Index: openacs-4/packages/xowiki/www/ckeditor-images/upload_image.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/www/ckeditor-images/upload_image.tcl,v
diff -u -N -r1.10.2.3 -r1.10.2.4
--- openacs-4/packages/xowiki/www/ckeditor-images/upload_image.tcl	1 Jul 2020 19:31:58 -0000	1.10.2.3
+++ openacs-4/packages/xowiki/www/ckeditor-images/upload_image.tcl	13 Jul 2020 12:02:34 -0000	1.10.2.4
@@ -27,7 +27,7 @@
       ns_log notice "upload_image: uploaded filename <$file_name>"
       set upload_tmpfile [template::util::file::get_property tmp_filename $upload_file]
       set mime_type [::xowiki::guesstype $file_name]
-      set tmp_size [file size $upload_tmpfile]
+      set tmp_size [ad_file size $upload_tmpfile]
 
       if {$size ne ""} {exec convert -resize $size $upload_tmpfile $upload_tmpfile}
       if {![regexp (image/*|audio/mpeg|application/x-shockwave-flash|application/vnd.adobe.flash-movie|video/mp4) $mime_type]} {