diff --git a/packages/web/components/templates/article/pdf.js/PdfViewer.tsx b/packages/web/components/templates/article/pdf.js/PdfViewer.tsx
index 887aa54eb..dcc888cab 100644
--- a/packages/web/components/templates/article/pdf.js/PdfViewer.tsx
+++ b/packages/web/components/templates/article/pdf.js/PdfViewer.tsx
@@ -311,6 +311,11 @@ export default function PdfViewer(props: PdfArticleContainerProps) {
         'mouseup',
         detectHighlightedText
       )
+
+      props.containerRef.current.addEventListener(
+        'touchend',
+        detectHighlightedText
+      )
     }
 
     return () => {
@@ -319,6 +324,11 @@ export default function PdfViewer(props: PdfArticleContainerProps) {
           'mouseup',
           detectHighlightedText
         )
+
+        props.containerRef.current.addEventListener(
+          'touchend',
+          detectHighlightedText
+        )
       }
     }
   }, [