diff --git a/cope2n-fe/src/index.tsx b/cope2n-fe/src/index.tsx
index c3a45a1..3e7f2b1 100644
--- a/cope2n-fe/src/index.tsx
+++ b/cope2n-fe/src/index.tsx
@@ -6,6 +6,7 @@ import { queryClient } from 'queries';
 import { Suspense } from 'react';
 import { createRoot } from 'react-dom/client';
 import AppRoutes from 'routes';
+import { Worker } from '@react-pdf-viewer/core';
 
 import 'antd/dist/reset.css';
 import './theme/compose.scss';
@@ -16,7 +17,9 @@ function App() {
       <QueryClientProvider client={queryClient}>
         <Internationalization>
           {/* <AbilityContext.Provider value={appAbilitiy}> */}
+          <Worker workerUrl="https://unpkg.com/pdfjs-dist@3.11.174/build/pdf.worker.min.js">
           <AppRoutes />
+          </Worker>
           {/* </AbilityContext.Provider> */}
         </Internationalization>
         <ReactQueryDevtools initialIsOpen={false} />
diff --git a/cope2n-fe/src/pages/reviews/index.tsx b/cope2n-fe/src/pages/reviews/index.tsx
index 5bda53f..f9f2d2a 100644
--- a/cope2n-fe/src/pages/reviews/index.tsx
+++ b/cope2n-fe/src/pages/reviews/index.tsx
@@ -11,12 +11,15 @@ import {
   FullscreenExitOutlined,
   ClockCircleFilled,
 } from '@ant-design/icons';
-import FileViewer from '@cyntler/react-doc-viewer';
 import styled from 'styled-components';
 const { Sider, Content } = Layout;
 import { baseURL } from "request/api";
-import moment from 'moment';
 import { useHotkeys } from "react-hotkeys-hook";
+// Import the main component
+import { Viewer } from '@react-pdf-viewer/core';
+
+// Import the styles
+import '@react-pdf-viewer/core/lib/styles/index.css';
 
 
 const siderStyle: React.CSSProperties = {
@@ -133,32 +136,6 @@ const EditableCell: React.FC<EditableCellProps> = ({
 
 // type EditableTableProps = Parameters<typeof Table>[0];
 
-const defaultColumns = [
-  {
-    title: 'Key',
-    dataIndex: 'key',
-    key: 'key',
-    width: 200,
-  },
-  {
-    title: 'Predicted',
-    dataIndex: 'predicted',
-    key: 'predicted',
-  },
-  {
-    title: 'Submitted',
-    dataIndex: 'submitted',
-    key: 'submitted',
-  },
-  {
-    title: 'Revised',
-    dataIndex: 'revised',
-    key: 'revised',
-    editable: true,
-  },
-];
-
-
 const FileCard = ({ file, isSelected, onClick, setIsReasonModalOpen }) => {
   const fileName = file["File Name"];
 
@@ -311,9 +288,9 @@ const ReviewPage = () => {
     }
   };
 
-  const loadCurrentRequest = (requestID) => {
+  const loadCurrentRequest = (requestIndex) => {
     setLoading(true);
-    fetchAllRequests(filterDateRange, filterSubsidiaries, filterReviewState, filterIncludeTests, requestID, 2).then((data) => {
+    fetchAllRequests(filterDateRange, filterSubsidiaries, filterReviewState, filterIncludeTests, requestIndex, 1).then((data) => {
       setRequests(data?.subscription_requests);
       setHasNextRequest(data?.subscription_requests.length > 1);
       setTotalPages(data?.page?.total_requests);
@@ -364,7 +341,7 @@ const ReviewPage = () => {
 
   const reloadFilters = () => {
     setCurrentRequestIndex(1);
-    fetchAllRequests(filterDateRange, filterSubsidiaries, filterReviewState, filterIncludeTests, currentRequestIndex, 2).then((data) => {
+    fetchAllRequests(filterDateRange, filterSubsidiaries, filterReviewState, filterIncludeTests, 1, 2).then((data) => {
       setTotalPages(data?.page?.total_requests);
       setRequests(data?.subscription_requests);
       setHasNextRequest(data?.subscription_requests.length > 1);
@@ -372,6 +349,9 @@ const ReviewPage = () => {
       firstRequest.then(async (data) => {
         if (data) setCurrentRequest(data);
         setAndLoadSelectedFile(data, 0);
+        setTimeout(() => {
+          loadCurrentRequest(1);
+        }, 500);
       });
     });
 
@@ -379,7 +359,7 @@ const ReviewPage = () => {
 
   useEffect(() => {
     setCurrentRequestIndex(1);
-    fetchAllRequests(filterDateRange, filterSubsidiaries, filterReviewState, filterIncludeTests, currentRequestIndex, 2).then((data) => {
+    fetchAllRequests(filterDateRange, filterSubsidiaries, filterReviewState, filterIncludeTests, 1, 2).then((data) => {
       setTotalPages(data?.page?.total_requests);
       setRequests(data?.subscription_requests);
       setHasNextRequest(data?.subscription_requests.length > 1);
@@ -446,6 +426,89 @@ const ReviewPage = () => {
     })
   };
 
+  const submitRevisedData = async () => {
+    const newData = [...dataSource];
+    const newRevisedData = {};
+    for (let i = 0; i < newData.length; i++) {
+      newRevisedData[newData[i].key] = newData[i].revised;
+    }
+    console.log(currentRequest)
+    updateRevisedData(newRevisedData).then(() => {
+      // "[Is Reviewed]" => true
+      setCurrentRequest({
+        ...currentRequest,
+        ["Is Reviewed"]: true,
+      })
+    })
+  };
+
+
+  const defaultColumns = [
+    {
+      title: 'Key',
+      dataIndex: 'key',
+      key: 'key',
+      width: 200,
+    },
+    {
+      title: 'Predicted',
+      dataIndex: 'predicted',
+      key: 'predicted',
+    },
+    {
+      title: 'Submitted',
+      dataIndex: 'submitted',
+      key: 'submitted',
+    },
+    {
+      title: (<div style={{
+        width: 120,
+        display: 'flex',
+        lineHeight: '32px',
+        marginLeft: 10,
+      }}>Revised&nbsp;&nbsp;
+        <Button
+          onClick={() => {
+            if (!dataSource || !dataSource.length) return;
+            setDataSource(dataSource.map(item => {
+              item.revised = item.predicted;
+              return item;
+            }));
+            setTimeout(() => {
+              submitRevisedData();
+            }, 1000);
+          }}
+        >
+          Copy Predicted
+        </Button>
+        <Button
+          onClick={() => {
+            if (!dataSource || !dataSource.length) return;
+            setDataSource(dataSource.map(item => {
+              item.revised = item.submitted;
+              return item;
+            }));
+            setTimeout(() => {
+              submitRevisedData();
+            }, 1000);
+          }}
+        >
+          Copy Submitted
+        </Button>
+      </div>),
+      dataIndex: 'revised',
+      key: 'revised',
+      editable: true,
+      render: (text, record) => {
+        return <div style={{
+          color: '#000',
+          fontWeight: 'bold',
+        }}>{text}</div>;
+      },
+    },
+  ];
+
+
   const columns = defaultColumns.map((col) => {
     if (!col.editable) {
       return col;
@@ -549,17 +612,9 @@ const ReviewPage = () => {
             flexGrow: 1,
             height: '100%',
           }}>
-            {selectedFileData === "FAILED_TO_LOAD_FILE" ? <p style={{ color: "#333" }}>Failed to load file.</p> : ( fileExtension === "pdf" ? (<FileViewer documents={[
-              { uri: selectedFileData }
-            ]} config={{
-              header: {
-                disableHeader: true,
-                disableFileName: true,
-                retainURLParams: true,
-              },
-              csvDelimiter: ",", // "," as default,
-              pdfVerticalScrollByDefault: true, // false as default
-            }} />) : <div style={{
+            {selectedFileData === "FAILED_TO_LOAD_FILE" ? <p style={{ color: "#333" }}>Failed to load file.</p> : (fileExtension === "pdf" ? (<Viewer
+              fileUrl={selectedFileData}
+            />) : <div style={{
               height: "100%",
               width: "100%",
               overflow: "auto",
@@ -777,7 +832,6 @@ const ReviewPage = () => {
           }
         }
       >
-        {currentRequest && JSON.stringify(currentRequest["Files"][selectedFileId])}
         <Form
           style={{
             marginTop: 30,