Make LinkAnnotation public

Author: BobLd

src/UglyToad.PdfPig.Tests/PublicApiScannerTests.cs

@@ -285,6 +285,7 @@ public void OnlyExposedApiIsPublic()
                 "UglyToad.PdfPig.Util.Diacritics",
                 "UglyToad.PdfPig.Util.WhitespaceSizeStatistics",
                 "UglyToad.PdfPig.Writer.ITokenWriter",
+                "UglyToad.PdfPig.Writer.LinkAnnotation",
                 "UglyToad.PdfPig.Writer.PdfAStandard",
                 "UglyToad.PdfPig.Writer.PdfDocumentBuilder",
                 "UglyToad.PdfPig.Writer.PdfMerger",

src/UglyToad.PdfPig/Writer/LinkAnnotation.cs

@@ -9,7 +9,7 @@ namespace UglyToad.PdfPig.Writer
     /// Represents a link annotation that can be added to a PDF page.
     /// Link annotations provide clickable areas that can trigger actions such as navigating to another page or opening a URL.
     /// </summary>
-    internal sealed class LinkAnnotation
+    public sealed class LinkAnnotation
     {
         /// <summary>
         /// Gets the border style for the link annotation.

src/UglyToad.PdfPig/Writer/PdfPageBuilder.cs

@@ -855,7 +855,7 @@ public PdfPageBuilder AddLink(ExplicitDestination destination, PdfRectangle link
         /// </summary>
         /// <param name="link">The link annotation to add</param>
         /// <returns>This page builder for method chaining</returns>
-        private PdfPageBuilder AddLink(LinkAnnotation link)
+        public PdfPageBuilder AddLink(LinkAnnotation link)
         {
             links.Add((link.ToToken(), link.Action));
             return this;