diff --git a/Userland/Libraries/LibPDF/Document.cpp b/Userland/Libraries/LibPDF/Document.cpp
index bdf0eea509..e0425ab605 100644
--- a/Userland/Libraries/LibPDF/Document.cpp
+++ b/Userland/Libraries/LibPDF/Document.cpp
@@ -419,7 +419,11 @@ PDFErrorOr<void> Document::build_outline()
     if (!m_catalog->contains(CommonNames::Outlines))
         return {};
 
-    auto outline_dict = TRY(m_catalog->get_dict(this, CommonNames::Outlines));
+    auto outlines = TRY(resolve(m_catalog->get_value(CommonNames::Outlines)));
+    if (outlines.has<nullptr_t>())
+        return {};
+
+    auto outline_dict = cast_to<DictObject>(outlines);
     if (!outline_dict->contains(CommonNames::First))
         return {};
     if (!outline_dict->contains(CommonNames::Last))
diff --git a/Userland/Libraries/LibPDF/DocumentParser.cpp b/Userland/Libraries/LibPDF/DocumentParser.cpp
index b711180358..5b59bac0ee 100644
--- a/Userland/Libraries/LibPDF/DocumentParser.cpp
+++ b/Userland/Libraries/LibPDF/DocumentParser.cpp
@@ -65,6 +65,12 @@ PDFErrorOr<Value> DocumentParser::parse_object_with_index(u32 index)
 {
     VERIFY(m_xref_table->has_object(index));
 
+    // PDF spec 1.7, Indirect Objects:
+    // "An indirect reference to an undefined object is not an error; it is simply treated as a reference to the null object."
+    // FIXME: Should this apply to the !has_object() case right above too?
+    if (!m_xref_table->is_object_in_use(index))
+        return nullptr;
+
     if (m_xref_table->is_object_compressed(index))
         // The object can be found in a object stream
         return parse_compressed_object_with_index(index);