--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test_4141.py	Mon Sep 15 11:44:09 2025 +0200
@@ -0,0 +1,19 @@
+import pymupdf
+
+import os.path
+
+
+def test_4141():
+    """survive missing /Resources object in a number of cases."""
+    path = os.path.abspath(f"{__file__}/../../tests/resources/test_4141.pdf")
+    doc = pymupdf.open(path)
+    page = doc[0]
+    # make sure the right test file
+    assert doc.xref_get_key(page.xref, "Resources") == ("null", "null")
+    page.insert_htmlbox((100, 100, 200, 200), "Hallo")  # will fail without the fix
+    doc.close()
+    doc = pymupdf.open(doc.name)
+    page = doc[0]
+    tw = pymupdf.TextWriter(page.rect)
+    tw.append((100, 100), "Hallo")
+    tw.write_text(page)  # will fail without the fix