diff --git a/parity/acrobat-features.toml b/parity/acrobat-features.toml
index e8999e88e8..90d9c8ef67 100644
--- a/parity/acrobat-features.toml
+++ b/parity/acrobat-features.toml
@@ -3329,7 +3329,7 @@ status = "shipped"
 commands = ["edit.attach"]
 tools = ["attachment_add"]
 evidence = ["crates/organize/src/tests.rs::attachments_are_added_listed_and_deleted", "crates/organize/src/tests.rs::attachments_added_in_the_app_survive_combine_and_more_can_be_attached", "crates/automation/tests/automation.rs::attaching_and_deleting_files_through_the_tools"]
-notes = "Edit ▸ Attach a file… (also the Attach a file… button in the Attachments panel and the Edit a PDF list): the file goes into /Names /EmbeddedFiles as a Filespec with a Flate-compressed EmbeddedFile stream (/Size, /ModDate, /Subtype from the extension); a name already taken gets \"
+notes = "Edit ▸ Attach a file… (also the Attach a file… button in the Attachments panel and the Edit a PDF list): the file goes into /Names /EmbeddedFiles as a Filespec with a Flate-compressed EmbeddedFile stream (/Size, /ModDate, /Subtype from the extension); a name already taken gets \" (2)\"…; the panel opens on it. Undoable. Acrobat's Comment ▸ Attach File (a paper-clip comment on the page) is comment.attach-file-comment."
 
 [[feature]]
 id = "organize.attachments-delete"