diff --git a/theme/classic.html b/theme/classic.html
index fe2ff16..a4b19bb 100644
--- a/theme/classic.html
+++ b/theme/classic.html
@@ -665,6 +665,21 @@
         disableAutoFetch: true,
         rangeChunkSize: 65535
     });
+    /*loadingTask.onProgress = (e) => {
+        //console.log(e);
+        var p = document.getElementById('p');
+        if (p==null) {
+            p = document.createElement('div');
+            p.id = 'p';
+            p.setAttribute('onclick', "this.style.display = 'none';");
+            p.style = 'left: 10px; top: 30%; position: fixed;';
+            document.body.appendChild(p);
+        }
+        p.innerHTML = 'Loaded: ' + ((e.loaded/e.total)*100).toFixed(2) + '%<br>(' + size_format(e.loaded) + ' / ' + size_format(e.total) + ')';
+        p.style.display = '';
+        if (e.loaded==e.total) p.style.display = 'none';
+        
+    }*/
     loadingTask.promise.then(function(pdf) {
         var pagenum =  pdf.numPages;
         var pdfContainer = document.getElementById('pdf-d');
@@ -678,7 +693,6 @@
         pdfContainer.appendChild(pdfnextpagebutton);
         var pdfWaitNextPage = setInterval(function(){
             //console.log(document.documentElement.scrollTop + ", " + document.body.scrollHeight);
-            console.log("next page: " + pagepos + " / " + pagenum);
             if (pdfnextpagebutton.style.display=='none') {
                 for (var i=pagepos;i<=(pagepos+4<pagenum?pagepos+4:pagenum);i++) {
                     var canvasNew = document.createElement('canvas');
@@ -688,6 +702,7 @@
                 }
                 pagepos = i;
                 if (pagepos<pagenum) {
+                    console.log("next page: " + pagepos + " / " + pagenum);
                     pdfnextpagebutton.innerText = 'Load page ' + pagepos + '-' + (pagepos+4<pagenum?pagepos+4:pagenum) + ' (' + pagenum + ')';
                     pdfnextpagebutton.style.display ='';
                     pdfContainer.appendChild(pdfnextpagebutton);
@@ -713,6 +728,24 @@
             page.render(renderContext);
         });
     }
+    function size_format(num) {
+        if (num>1024) {
+            num=num/1024;
+        } else {
+            return num.toFixed(2) + ' B';
+        }
+        if (num>1024) {
+            num=num/1024;
+        } else {
+            return num.toFixed(2) + ' KB';
+        }
+        if (num>1024) {
+            num=num/1024;
+        } else {
+            return num.toFixed(2) + ' MB';
+        }
+        return num.toFixed(2) + ' GB';
+    }
 <!--IspdfFileEnd-->
 <!--IsFileEnd-->
 <!--IsFolderStart-->