diff --git a/crates/redact/src/sanitize.rs b/crates/redact/src/sanitize.rs
index 41ef96cccf..fea0449512 100644
--- a/crates/redact/src/sanitize.rs
+++ b/crates/redact/src/sanitize.rs
@@ -254,7 +254,7 @@ fn content_pass(doc: &mut Document, text: bool, layers: bool, write: bool) -> Re
             let mut cleaned_page = page.dict.clone();
             cleaned_page.set(b"Contents".to_vec(), Object::Array(new_list.clone()));
             let (_, page_content) = page_streams(doc, &cleaned_page, pi)?;
-            let mut res = resources;
+            let mut res = resources.clone();
             if !out.xobjects.is_empty() || !out.replaced.is_empty() {
                 let mut xo = res.get(b"XObject").and_then(|x| doc.resolve(x).as_dict().cloned()).unwrap_or_default();
                 // A full save keeps whatever is still referenced: unlink the originals this page no
@@ -270,6 +270,17 @@ fn content_pass(doc: &mut Document, text: bool, layers: bool, write: bool) -> Re
                 d.set(b"Contents".to_vec(), Object::Array(new_list));
                 d.set(b"Resources".to_vec(), Object::Dict(res));
             })?;
+            // Tags must not describe or point at what the page no longer shows.
+            let (changed_ids, empty_ids) = crate::tags::touched(
+                doc,
+                &resources,
+                pdfcraft_content::Pieces::join(&data).data(),
+                pdfcraft_content::Pieces::join(&page_content).data(),
+            );
+            crate::tags::clean(doc, page.obj, None, &changed_ids, &empty_ids)?;
+        }
+        for (old, new, changed, empty) in out.tag_changes {
+            crate::tags::clean(doc, page.obj, Some((old, new)), &changed, &empty)?;
         }
     }
     // What a page no longer draws must not stay reachable through an inherited or shared
diff --git a/crates/redact/src/tests.rs b/crates/redact/src/tests.rs
index 4d2cc76017..5c0eece859 100644
--- a/crates/redact/src/tests.rs
+++ b/crates/redact/src/tests.rs
@@ -2549,3 +2549,31 @@ fn removing_form_fields_takes_hidden_widgets_and_their_values_out_of_the_file()
     assert_no_secret(&doc, b"LEAK_");
     assert!(annots_of(&doc, &pdfcraft_model::pages(&doc).swap_remove(0).dict).is_empty());
 }
+
+/// Removing hidden text cleans the structure tree as redaction does: the elements describing the
+/// removed text lose their descriptions, and a reference into a rewritten Form points at the copy.
+#[test]
+fn removing_hidden_text_cleans_the_structure_tree() {
+    use crate::sanitize::{Hidden, remove_hidden};
+    let mut doc = one_page(
+        b"/P <</MCID 0>> BDC BT /F1 10 Tf 3 Tr 10 200 Td (SECRET) Tj ET EMC /P <</MCID 1>> BDC BT /F1 10 Tf 0 Tr 10 100 Td (Public) Tj ET EMC /Fm Do",
+        "/XObject << /Fm 7 0 R >>",
+        vec![
+            stream(
+                "/Type /XObject /Subtype /Form /BBox [0 0 300 300] /Resources << /Font << /F1 5 0 R >> >>",
+                b"/P <</MCID 0>> BDC BT /F1 10 Tf 3 Tr 10 150 Td (FORMSECRET) Tj ET EMC",
+            ),
+            b"<< /Type /StructTreeRoot /K 9 0 R >>".to_vec(),
+            b"<< /S /Document /P 8 0 R /K [10 0 R 11 0 R 12 0 R] >>".to_vec(),
+            b"<< /S /P /P 9 0 R /Pg 3 0 R /ActualText (LEAK_PAGE_TAG) /K 0 >>".to_vec(),
+            b"<< /S /P /P 9 0 R /Pg 3 0 R /ActualText (Public) /K 1 >>".to_vec(),
+            b"<< /S /P /P 9 0 R /Pg 3 0 R /Alt (LEAK_FORM_TAG) /K << /Type /MCR /Pg 3 0 R /Stm 7 0 R /MCID 0 >> >>".to_vec(),
+        ],
+    );
+    doc.update_dict(doc.root().unwrap(), |d| d.set(b"StructTreeRoot".to_vec(), Object::Ref(ObjRef::new(8, 0)))).unwrap();
+    doc.update_dict(ObjRef::new(3, 0), |d| d.set(b"StructParents".to_vec(), Object::Int(0))).unwrap();
+    remove_hidden(&mut doc, &[Hidden::HiddenText]).unwrap();
+    assert_no_secret(&doc, b"LEAK_");
+    assert_no_secret(&doc, b"SECRET");
+    assert!(doc.get(ObjRef::new(11, 0)).as_dict().unwrap().contains(b"ActualText"), "untouched content keeps its tags");
+}