diff --git a/document/前端生成PDF并上传后端技术方案.md b/document/前端生成PDF并上传后端技术方案.md
new file mode 100644
index 00000000..6dde504f
--- /dev/null
+++ b/document/前端生成PDF并上传后端技术方案.md
@@ -0,0 +1,113 @@
+# 前端生成 PDF 并上传后端技术方案
+
+## 概述
+- 目标：诊断报告页面在前端生成高保真 PDF，上传到 Python 后端持久化，并把文件路径写入对应检测会话。
+- 推荐：使用 Electron 主进程 `webContents.printToPDF` 生成 PDF，忠实度高、分页与中文字体友好；作为短期备选，提供 `html2canvas` 截图转 PDF 的实现。
+
+## 架构流程
+- 前端渲染进程：用户在报告页面点击“生成报告”→ 发送 IPC 请求至主进程生成 PDF → 主进程返回 PDF Buffer 给渲染进程 → 渲染进程上传后端。
+- Python 后端：接收 PDF 文件流，写入 `backend/static/reports/<YYYY-MM-DD>/<session_id>.pdf`，记录相对路径到 `detection_sessions` 的报告字段。
+
+## 前端实现（Electron 渲染）
+### 报告页面打印版式
+- 报告根容器，例如 `#report-root`。
+- 打印样式建议：
+  - `@page { size: A4; margin: 12mm }`
+  - 固定宽度设计为 A4 比例，非交互元素隐藏，保留背景。
+  - 通过添加类名（例如 `.print-mode`）切换打印样式。
+
+### 渲染进程触发生成
+```ts
+// renderer: 诊断报告视图中
+import { ipcRenderer } from 'electron'
+
+async function generatePdf(sessionId: string) {
+  const pdfBuffer: ArrayBuffer = await ipcRenderer.invoke('generate-report-pdf', {
+    selector: '#report-root',
+    pageSize: 'A4',
+    printBackground: true
+  })
+  const blob = new Blob([pdfBuffer], { type: 'application/pdf' })
+  const form = new FormData()
+  form.append('file', blob, `${sessionId}.pdf`)
+
+  const res = await fetch(`${getBackendUrl()}/api/reports/${sessionId}/upload`, {
+    method: 'POST',
+    body: form
+  })
+  const json = await res.json()
+  if (!json.success) throw new Error(json.error || '上传失败')
+}
+```
+
+### 主进程生成 PDF
+```ts
+// main: 注册 IPC 处理
+import { ipcMain } from 'electron'
+
+ipcMain.handle('generate-report-pdf', async (event, payload) => {
+  const win = event.sender.getOwnerBrowserWindow()
+  await win.webContents.executeJavaScript(`
+    (function(){
+      const root = document.querySelector('${payload.selector}')
+      if (!root) throw new Error('报告根节点缺失')
+      document.body.classList.add('print-mode')
+      return true
+    })()
+  `)
+  const pdf = await win.webContents.printToPDF({
+    pageSize: payload.pageSize || 'A4',
+    printBackground: payload.printBackground !== false,
+    marginsType: 0
+  })
+  await win.webContents.executeJavaScript(`
+    (function(){ document.body.classList.remove('print-mode'); return true })()
+  `)
+  return pdf
+})
+```
+
+### 更新数据库记录
+```py
+# database.py 片段
+def update_session_report_path(self, session_id: str, report_path: str):
+    conn = self.get_connection()
+    cursor = conn.cursor()
+    cursor.execute('UPDATE detection_sessions SET detection_report = ? WHERE id = ?', (report_path, session_id))
+    conn.commit()
+```
+
+## 接口设计
+- 上传 PDF：`POST /api/reports/<session_id>/upload`
+  - 请求体：`multipart/form-data`，字段 `file`
+  - 返回：`{ success, path }`
+
+## 权限与安全
+- 校验 `session_id` 存在且归属当前登录用户（医生）。
+- 限制最大文件大小（例如 20MB），拒绝超限上传。
+- 文件名使用 `session_id.pdf`，避免任意文件名写盘。
+
+## 版式与质量建议
+- 中文字体：在渲染环境预装中文字体或通过 `@font-face` 引入。
+- 分页：使用 `@page` 与 `page-break-before/after` 控制分页。
+- 背景：Electron 打印需开启 `printBackground: true`；确保 CSS 背景不被打印忽略。
+
+## 错误与排查
+- 空白 PDF：确保打印前切入 `.print-mode` 并等待资源加载；检查选择器是否找到根节点。
+- 字体方框：安装中文字体或嵌入字体文件。
+- 资源丢失：使用相对路径或 base64；`html2canvas` 时启用 `useCORS` 且服务器设置跨域头。
+- 过大或截断：分页控制，或拆页生成。
+
+## 测试用例
+- 单页报告：生成并上传，后端返回路径；数据库记录更新；历史档案中可下载或预览。
+- 多页报告：存在分页断点，打印后为多页；每页标题和页码正常。
+- 异常：网络断开、文件超限、会话不存在；前端提示具体错误。
+
+## 部署说明
+- Electron 打包：已使用 `electron-builder`；生成 exe 后功能一致。
+- 后端存储：Windows 下路径统一使用 `/` 展示；静态文件由后端提供下载或前端拼接 `BACKEND_URL + '/' + path` 访问。
+
+## 后续扩展
+- 加页眉页脚（时间、患者信息、页码）。
+- 报告水印与签章。
+- 历史报告下载与比对视图。
diff --git a/frontend/src/renderer/dist-electron-install/win-unpacked/resources/backend/Log/OrbbecSDK.log.txt b/frontend/src/renderer/dist-electron-install/win-unpacked/resources/backend/Log/OrbbecSDK.log.txt
index c0e30c17..fc9daa39 100644
Binary files a/frontend/src/renderer/dist-electron-install/win-unpacked/resources/backend/Log/OrbbecSDK.log.txt and b/frontend/src/renderer/dist-electron-install/win-unpacked/resources/backend/Log/OrbbecSDK.log.txt differ
diff --git a/frontend/src/renderer/dist-electron-install/win-unpacked/resources/config.ini b/frontend/src/renderer/dist-electron-install/win-unpacked/resources/config.ini
index 244e7630..efa5f6ce 100644
--- a/frontend/src/renderer/dist-electron-install/win-unpacked/resources/config.ini
+++ b/frontend/src/renderer/dist-electron-install/win-unpacked/resources/config.ini
@@ -35,7 +35,7 @@ chart_dpi = 300
 export_format = csv
 
 [SECURITY]
-secret_key = 579012d21afe892d663698a0875c78112bb7e73e949a0d9f591515cd7fce183b
+secret_key = 55827ba4bade0523f51434154820c1809de46588877d911e4395d2c235cf5de5
 session_timeout = 3600
 max_login_attempts = 5
 
diff --git a/frontend/src/renderer/package-lock.json b/frontend/src/renderer/package-lock.json
index 173ed90c..23090457 100644
--- a/frontend/src/renderer/package-lock.json
+++ b/frontend/src/renderer/package-lock.json
@@ -13,6 +13,7 @@
         "echarts": "^5.4.3",
         "element-plus": "^2.3.9",
         "html2canvas": "^1.4.1",
+        "jspdf": "^3.0.4",
         "pinia": "^2.1.6",
         "socket.io-client": "^4.7.2",
         "three": "^0.160.0",
@@ -64,10 +65,9 @@
       }
     },
     "node_modules/@babel/runtime": {
-      "version": "7.28.2",
-      "resolved": "https://registry.npmmirror.com/@babel/runtime/-/runtime-7.28.2.tgz",
-      "integrity": "sha512-KHp2IflsnGywDjBWDkR9iEqiWSpc8GIi0lgTT3mOElT0PP1tG26P4tmFI2YvAdzgq9RGyoHZQEIEdZy6Ec5xCA==",
-      "dev": true,
+      "version": "7.28.4",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.28.4.tgz",
+      "integrity": "sha512-Q/N6JNWvIvPnLDvjlE1OUBLPQHH6l3CltCEsHIujp45zQUSSh8K+gHnaEX45yAT1nyngnINhvWtzN+Nb9D8RAQ==",
       "license": "MIT",
       "engines": {
         "node": ">=6.9.0"
@@ -1168,6 +1168,12 @@
         "undici-types": "~5.26.4"
       }
     },
+    "node_modules/@types/pako": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/@types/pako/-/pako-2.0.4.tgz",
+      "integrity": "sha512-VWDCbrLeVXJM9fihYodcLiIv0ku+AlOa/TQ1SvYOaBuyrSKgEcro95LJyIsJ4vSo6BXIxOKxiJAat04CmST9Fw==",
+      "license": "MIT"
+    },
     "node_modules/@types/plist": {
       "version": "3.0.5",
       "resolved": "https://registry.npmmirror.com/@types/plist/-/plist-3.0.5.tgz",
@@ -1180,6 +1186,13 @@
         "xmlbuilder": ">=11.0.1"
       }
     },
+    "node_modules/@types/raf": {
+      "version": "3.4.3",
+      "resolved": "https://registry.npmjs.org/@types/raf/-/raf-3.4.3.tgz",
+      "integrity": "sha512-c4YAvMedbPZ5tEyxzQdMoOhhJ4RD3rngZIdwC2/qDN3d7JpEhB6fiBRKVY1lg5B7Wk+uPBjn5f39j1/2MY1oOw==",
+      "license": "MIT",
+      "optional": true
+    },
     "node_modules/@types/responselike": {
       "version": "1.0.3",
       "resolved": "https://registry.npmmirror.com/@types/responselike/-/responselike-1.0.3.tgz",
@@ -1190,6 +1203,13 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/trusted-types": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
+      "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==",
+      "license": "MIT",
+      "optional": true
+    },
     "node_modules/@types/verror": {
       "version": "1.10.11",
       "resolved": "https://registry.npmmirror.com/@types/verror/-/verror-1.10.11.tgz",
@@ -1732,7 +1752,7 @@
     },
     "node_modules/base64-arraybuffer": {
       "version": "1.0.2",
-      "resolved": "https://registry.npmmirror.com/base64-arraybuffer/-/base64-arraybuffer-1.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-1.0.2.tgz",
       "integrity": "sha512-I3yl4r9QB5ZRY3XuJVEPfc2XhZO6YweFPI+UovAzn+8/hb3oJ6lnysaFcjVpkCPfVWFUDvoZ8kmVDP7WyRtYtQ==",
       "license": "MIT",
       "engines": {
@@ -1983,6 +2003,26 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/canvg": {
+      "version": "3.0.11",
+      "resolved": "https://registry.npmjs.org/canvg/-/canvg-3.0.11.tgz",
+      "integrity": "sha512-5ON+q7jCTgMp9cjpu4Jo6XbvfYwSB2Ow3kzHKfIyJfaCAOHLbdKPQqGKgfED/R5B+3TFFfe8pegYA+b423SRyA==",
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "@babel/runtime": "^7.12.5",
+        "@types/raf": "^3.4.0",
+        "core-js": "^3.8.3",
+        "raf": "^3.4.1",
+        "regenerator-runtime": "^0.13.7",
+        "rgbcolor": "^1.0.1",
+        "stackblur-canvas": "^2.0.0",
+        "svg-pathdata": "^6.0.3"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/chalk": {
       "version": "4.1.2",
       "resolved": "https://registry.npmmirror.com/chalk/-/chalk-4.1.2.tgz",
@@ -2254,6 +2294,18 @@
         "node": ">=16 || 14 >=14.17"
       }
     },
+    "node_modules/core-js": {
+      "version": "3.47.0",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.47.0.tgz",
+      "integrity": "sha512-c3Q2VVkGAUyupsjRnaNX6u8Dq2vAdzm9iuPj5FW0fRxzlxgq9Q39MDq10IvmQSpLgHQNyQzQmOo6bgGHmH3NNg==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/core-js"
+      }
+    },
     "node_modules/core-util-is": {
       "version": "1.0.2",
       "resolved": "https://registry.npmmirror.com/core-util-is/-/core-util-is-1.0.2.tgz",
@@ -2343,7 +2395,7 @@
     },
     "node_modules/css-line-break": {
       "version": "2.1.0",
-      "resolved": "https://registry.npmmirror.com/css-line-break/-/css-line-break-2.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/css-line-break/-/css-line-break-2.1.0.tgz",
       "integrity": "sha512-FHcKFCZcAha3LwfVBhCQbW2nCNbkZXn7KVUJcsT5/P8YmfsVja0FMPJr0B903j/E69HUphKiV9iQArX8SDYA4w==",
       "license": "MIT",
       "dependencies": {
@@ -2609,6 +2661,16 @@
         "node": ">=8"
       }
     },
+    "node_modules/dompurify": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.0.tgz",
+      "integrity": "sha512-r+f6MYR1gGN1eJv0TVQbhA7if/U7P87cdPl3HN5rikqaBSBxLiCb/b9O+2eG0cxz0ghyU+mU1QkbsOwERMYlWQ==",
+      "license": "(MPL-2.0 OR Apache-2.0)",
+      "optional": true,
+      "optionalDependencies": {
+        "@types/trusted-types": "^2.0.7"
+      }
+    },
     "node_modules/dotenv": {
       "version": "9.0.2",
       "resolved": "https://registry.npmmirror.com/dotenv/-/dotenv-9.0.2.tgz",
@@ -3279,6 +3341,17 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/fast-png": {
+      "version": "6.4.0",
+      "resolved": "https://registry.npmjs.org/fast-png/-/fast-png-6.4.0.tgz",
+      "integrity": "sha512-kAqZq1TlgBjZcLr5mcN6NP5Rv4V2f22z00c3g8vRrwkcqjerx7BEhPbOnWCPqaHUl2XWQBJQvOT/FQhdMT7X/Q==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/pako": "^2.0.3",
+        "iobuffer": "^5.3.2",
+        "pako": "^2.1.0"
+      }
+    },
     "node_modules/fd-slicer": {
       "version": "1.1.0",
       "resolved": "https://registry.npmmirror.com/fd-slicer/-/fd-slicer-1.1.0.tgz",
@@ -3289,6 +3362,12 @@
         "pend": "~1.2.0"
       }
     },
+    "node_modules/fflate": {
+      "version": "0.8.2",
+      "resolved": "https://registry.npmjs.org/fflate/-/fflate-0.8.2.tgz",
+      "integrity": "sha512-cPJU47OaAoCbg0pBvzsgpTPhmhqI5eJjh/JIu8tPj5q+T7iLvW/JAYUqmE7KOB4R1ZyEhzBaIQpQpardBF5z8A==",
+      "license": "MIT"
+    },
     "node_modules/filelist": {
       "version": "1.0.4",
       "resolved": "https://registry.npmmirror.com/filelist/-/filelist-1.0.4.tgz",
@@ -3894,7 +3973,7 @@
     },
     "node_modules/html2canvas": {
       "version": "1.4.1",
-      "resolved": "https://registry.npmmirror.com/html2canvas/-/html2canvas-1.4.1.tgz",
+      "resolved": "https://registry.npmjs.org/html2canvas/-/html2canvas-1.4.1.tgz",
       "integrity": "sha512-fPU6BHNpsyIhr8yyMpTLLxAbkaK8ArIBcmZIRiBLiDhjeqvXolaEmDGmELFuX9I4xDcaKKcJl+TKZLqruBbmWA==",
       "license": "MIT",
       "dependencies": {
@@ -4026,6 +4105,12 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/iobuffer": {
+      "version": "5.4.0",
+      "resolved": "https://registry.npmjs.org/iobuffer/-/iobuffer-5.4.0.tgz",
+      "integrity": "sha512-DRebOWuqDvxunfkNJAlc3IzWIPD5xVxwUNbHr7xKB8E6aLJxIPfNX3CoMJghcFjpv6RWQsrcJbghtEwSPoJqMA==",
+      "license": "MIT"
+    },
     "node_modules/is-arrayish": {
       "version": "0.2.1",
       "resolved": "https://registry.npmmirror.com/is-arrayish/-/is-arrayish-0.2.1.tgz",
@@ -4235,6 +4320,23 @@
         "graceful-fs": "^4.1.6"
       }
     },
+    "node_modules/jspdf": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/jspdf/-/jspdf-3.0.4.tgz",
+      "integrity": "sha512-dc6oQ8y37rRcHn316s4ngz/nOjayLF/FFxBF4V9zamQKRqXxyiH1zagkCdktdWhtoQId5K20xt1lB90XzkB+hQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.28.4",
+        "fast-png": "^6.2.0",
+        "fflate": "^0.8.1"
+      },
+      "optionalDependencies": {
+        "canvg": "^3.0.11",
+        "core-js": "^3.6.0",
+        "dompurify": "^3.2.4",
+        "html2canvas": "^1.0.0-rc.5"
+      }
+    },
     "node_modules/junk": {
       "version": "3.1.0",
       "resolved": "https://registry.npmmirror.com/junk/-/junk-3.1.0.tgz",
@@ -4757,6 +4859,12 @@
       "dev": true,
       "license": "BlueOak-1.0.0"
     },
+    "node_modules/pako": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-2.1.0.tgz",
+      "integrity": "sha512-w+eufiZ1WuJYgPXbV/PO3NCMEc3xqylkKHzp8bxp1uW4qaSNQUkwmLLEc3kKsfz8lpV1F8Ht3U1Cm+9Srog2ug==",
+      "license": "(MIT AND Zlib)"
+    },
     "node_modules/parse-author": {
       "version": "2.0.0",
       "resolved": "https://registry.npmmirror.com/parse-author/-/parse-author-2.0.0.tgz",
@@ -4864,6 +4972,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/performance-now": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
+      "integrity": "sha512-7EAHlyLHI56VEIdK57uwHdHKIaAGbnXPiw0yWbarQZOKaKpvUIgW0jWRVLiatnM+XXlSwsanIBH/hzGMJulMow==",
+      "license": "MIT",
+      "optional": true
+    },
     "node_modules/picocolors": {
       "version": "1.1.1",
       "resolved": "https://registry.npmmirror.com/picocolors/-/picocolors-1.1.1.tgz",
@@ -5017,6 +5132,16 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/raf": {
+      "version": "3.4.1",
+      "resolved": "https://registry.npmjs.org/raf/-/raf-3.4.1.tgz",
+      "integrity": "sha512-Sq4CW4QhwOHE8ucn6J34MqtZCeWFP2aQSmrlroYgqAV1PjStIhJXxYuTgUIfkEk7zTLjmIjLmU5q+fbD1NnOJA==",
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "performance-now": "^2.1.0"
+      }
+    },
     "node_modules/rcedit": {
       "version": "3.1.0",
       "resolved": "https://registry.npmmirror.com/rcedit/-/rcedit-3.1.0.tgz",
@@ -5104,6 +5229,13 @@
         "minimatch": "^5.1.0"
       }
     },
+    "node_modules/regenerator-runtime": {
+      "version": "0.13.11",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.11.tgz",
+      "integrity": "sha512-kY1AZVr2Ra+t+piVaJ4gxaFaReZVH40AKNo7UCX6W+dEwBo/2oZJzqfuN1qLq1oL45o56cPaTXELwrTh8Fpggg==",
+      "license": "MIT",
+      "optional": true
+    },
     "node_modules/require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmmirror.com/require-directory/-/require-directory-2.1.1.tgz",
@@ -5171,6 +5303,16 @@
         "node": ">= 4"
       }
     },
+    "node_modules/rgbcolor": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/rgbcolor/-/rgbcolor-1.0.1.tgz",
+      "integrity": "sha512-9aZLIrhRaD97sgVhtJOW6ckOEh6/GnvQtdVNfdZ6s67+3/XwLS9lBcQYzEEhYVeUowN7pRzMLsyGhK2i/xvWbw==",
+      "license": "MIT OR SEE LICENSE IN FEEL-FREE.md",
+      "optional": true,
+      "engines": {
+        "node": ">= 0.8.15"
+      }
+    },
     "node_modules/roarr": {
       "version": "2.15.4",
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@@ -5543,6 +5685,16 @@
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