diff --git a/src/pages/authentication/auth-forms/BusCustomFormWizard.js b/src/pages/authentication/auth-forms/BusCustomFormWizard.js
index 458751ac..f823adbc 100644
--- a/src/pages/authentication/auth-forms/BusCustomFormWizard.js
+++ b/src/pages/authentication/auth-forms/BusCustomFormWizard.js
@@ -1559,6 +1559,9 @@ const BusCustomFormWizard = (props) => {
                                                 <Typography display="inline" variant="h6" component="span" sx={{ color: 'primary.primary' }}>
                                                     <FormattedMessage id="pleaseUploadDoc"/>
                                                 </Typography>
+                                                <Typography component="span" variant="subtitle1" sx={{ color: 'primary.primary', display: 'block' }}>
+                                                    <FormattedMessage id="acceptRegisterUploadFileFormats" />
+                                                </Typography>
                                                 {/* <Typography display="inline" variant="h6" component="span" sx={{ fontSize: 12,color: 'primary.primary'}}>如: 香港身份證; 護照; 中國內地身份證等</Typography>           */}
                                                 <Stack mt={1} direction="row" justifyContent="flex-start" alignItems="center" spacing={2}>
                                                     <ThemeProvider theme={PNSPS_LONG_BUTTON_THEME}>
@@ -1584,7 +1587,7 @@ const BusCustomFormWizard = (props) => {
                                                             <FormattedMessage id="uploadFile" />
                                                         </Button>
                                                         <input
-                                                            accept="image/png, .jpg, .bmp, .pdf"
+                                                            accept=".pdf,.jpg,.jpeg,.png,.bmp,application/pdf,image/jpeg,image/png,image/bmp"
                                                             //className={classes.input}
                                                             id="contained-button-file"
                                                             multiple
diff --git a/src/pages/authentication/auth-forms/CustomFormWizard.js b/src/pages/authentication/auth-forms/CustomFormWizard.js
index 931a5224..a47e9a82 100644
--- a/src/pages/authentication/auth-forms/CustomFormWizard.js
+++ b/src/pages/authentication/auth-forms/CustomFormWizard.js
@@ -1888,6 +1888,9 @@ const CustomFormWizard = (props) => {
                                                 <Typography component="span" variant="subtitle1" sx={{ color: 'primary.primary', display: 'block' }}>
                                                     <FormattedMessage id="pleaseUploadIdDocSubTitle" />
                                                 </Typography>
+                                                <Typography component="span" variant="subtitle1" sx={{ color: 'primary.primary', display: 'block' }}>
+                                                    <FormattedMessage id="acceptRegisterUploadFileFormats" />
+                                                </Typography>
                                                 <Stack mt={1} direction="row" justifyContent="flex-start" alignItems="center" spacing={2}>
                                                     <ThemeProvider theme={PNSPS_LONG_BUTTON_THEME}>
                                                         <Button
@@ -1912,7 +1915,7 @@ const CustomFormWizard = (props) => {
                                                             <FormattedMessage id="uploadIdDoc" />
                                                         </Button>
                                                         <input
-                                                            accept="image/png, .jpg, .bmp, .pdf"
+                                                            accept=".pdf,.jpg,.jpeg,.png,.bmp,application/pdf,image/jpeg,image/png,image/bmp"
                                                             //className={classes.input}
                                                             id="contained-button-file"
                                                             multiple
diff --git a/src/translations/en.json b/src/translations/en.json
index 2943bd2d..d9b871d4 100644
--- a/src/translations/en.json
+++ b/src/translations/en.json
@@ -292,6 +292,7 @@
   "uploadFile": "Upload business registration certificate",
   "pleaseUploadIdDoc": "Please upload a digital file of your valid identity document to verify your identity.",
   "pleaseUploadIdDocSubTitle": "Such as: Hong Kong ID card; passport; Mainland China ID card; professional practice certificate, etc.",
+  "acceptRegisterUploadFileFormats": "Accept file formats: PDF, JPG, JPEG, PNG, and BMP. Support maximum 5 files.",
   "uploadIdDoc": "Upload identity document",
   "fileName": "File name",
   "forOrgUser": "For Organisation / Company Users",
diff --git a/src/translations/zh-CN.json b/src/translations/zh-CN.json
index 6079a6f9..2ef5a197 100644
--- a/src/translations/zh-CN.json
+++ b/src/translations/zh-CN.json
@@ -335,6 +335,7 @@
   "uploadFile": "上传商业登记证",
   "pleaseUploadIdDoc": "请上传你的 有效身份证明文件 的数码档案，以验证你的身份。",
   "pleaseUploadIdDocSubTitle": "如: 香港身份证; 护照; 中国内地身份证; 专业执业证书等",
+  "acceptRegisterUploadFileFormats": "接受档案格式：PDF、JPG、JPEG、PNG 及 BMP。最多可上传 5 个档案。",
   "uploadIdDoc": "上传身份证明文件",
   "fileName": "档案名称",
   "forOrgUser": "机构/公司用户",
diff --git a/src/translations/zh-HK.json b/src/translations/zh-HK.json
index 3cb8917c..9840202c 100644
--- a/src/translations/zh-HK.json
+++ b/src/translations/zh-HK.json
@@ -329,6 +329,7 @@
   "pleaseUploadDoc": "請上傳你的 有效商業登記證 的數碼檔案，以驗證你的身份。",
   "pleaseUploadIdDoc": "請上傳你的 有效身份證明文件 的數碼檔案，以驗證你的身份。",
   "pleaseUploadIdDocSubTitle": "如: 香港身份證; 護照; 中國內地身份證; 專業執業証書等",
+  "acceptRegisterUploadFileFormats": "接受檔案格式：PDF、JPG、JPEG、PNG 及 BMP。最多可上載 5 個檔案。",
   "uploadIdDoc": "上傳身份證明文件",
   "uploadFile": "上傳商業登記證",
   "fileName": "檔案名稱",