diff --git a/src/main/resources/templates/convert/pdf-to-img.html b/src/main/resources/templates/convert/pdf-to-img.html
index 1d6db966a..5d5a6ae7e 100644
--- a/src/main/resources/templates/convert/pdf-to-img.html
+++ b/src/main/resources/templates/convert/pdf-to-img.html
@@ -24,6 +24,9 @@
                                     <option value="png">PNG</option>
                                     <option value="jpg">JPG</option>
                                     <option value="gif">GIF</option>
+                                    <option value="tiff">TIFF</option>
+                                    <option value="bmp">BMP</option>
+                                    <option value="wbmp">WBMP</option>
                                 </select>
                             </div>
                             <div class="mb-3">
@@ -56,4 +59,4 @@
         <div th:insert="~{fragments/footer.html :: footer}"></div>
     </div>
 </body>
-</html>
\ No newline at end of file
+</html>