Add callout to original highlight page

Author: cderv

docs/prerelease/1.3/pdf.qmd

@@ -3,6 +3,17 @@ title: PDF Format Improvements
 search: true
 ---
 
+::: callout-note
+## Content Moved
+
+The SVG and Remote Images content from this page has been migrated to the main documentation:
+
+- [SVG Images](/docs/output-formats/pdf-basics.qmd#svg-images)
+- [Remote Images](/docs/output-formats/pdf-basics.qmd#svg-images)
+
+This page is retained for historical reference.
+:::
+
 {{< include /docs/_require-1.3.qmd >}}
 
 ## SVG Images