diff --git a/src/public/stylesheets/share.css b/src/public/stylesheets/share.css
index 4adf7539b..fcca8edb2 100644
--- a/src/public/stylesheets/share.css
+++ b/src/public/stylesheets/share.css
@@ -52,6 +52,11 @@ pre {
     word-wrap: anywhere;
 }
 
+iframe.pdf-view {
+    width: 100%;
+    height: 800px;
+}
+
 #menuButton {
     display: none;
     position: fixed;
diff --git a/src/share/content_renderer.js b/src/share/content_renderer.js
index 51cb7248b..14572b062 100644
--- a/src/share/content_renderer.js
+++ b/src/share/content_renderer.js
@@ -77,7 +77,7 @@ function getContent(note) {
     }
     else if (note.type === 'file') {
         if (note.mime === 'application/pdf') {
-            content = `<iframe height="800" width="800" src="api/notes/${note.noteId}/view"></iframe>`
+            content = `<iframe class="pdf-view" src="api/notes/${note.noteId}/view"></iframe>`
         }
         else {
             content = `<button type="button" onclick="location.href='api/notes/${note.noteId}/download'">Download file</button>`;
@@ -89,7 +89,7 @@ function getContent(note) {
     else {
         content = '<p>This note type cannot be displayed.</p>' + getChildrenList(note);
     }
-    
+
     return content;
 }