Accept out of range characterCode in type 3 font and fix #1349

src/UglyToad.PdfPig.Tests/Integration/GithubIssuesTests.cs

@@ -11,6 +11,18 @@
 
     public class GithubIssuesTests
     {
+        [Fact]
+        public void Issues1349()
+        {
+            var path = IntegrationHelpers.GetDocumentPath("Type3Test.pdf");
+            using (var document = PdfDocument.Open(path, new ParsingOptions() { UseLenientParsing = true }))
+            {
+                var page = document.GetPage(1);
+                Assert.NotNull(page);
+                Assert.NotNull(page.Text);
+            }
+        }
+
         [Fact]
         public void Issues1330()
         {

src/UglyToad.PdfPig/PdfFonts/Simple/Type3Font.cs

@@ -136,7 +136,12 @@ private PdfRectangle GetBoundingBoxInGlyphSpace(int characterCode)
         {
             if (characterCode < firstChar || characterCode > lastChar)
             {
-                throw new InvalidFontFormatException($"The character code was not contained in the widths array: {characterCode}.");
+                // The code is outside the Widths array range. This is legal: a content
+                // stream may show codes (e.g. space, 32) that the font does not define a
+                // glyph for. Such codes have no glyph to paint (no CharProc), so report an
+                // empty bounding box rather than throwing. The advance width still comes
+                // from GetWidth, which falls back to the FontBBox width for these codes.
+                return new PdfRectangle(0, 0, boundingBox.Right, 0);
             }
 
             // The CharProc's d1 operator would declare a precise per-glyph