diff --git a/src/UglyToad.PdfPig.Tests/Integration/Documents/ErcotFacts.pdf b/src/UglyToad.PdfPig.Tests/Integration/Documents/ErcotFacts.pdf
new file mode 100644
index 00000000..bdeb0c7d
Binary files /dev/null and b/src/UglyToad.PdfPig.Tests/Integration/Documents/ErcotFacts.pdf differ
diff --git a/src/UglyToad.PdfPig.Tests/Integration/GithubIssuesTests.cs b/src/UglyToad.PdfPig.Tests/Integration/GithubIssuesTests.cs
new file mode 100644
index 00000000..9d4a5bc4
--- /dev/null
+++ b/src/UglyToad.PdfPig.Tests/Integration/GithubIssuesTests.cs
@@ -0,0 +1,26 @@
+namespace UglyToad.PdfPig.Tests.Integration
+{
+    public class GithubIssuesTests
+    {
+        [Fact]
+        public void Issue874()
+        {
+            var doc = IntegrationHelpers.GetDocumentPath("ErcotFacts.pdf");
+
+            using (var document = PdfDocument.Open(doc, new ParsingOptions() { UseLenientParsing = true, SkipMissingFonts = true }))
+            {
+                var page1 = document.GetPage(1);
+                Assert.Equal(1788, page1.Letters.Count);
+
+                var page2 = document.GetPage(2);
+                Assert.Equal(2430, page2.Letters.Count);
+            }
+
+            using (var document = PdfDocument.Open(doc, new ParsingOptions() { UseLenientParsing = true, SkipMissingFonts = false }))
+            {
+                var ex = Assert.Throws<ArgumentNullException>(() => document.GetPage(1));
+                Assert.StartsWith("Value cannot be null.", ex.Message);
+            }
+        }
+    }
+}
diff --git a/src/UglyToad.PdfPig.Tests/Integration/IntegrationDocumentTests.cs b/src/UglyToad.PdfPig.Tests/Integration/IntegrationDocumentTests.cs
index 8b628fc6..7ffa391b 100644
--- a/src/UglyToad.PdfPig.Tests/Integration/IntegrationDocumentTests.cs
+++ b/src/UglyToad.PdfPig.Tests/Integration/IntegrationDocumentTests.cs
@@ -6,7 +6,8 @@
         private static readonly HashSet<string> _documentsToIgnore =
         [
             "issue_671.pdf",
-            "GHOSTSCRIPT-698363-0.pdf"
+            "GHOSTSCRIPT-698363-0.pdf",
+            "ErcotFacts.pdf"
         ];
 
         [Theory]
diff --git a/src/UglyToad.PdfPig/Graphics/BaseStreamProcessor.cs b/src/UglyToad.PdfPig/Graphics/BaseStreamProcessor.cs
index 7159008d..a3467f68 100644
--- a/src/UglyToad.PdfPig/Graphics/BaseStreamProcessor.cs
+++ b/src/UglyToad.PdfPig/Graphics/BaseStreamProcessor.cs
@@ -661,6 +661,11 @@
 
             var state = ResourceStore.GetExtendedGraphicsStateDictionary(stateName);
 
+            if (state is null)
+            {
+                return;
+            }
+
             if (state.TryGet(NameToken.Lw, PdfScanner, out NumericToken? lwToken))
             {
                 currentGraphicsState.LineWidth = lwToken.Data;
diff --git a/src/UglyToad.PdfPig/Parser/Parts/DirectObjectFinder.cs b/src/UglyToad.PdfPig/Parser/Parts/DirectObjectFinder.cs
index b88b08c2..0a84a81b 100644
--- a/src/UglyToad.PdfPig/Parser/Parts/DirectObjectFinder.cs
+++ b/src/UglyToad.PdfPig/Parser/Parts/DirectObjectFinder.cs
@@ -32,6 +32,11 @@
             {
                 var temp = scanner.Get(reference.Data);
 
+                if (temp is null)
+                {
+                    return false;
+                }
+
                 if (temp.Data is T tTemp)
                 {
                     tokenResult = tTemp;