diff --git a/core/ormdocument.class.inc.php b/core/ormdocument.class.inc.php
index 11c010944f..7044d5b6f4 100644
--- a/core/ormdocument.class.inc.php
+++ b/core/ormdocument.class.inc.php
@@ -281,6 +281,32 @@ class ormDocument
 					$oDocument->IncreaseDownloadsCount();
 					$oObj->Set($sAttCode, $oDocument);
 					$oObj->DBUpdate();
+
+					// Activate any existing trigger
+					if ($sClass === 'Attachment')
+					{
+						$oHostObj = MetaModel::GetObject($oObj->Get('item_class'), $oObj->Get('item_id'), false /* false to avoid exception during trigger */, true);
+						$sTriggerClass = 'TriggerOnAttachmentDownload';
+						$aTriggerContextArgs = array(
+							'this->object()' => $oHostObj,
+							'attachment->object()' => $oObj,
+						);
+						$aTriggerParams = array('class_list' => MetaModel::EnumParentClasses($oObj->Get('item_class'), ENUM_PARENT_CLASSES_ALL));
+					}
+					else
+					{
+						$sTriggerClass = 'TriggerOnDocumentAttributeDownload';
+						$aTriggerContextArgs = array(
+							'this->object()' => $oObj,
+						);
+						$aTriggerParams = array('class_list' => MetaModel::EnumParentClasses($sClass, ENUM_PARENT_CLASSES_ALL));
+					}
+					$oTriggerSet = new DBObjectSet(DBObjectSearch::FromOQL("SELECT $sTriggerClass AS t WHERE t.target_class IN (:class_list)"), array(), $aTriggerParams);
+					while ($oTrigger = $oTriggerSet->Fetch())
+					{
+						/** @var \Trigger $oTrigger */
+						$oTrigger->DoActivate($aTriggerContextArgs);
+					}
 				}
 			}
 		}
diff --git a/core/trigger.class.inc.php b/core/trigger.class.inc.php
index 0860b89cc9..469f0d2e47 100644
--- a/core/trigger.class.inc.php
+++ b/core/trigger.class.inc.php
@@ -666,6 +666,37 @@ class TriggerOnObjectMention extends TriggerOnObject
 	}
 }
 
+/**
+ * Class TriggerOnDocumentAttributeDownload
+ *
+ * @since 3.1.0
+ */
+class TriggerOnDocumentAttributeDownload extends TriggerOnObject
+{
+	/**
+	 * @inheritDoc
+	 * @throws \CoreException
+	 * @throws \Exception
+	 */
+	public static function Init()
+	{
+		$aParams = array
+		(
+			"category" => "grant_by_profile,core/cmdb,application",
+			"key_type" => "autoincrement",
+			"name_attcode" => "description",
+			"state_attcode" => "",
+			"reconc_keys" => array('description'),
+			"db_table" => "priv_trigger_ondocattdownload",
+			"db_key_field" => "id",
+			"db_finalclass_field" => "",
+			"display_template" => "",
+		);
+		MetaModel::Init_Params($aParams);
+		MetaModel::Init_InheritAttributes();
+	}
+}
+
 /**
  * Class lnkTriggerAction
  */
diff --git a/datamodels/2.x/itop-attachments/dictionaries/en.dict.itop-attachments.php b/datamodels/2.x/itop-attachments/dictionaries/en.dict.itop-attachments.php
index 05949676c2..03424a16fd 100644
--- a/datamodels/2.x/itop-attachments/dictionaries/en.dict.itop-attachments.php
+++ b/datamodels/2.x/itop-attachments/dictionaries/en.dict.itop-attachments.php
@@ -83,3 +83,12 @@ Dict::Add('EN US', 'English', 'English', array(
 	'Class:Attachment/Attribute:contact_id' => 'Contact id',
 	'Class:Attachment/Attribute:contact_id+' => '',
 ));
+
+//
+// Class: TriggerOnAttachmentDownload
+//
+
+Dict::Add('EN US', 'English', 'English', array(
+	'Class:TriggerOnAttachmentDownload' => 'Trigger (on object\'s attachment download)',
+	'Class:TriggerOnAttachmentDownload+' => 'Trigger on object\'s attachment download of [a child class of] the given class',
+));
diff --git a/datamodels/2.x/itop-attachments/dictionaries/fr.dict.itop-attachments.php b/datamodels/2.x/itop-attachments/dictionaries/fr.dict.itop-attachments.php
index dde721987b..6fb604b413 100644
--- a/datamodels/2.x/itop-attachments/dictionaries/fr.dict.itop-attachments.php
+++ b/datamodels/2.x/itop-attachments/dictionaries/fr.dict.itop-attachments.php
@@ -82,3 +82,12 @@ Dict::Add('FR FR', 'French', 'Français', array(
 	'Class:Attachment/Attribute:contact_id' => 'Contact',
 	'Class:Attachment/Attribute:contact_id+' => '',
 ));
+
+//
+// Class: TriggerOnAttachmentDownload
+//
+
+Dict::Add('FR FR', 'French', 'Français', array(
+	'Class:TriggerOnAttachmentDownload' => 'Déclencheur sur le téléchargement d\'une pièce jointe d\'un objet',
+	'Class:TriggerOnAttachmentDownload+' => '',
+));
diff --git a/datamodels/2.x/itop-attachments/main.itop-attachments.php b/datamodels/2.x/itop-attachments/main.itop-attachments.php
index cfabeeac6f..15e699cd79 100644
--- a/datamodels/2.x/itop-attachments/main.itop-attachments.php
+++ b/datamodels/2.x/itop-attachments/main.itop-attachments.php
@@ -748,6 +748,37 @@ class CMDBChangeOpAttachmentRemoved extends CMDBChangeOp
 	}
 }
 
+/**
+ * Class TriggerOnAttachmentDownload
+ *
+ * @since 3.1.0
+ */
+class TriggerOnAttachmentDownload extends TriggerOnDocumentAttributeDownload
+{
+	/**
+	 * @inheritDoc
+	 * @throws \CoreException
+	 * @throws \Exception
+	 */
+	public static function Init()
+	{
+		$aParams = array
+		(
+			"category" => "grant_by_profile,core/cmdb,application",
+			"key_type" => "autoincrement",
+			"name_attcode" => "description",
+			"state_attcode" => "",
+			"reconc_keys" => array('description'),
+			"db_table" => "priv_trigger_onattdownload",
+			"db_key_field" => "id",
+			"db_finalclass_field" => "",
+			"display_template" => "",
+		);
+		MetaModel::Init_Params($aParams);
+		MetaModel::Init_InheritAttributes();
+	}
+}
+
 
 class AttachmentsHelper
 {
diff --git a/dictionaries/en.dictionary.itop.core.php b/dictionaries/en.dictionary.itop.core.php
index 646ac65d10..b0d3da7695 100644
--- a/dictionaries/en.dictionary.itop.core.php
+++ b/dictionaries/en.dictionary.itop.core.php
@@ -665,6 +665,17 @@ Dict::Add('EN US', 'English', 'English', array(
 	'Class:TriggerOnObjectMention/Attribute:mentioned_filter+' => 'Limit the list of mentioned objects which will activate the trigger. If empty, any mentioned object (of any class) will activate it.',
 ));
 
+//
+// Class: TriggerOnAttributeDocumentDownload
+//
+
+Dict::Add('EN US', 'English', 'English', array(
+	'Class:TriggerOnAttributeDocumentDownload' => 'Trigger (on object\'s document download)',
+	'Class:TriggerOnAttributeDocumentDownload+' => 'Trigger on object\'s document field download of [a child class of] the given class',
+	'Class:TriggerOnAttributeDocumentDownload/Attribute:target_attcodes' => 'Target fields',
+	'Class:TriggerOnAttributeDocumentDownload/Attribute:target_attcodes+' => '',
+));
+
 //
 // Class: TriggerOnThresholdReached
 //
diff --git a/dictionaries/fr.dictionary.itop.core.php b/dictionaries/fr.dictionary.itop.core.php
index d3e008c0a7..bcc143b205 100644
--- a/dictionaries/fr.dictionary.itop.core.php
+++ b/dictionaries/fr.dictionary.itop.core.php
@@ -662,6 +662,17 @@ Dict::Add('FR FR', 'French', 'Français', array(
 	'Class:TriggerOnObjectMention/Attribute:mentioned_filter+' => 'Permet de limiter la liste des objets mentionnés pour lesquels le déclencheur s\'activera. Si vide, n\'importe quel objet mentionné (de n\'importe quelle classe) l\'activera.',
 ));
 
+//
+// Class: TriggerOnAttributeDocumentDownload
+//
+
+Dict::Add('FR FR', 'French', 'Français', array(
+	'Class:TriggerOnAttributeDocumentDownload' => 'Déclencheur sur le téléchargement d\'un document d\'un objet',
+	'Class:TriggerOnAttributeDocumentDownload+' => '',
+	'Class:TriggerOnAttributeDocumentDownload/Attribute:target_attcodes' => 'Attributs cible',
+	'Class:TriggerOnAttributeDocumentDownload/Attribute:target_attcodes+' => '',
+));
+
 //
 // Class: TriggerOnThresholdReached
 //