diff --git a/src/UglyToad.PdfPig.Fonts/TrueType/Tables/GlyphDataTable.cs b/src/UglyToad.PdfPig.Fonts/TrueType/Tables/GlyphDataTable.cs
index 377034d0b..77bb05423 100644
--- a/src/UglyToad.PdfPig.Fonts/TrueType/Tables/GlyphDataTable.cs
+++ b/src/UglyToad.PdfPig.Fonts/TrueType/Tables/GlyphDataTable.cs
@@ -121,14 +121,23 @@ private IReadOnlyList<IGlyphDescription> ReadGlyphs()
 
             for (var i = 0; i < glyphCount; i++)
             {
-                if (offsets[i + 1] <= offsets[i])
+                var offset = offsets[i];
+
+                if (offsets[i + 1] <= offset)
                 {
                     // empty glyph
                     result[i] = emptyGlyph;
                     continue;
                 }
 
-                data.Seek(offsets[i]);
+                // Invalid table, just sub in the empty glyph
+                if (offset >= data.Length)
+                {
+                    result[i] = emptyGlyph;
+                    continue;
+                }
+
+                data.Seek(offset);
 
                 var contourCount = data.ReadSignedShort();
 
diff --git a/src/UglyToad.PdfPig.Tests/Fonts/TrueType/Parser/TrueTypeFontParserTests.cs b/src/UglyToad.PdfPig.Tests/Fonts/TrueType/Parser/TrueTypeFontParserTests.cs
index c2f341688..a06e6e157 100644
--- a/src/UglyToad.PdfPig.Tests/Fonts/TrueType/Parser/TrueTypeFontParserTests.cs
+++ b/src/UglyToad.PdfPig.Tests/Fonts/TrueType/Parser/TrueTypeFontParserTests.cs
@@ -229,5 +229,19 @@ public void ParseIssue258CorruptNameTable()
             Assert.NotNull(font.TableRegister.NameTable);
             Assert.NotEmpty(font.TableRegister.NameTable.NameRecords);
         }
+
+        [Fact]
+        public void Parse12623CorruptFileAndGetGlyphs()
+        {
+            var bytes = TrueTypeTestHelper.GetFileBytes("corrupt-12623");
+
+            var input = new TrueTypeDataBytes(new MemoryInputBytes(bytes));
+
+            var font = TrueTypeFontParser.Parse(input);
+
+            Assert.NotNull(font);
+
+            font.TryGetPath(1, out _);
+        }
     }
 }
diff --git a/src/UglyToad.PdfPig.Tests/Fonts/TrueType/corrupt-12623.ttf b/src/UglyToad.PdfPig.Tests/Fonts/TrueType/corrupt-12623.ttf
new file mode 100644
index 000000000..6e56486e1
Binary files /dev/null and b/src/UglyToad.PdfPig.Tests/Fonts/TrueType/corrupt-12623.ttf differ
diff --git a/src/UglyToad.PdfPig.Tests/UglyToad.PdfPig.Tests.csproj b/src/UglyToad.PdfPig.Tests/UglyToad.PdfPig.Tests.csproj
index 48b5e10f0..a4f321759 100644
--- a/src/UglyToad.PdfPig.Tests/UglyToad.PdfPig.Tests.csproj
+++ b/src/UglyToad.PdfPig.Tests/UglyToad.PdfPig.Tests.csproj
@@ -39,11 +39,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <EmbeddedResource Remove="Fonts\TrueType\Andada-Regular.ttf" />
-        <EmbeddedResource Remove="Fonts\TrueType\google-simple-doc.ttf" />
-        <EmbeddedResource Remove="Fonts\TrueType\issue-258-corrupt-name-table.ttf" />
-        <EmbeddedResource Remove="Fonts\TrueType\PMingLiU.ttf" />
-        <EmbeddedResource Remove="Fonts\TrueType\Roboto-Regular.ttf" />
+        <EmbeddedResource Remove="Fonts\TrueType\*.ttf" />
         <EmbeddedResource Remove="Fonts\Type1\AdobeUtopia.pfa" />
         <EmbeddedResource Remove="Fonts\Type1\CMBX10.pfa" />
         <EmbeddedResource Remove="Fonts\Type1\CMBX12.pfa" />
@@ -61,24 +57,12 @@
         <Content Include="Fonts\CompactFontFormat\MinionPro.bin">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </Content>
-        <Content Include="Fonts\TrueType\Andada-Regular.ttf">
-            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-        </Content>
-        <Content Include="Fonts\TrueType\google-simple-doc.ttf">
-            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-        </Content>
-        <Content Include="Fonts\TrueType\issue-258-corrupt-name-table.ttf">
-            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-        </Content>
-        <Content Include="Fonts\TrueType\PMingLiU.ttf">
+        <Content Include="Fonts\TrueType\*.ttf">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </Content>
         <Content Include="Fonts\TrueType\Roboto-Regular.GlyphData.txt">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </Content>
-        <Content Include="Fonts\TrueType\Roboto-Regular.ttf">
-            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-        </Content>
         <Content Include="Fonts\Type1\AdobeUtopia.pfa" />
         <Content Include="Fonts\Type1\CMBX10.pfa" />
         <Content Include="Fonts\Type1\CMBX12.pfa" />