diff --git a/htdocs/core/lib/files.lib.php b/htdocs/core/lib/files.lib.php
index 238728068c9..83259aa41d2 100644
--- a/htdocs/core/lib/files.lib.php
+++ b/htdocs/core/lib/files.lib.php
@@ -1537,7 +1537,7 @@ function dol_add_file_process($upload_dir, $allowoverwrite=0, $donotupdatesessio
     					    $ecmfile=new EcmFiles($db);
     					    $ecmfile->filepath = $rel_dir;
     					    $ecmfile->filename = $filename;
-    					    $ecmfile->label = md5_file(dol_osencode($destfull));
+    					    $ecmfile->label = md5_file(dol_osencode($destfull));	// MD5 of file content
     					    $ecmfile->fullpath_orig = $TFile['name'][$i];
     					    $ecmfile->gen_or_uploaded = 'uploaded';
     					    $ecmfile->description = '';    // indexed content
diff --git a/htdocs/ecm/class/ecmfiles.class.php b/htdocs/ecm/class/ecmfiles.class.php
index f1090757dad..abe5c403462 100644
--- a/htdocs/ecm/class/ecmfiles.class.php
+++ b/htdocs/ecm/class/ecmfiles.class.php
@@ -46,7 +46,7 @@ class EcmFiles //extends CommonObject
 
 	/**
 	 */
-	public $label;
+	public $label;					// hash of file md5_file(dol_osencode($destfull)), so MD5 of file content
 	public $entity;
 	public $filename;
 	public $filepath;
diff --git a/htdocs/ecm/docfile.php b/htdocs/ecm/docfile.php
index 29f1b21a321..045c3ebda8b 100644
--- a/htdocs/ecm/docfile.php
+++ b/htdocs/ecm/docfile.php
@@ -249,11 +249,23 @@ print dol_print_size($totalsize);
 print '</td></tr>';
 */
 
+$relativetodocument = 'ecm/'.$relativepath;		// $relativepath is relative to ECM dir, we need relative to document
 $filepath=$relativepath.$file->label;
+$filepathtodocument=$relativetodocument.$file->label;
 
 print '<tr><td>'.$langs->trans("HashSaved").'</td><td>';
 $ecmfile = new EcmFiles($db);
-print $filepath;
+//$filenametosearch=basename($filepath);
+//$filedirtosearch=basedir($filepath);
+$ecmfile->fetch(0, '', $filepathtodocument);
+if (! empty($ecmfile->label))
+{
+	print $ecmfile->label;
+}
+else
+{
+	print img_warning().' '.$langs->trans("FileNotYetIndexedInDatabase");
+}
 print '</td></tr>';
 
 // Define $urlwithroot
@@ -261,6 +273,19 @@ $urlwithouturlroot=preg_replace('/'.preg_quote(DOL_URL_ROOT,'/').'$/i','',trim($
 $urlwithroot=$urlwithouturlroot.DOL_URL_ROOT;		// This is to use external domain name found into config file
 //$urlwithroot=DOL_MAIN_URL_ROOT;					// This is to use same domain name than current
 
+print '<tr><td>'.$langs->trans("DirectDownloadInternalLink").'</td><td>';
+$modulepart='ecm';
+$forcedownload=1;
+$rellink='/document.php?modulepart='.$modulepart;
+if ($forcedownload) $rellink.='&attachment=1';
+if (! empty($object->entity)) $rellink.='&entity='.$object->entity;
+$rellink.='&file='.urlencode($filepath);
+$fulllink=$urlwithroot.$rellink;
+print img_picto('','object_globe.png').' ';
+print '<input type="text" class="quatrevingtpercent" id="downloadinternallink" name="downloadinternellink" value="'.dol_escape_htmltag($fulllink).'">';
+print ' <a href="'.$fulllink.'">'.$langs->trans("Download").'</a>';
+print '</td></tr>';
+
 print '<tr><td>'.$langs->trans("DirectDownloadLink").'</td><td>';
 $modulepart='ecm';
 $forcedownload=1;
@@ -269,12 +294,15 @@ if ($forcedownload) $rellink.='&attachment=1';
 if (! empty($object->entity)) $rellink.='&entity='.$object->entity;
 $rellink.='&file='.urlencode($filepath);
 $fulllink=$urlwithroot.$rellink;
-print img_picto('','object_globe.png').' ';
-print '<input type="text" class="quatrevingtpercent" id="downloadlink" name="downloadlink" value="'.dol_escape_htmltag($fulllink).'">';
-print ' <a href="'.$fulllink.'">'.$langs->trans("Download").'</a>';
+// TODO
+//print img_picto('','object_globe.png').' ';
+//print '<input type="text" class="quatrevingtpercent" id="downloadlink" name="downloadexternallink" value="'.dol_escape_htmltag($fulllink).'">';
+//print ' <a href="'.$fulllink.'">'.$langs->trans("Download").'</a>';
 print '</td></tr>';
+
 print '</table>';
 
+print ajax_autoselect('downloadinternallink');
 print ajax_autoselect('downloadlink');
 
 dol_fiche_end();
diff --git a/htdocs/langs/en_US/ecm.lang b/htdocs/langs/en_US/ecm.lang
index a238a8cd384..f7c0f0ab737 100644
--- a/htdocs/langs/en_US/ecm.lang
+++ b/htdocs/langs/en_US/ecm.lang
@@ -42,4 +42,6 @@ CannotRemoveDirectoryContainsFiles=Removed not possible because it contains some
 ECMFileManager=File manager
 ECMSelectASection=Select a directory on left tree...
 DirNotSynchronizedSyncFirst=This directory seems to be created or modified outside ECM module. You must click on "Resync" button first to synchronize disk and database to get content of this directory.
-ReSyncListOfDir=Resync list of directories
\ No newline at end of file
+ReSyncListOfDir=Resync list of directories
+HashSaved=Hash of file
+FileNotYetIndexedInDatabase=File not yet indexed into database (try to re-upload it)
\ No newline at end of file
diff --git a/htdocs/langs/en_US/main.lang b/htdocs/langs/en_US/main.lang
index 1b92d87e9ba..dfe38b7fe65 100644
--- a/htdocs/langs/en_US/main.lang
+++ b/htdocs/langs/en_US/main.lang
@@ -792,7 +792,8 @@ GroupBy=Group by...
 ViewFlatList=View flat list
 RemoveString=Remove string '%s'
 SomeTranslationAreUncomplete=Some languages may be partially translated or may contains errors. If you detect some, you can fix language files registering to <a href="https://transifex.com/projects/p/dolibarr/" target="_blank">https://transifex.com/projects/p/dolibarr/</a>. 
-DirectDownloadLink=Direct download link
+DirectDownloadLink=Direct download link (public/external)
+DirectDownloadInternalLink=Direct download link (need to be logged and permissions)
 Download=Download
 ActualizeCurrency=Update currency rate
 Fiscalyear=Fiscal year