diff --git a/htdocs/admin/pdf.php b/htdocs/admin/pdf.php
index 8891fb5a4c4..4a42eb2bf23 100644
--- a/htdocs/admin/pdf.php
+++ b/htdocs/admin/pdf.php
@@ -420,7 +420,9 @@ print '</td></tr>';
 
 // Show sales representative
 
-print '<tr class="oddeven"><td>'.$langs->trans("DOC_SHOW_FIRST_SALES_REP").'</td><td>';
+print '<tr class="oddeven"><td>'.$langs->trans("DOC_SHOW_FIRST_SALES_REP");
+print ' <span class="opacitymedium">('.$langs->trans("SalesRepresentativeInfo").')</span>';
+print '</td><td>';
 if ($conf->use_javascript_ajax) {
 	print ajax_constantonoff('DOC_SHOW_FIRST_SALES_REP');
 } else {
diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 55a0b0a34c3..6bd56b6ed49 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -1994,6 +1994,7 @@ MAIN_PDF_MARGIN_RIGHT=Right margin on PDF
 MAIN_PDF_MARGIN_TOP=Top margin on PDF
 MAIN_PDF_MARGIN_BOTTOM=Bottom margin on PDF
 MAIN_DOCUMENTS_LOGO_HEIGHT=Height for logo on PDF
+DOC_SHOW_FIRST_SALES_REP=Show first sales representative
 MAIN_GENERATE_PROPOSALS_WITH_PICTURE=Add picture on proposal line
 MAIN_PDF_PROPAL_USE_ELECTRONIC_SIGNING=Add electronic sign in PDF
 NothingToSetup=There is no specific setup required for this module.
@@ -2151,8 +2152,9 @@ NoExternalModuleWithUpdate=No updates found for external modules
 SwaggerDescriptionFile=Swagger API description file (for use with redoc for example)
 YouEnableDeprecatedWSAPIsUseRESTAPIsInstead=You enabled deprecated WS API. You should use REST API instead.
 RandomlySelectedIfSeveral=Randomly selected if several pictures are available
+SalesRepresentativeInfo=For Proposals, Orders, Invoces.
 DatabasePasswordObfuscated=Database password is obfuscated in conf file
 DatabasePasswordNotObfuscated=Database password is NOT obfuscated in conf file
 APIsAreNotEnabled=APIs modules are not enabled
 YouShouldSetThisToOff=You should set this to 0 or off
-InstallAndUpgradeLockedBy=Install and upgrades are locked by the file <b>%s</b>
\ No newline at end of file
+InstallAndUpgradeLockedBy=Install and upgrades are locked by the file <b>%s</b>