diff --git a/lib/mvcfronk/mfUpload/mfUpload.php b/lib/mvcfronk/mfUpload/mfUpload.php
index 13db352b7..4d747d518 100644
--- a/lib/mvcfronk/mfUpload/mfUpload.php
+++ b/lib/mvcfronk/mfUpload/mfUpload.php
@@ -121,12 +121,16 @@ class mfUpload {
       return false;
     }
     
+    /*
+    // false positives if PDF consists of images only
     $pdftext = $this->upload->pdftotext();
+    
     //$this->log->debug("text: ".$pdftext);
     if(strlen($pdftext) < 100) {
       $this->log->warn("pdftotext less than 100 bytes (".$this->filename.")");
       return false;
     }
+    */
     
     //$this->log->debug("upload text: $pdftext");
     return true;