diff --git a/src/pages/api/ApiDebugger.vue b/src/pages/api/ApiDebugger.vue
index a9e8f6d..b3bef02 100644
--- a/src/pages/api/ApiDebugger.vue
+++ b/src/pages/api/ApiDebugger.vue
@@ -618,11 +618,11 @@
 
 <script setup>
 import { apiApi, apiKeysApi, consoleApi, formConfigApi, productApi, subscriptionApi } from '@/api'
+import { useUserStore } from '@/stores/user'
 import { ElMessage } from 'element-plus'
 import { marked } from 'marked'
 import { computed, nextTick, onMounted, reactive, ref, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
-import { useUserStore } from '@/stores/user'
 
 import CodeDisplay from '@/components/common/CodeDisplay.vue'
 
@@ -951,6 +951,11 @@ const isBase64ImageOnlyField = (field) => {
   return getFieldValidationText(field).includes('Base64图片')
 }
 
+/** PDF 专用 Base64 字段（与后端 validBase64PDF：仅 PDF、≤500KB） */
+const isBase64PDFField = (field) => {
+  return getFieldValidationText(field).includes('仅PDF')
+}
+
 const isBase64UploadField = (field) => {
   if (field?.type !== 'textarea') return false
   const validationText = getFieldValidationText(field)
@@ -958,6 +963,9 @@ const isBase64UploadField = (field) => {
 }
 
 const getUploadAcceptByField = (field) => {
+  if (isBase64PDFField(field)) {
+    return 'application/pdf,.pdf'
+  }
   if (isBase64ImageOnlyField(field)) {
     return 'image/jpeg,image/jpg,image/png,image/bmp'
   }
@@ -965,6 +973,9 @@ const getUploadAcceptByField = (field) => {
 }
 
 const getUploadButtonTextByField = (field) => {
+  if (isBase64PDFField(field)) {
+    return '上传 PDF 授权书'
+  }
   return isBase64ImageOnlyField(field) ? '上传图片（JPG/BMP/PNG）' : '上传文件（JPG/BMP/PNG/PDF）'
 }
 
@@ -973,18 +984,27 @@ const handleImageUpload = (file, fieldName, field) => {
   const fileObj = file.raw || file
 
   // 验证文件类型
-  const allowedTypes = isBase64ImageOnlyField(field)
-    ? ['image/jpeg', 'image/jpg', 'image/png', 'image/bmp']
-    : ['image/jpeg', 'image/jpg', 'image/png', 'image/bmp', 'application/pdf']
+  let allowedTypes
+  let typeErrMsg
+  if (isBase64PDFField(field)) {
+    allowedTypes = ['application/pdf']
+    typeErrMsg = '仅支持 PDF 文件'
+  } else if (isBase64ImageOnlyField(field)) {
+    allowedTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/bmp']
+    typeErrMsg = '只支持 JPG、BMP、PNG 格式的图片'
+  } else {
+    allowedTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/bmp', 'application/pdf']
+    typeErrMsg = '只支持 JPG、BMP、PNG、PDF 格式的文件'
+  }
   if (!allowedTypes.includes(fileObj.type)) {
-    ElMessage.error(isBase64ImageOnlyField(field) ? '只支持 JPG、BMP、PNG 格式的图片' : '只支持 JPG、BMP、PNG、PDF 格式的文件')
+    ElMessage.error(typeErrMsg)
     return false
   }
 
-  // 验证文件大小（限制为5MB）
-  const maxSize = 5 * 1024 * 1024 // 5MB
+  // PDF 授权书与后端 huibo decode 一致 ≤500KB；其它 Base64 上传仍为 5MB
+  const maxSize = isBase64PDFField(field) ? 500 * 1024 : 5 * 1024 * 1024
   if (fileObj.size > maxSize) {
-    ElMessage.error('文件大小不能超过 5MB')
+    ElMessage.error(isBase64PDFField(field) ? 'PDF 大小不能超过 500KB' : '文件大小不能超过 5MB')
     return false
   }