Add a deterministic pdf target

src/Directory.Build.props

@@ -2,7 +2,7 @@
 <Project>
   <PropertyGroup>
     <NoWarn>CS1591;CS0649;CA1416;NU1608;NU1109</NoWarn>
-    <Version>5.26.0</Version>
+    <Version>5.27.0</Version>
     <LangVersion>preview</LangVersion>
     <AssemblyVersion>1.0.0</AssemblyVersion>
     <PackageTags>Aspose, Verify</PackageTags>

src/Directory.Packages.props

@@ -10,6 +10,7 @@
     <PackageVersion Include="Aspose.PDF" Version="26.4.0" Pinned="true" />
     <PackageVersion Include="Aspose.Slides.NET" Version="26.7.0" />
     <PackageVersion Include="Aspose.Words" Version="26.7.0" />
+    <PackageVersion Include="DeterministicPdf" Version="1.0.1" />
     <PackageVersion Include="DeterministicIoPackaging" Version="0.30.0" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.4.1" />
     <PackageVersion Include="Microsoft.Bcl.Memory" Version="10.0.10" />

src/Verify.Aspose/GlobalUsings.cs

@@ -4,4 +4,5 @@
 global using System.Xml.Linq;
 global using Aspose.Pdf.Devices;
 global using DeterministicIoPackaging;
+global using DeterministicPdf;
 global using VerifyTestsAspose;

src/Verify.Aspose/Verify.Aspose.csproj

@@ -5,6 +5,7 @@
   <ItemGroup>
     <PackageReference Include="Aspose.Pdf" />
     <PackageReference Include="DeterministicIoPackaging" />
+    <PackageReference Include="DeterministicPdf" />
     <PackageReference Include="Microsoft.Bcl.Memory" />
     <PackageReference Include="Verify" />
     <PackageReference Include="Aspose.Cells" />

src/Verify.Aspose/VerifyAspose_Pdf.cs

@@ -94,7 +94,11 @@ static ConversionResult ConvertPdf(string? name, Document document, IReadOnlyDic
         }
 
         var (fonts, embeddedFonts) = GetPdfFonts(document);
-        return new(
+
+        // Built before the targets, preserving the original evaluation order: GetDocumentText below
+        // re-saves the document to extract its text, and the page rendering in GetPdfStreams has
+        // always run after that.
+        var snapshotInfo =
             new
             {
                 Pages = document.Pages.Count,
@@ -124,8 +128,33 @@ static ConversionResult ConvertPdf(string? name, Document document, IReadOnlyDic
                 Fonts = fonts,
                 EmbeddedFonts = embeddedFonts,
                 Text = GetDocumentText(document)
-            },
-            GetPdfStreams(name, document, settings).ToList());
+            };
+
+        List<Target> targets = [];
+        // Building the deterministic pdf is expensive, so skip it when the pdf target is excluded.
+        if (!settings.IsTargetExcluded("pdf"))
+        {
+            targets.Add(BuildPdfTarget(document));
+        }
+
+        targets.AddRange(GetPdfStreams(name, document, settings));
+
+        return new(snapshotInfo, targets);
+    }
+
+    // The pdf snapshot is always the full document, regardless of PagesToInclude: PagesToInclude
+    // only trims the rendered png pages in GetPdfStreams. Mirrors BuildXlsxTarget/BuildDocxTarget,
+    // which do the same for the OOXML formats via DeterministicPackage.
+    static Target BuildPdfTarget(Document document)
+    {
+        using var source = new MemoryStream();
+        document.Save(source);
+        var resultStream = PdfNormalizer.Normalize(source);
+
+        return new("pdf", resultStream, performConversion: false)
+        {
+            BypassComparersForSubsequentOnDifference = true
+        };
     }
 
     static string GetDocumentText(Document document)