diff --git a/src/assets/pdf.jpg b/src/assets/pdf.jpg
deleted file mode 100644
index e6506afc..00000000
Binary files a/src/assets/pdf.jpg and /dev/null differ
diff --git a/src/assets/pdf.png b/src/assets/pdf.png
new file mode 100644
index 00000000..f3ba67e9
Binary files /dev/null and b/src/assets/pdf.png differ
diff --git a/src/views/none-dicom-show/index.vue b/src/views/none-dicom-show/index.vue
index 78c6bb2d..3f7354ac 100644
--- a/src/views/none-dicom-show/index.vue
+++ b/src/views/none-dicom-show/index.vue
@@ -138,7 +138,7 @@
 <script>
 import { getNoneDicomStudyList, setNodicomStudyState } from '@/api/trials'
 import store from '@/store'
-import pdf from '@/assets/pdf.jpg'
+import pdf from '@/assets/pdf.png'
 import zip from '@/assets/zip.jpg'
 import { changeURLStatic } from '@/utils/history.js'
 import Preview from './components/preview'
diff --git a/src/views/trials/trials-panel/reading/visit-review/components/StudyList.vue b/src/views/trials/trials-panel/reading/visit-review/components/StudyList.vue
index df44590d..331b50bc 100644
--- a/src/views/trials/trials-panel/reading/visit-review/components/StudyList.vue
+++ b/src/views/trials/trials-panel/reading/visit-review/components/StudyList.vue
@@ -73,7 +73,7 @@
   </div>
 </template>
 <script>
-import pdf from '@/assets/pdf.jpg'
+import pdf from '@/assets/pdf.png'
 export default {
   name: 'StudyList',
   props: {