diff --git a/_plugins/copy_markdown.rb b/_plugins/copy_markdown.rb
new file mode 100644
index 00000000..982c522c
--- /dev/null
+++ b/_plugins/copy_markdown.rb
@@ -0,0 +1,14 @@
+Jekyll::Hooks.register :site, :post_write do |site|
+  site.collections.each do |label, collection|
+    next unless label == 'articles'
+    collection.docs.each do |doc|
+      source_path = File.join(site.source, doc.relative_path)
+      next unless File.exist?(source_path)
+
+      dest_path = doc.destination(site.dest).sub(/\.html$/, '.md')
+      dest_dir = File.dirname(dest_path)
+      FileUtils.mkdir_p(dest_dir)
+      FileUtils.cp(source_path, dest_path)
+    end
+  end
+end
diff --git a/llms.txt b/llms.txt
index d6fe83c5..253a61dd 100644
--- a/llms.txt
+++ b/llms.txt
@@ -7,7 +7,7 @@ sitemap: false
 
 ## Docs
 
-{% for article in site.articles %}- [{{article.title}}](https://www.dynamsoft.com{{ article.url | relative_url }}): {{ article.description }}
+{% for article in site.articles %}- [{{article.title}}](https://www.dynamsoft.com{{ article.url | relative_url | replace: '.html', '.md' }}): {{ article.description }}
 {% endfor %}
 
 ## Samples