diff --git a/README.md b/README.md
index 90d4e415..09988207 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,8 @@
 [PhotonlibOS.github.io](https://photonlibos.github.io)
 
 ## What's New
-* We present a article to illustrate why Photon's stackful coroutine is fast.
-[link](https://photonlibos.github.io/blog/stackful-coroutine-made-fast)
+* We present an article to illustrate the theory of Photon's coroutine.
+[Stackful Coroutine Made Fast](https://photonlibos.github.io/blog/stackful-coroutine-made-fast)
 * Version 0.8 has been released in August 2024
 * Feb 2024，[中文文档](https://photonlibos.github.io/cn/docs/category/introduction)在官网上线了
 * Since 0.7, Photon will use release branches to enhance the reliability of software delivery. Bugfix will be merged into a stable release at first, then to higher release versions, and finally main.
diff --git a/doc/blog/2024-10-14-stackful-coroutine-made-fast.mdx b/doc/blog/2024-10-14-stackful-coroutine-made-fast.mdx
index a71f3628..fe39ca78 100644
--- a/doc/blog/2024-10-14-stackful-coroutine-made-fast.mdx
+++ b/doc/blog/2024-10-14-stackful-coroutine-made-fast.mdx
@@ -3,4 +3,7 @@ slug: stackful-coroutine-made-fast
 title: Stackful Coroutine Made Fast
 ---
 
+<a href="https://github.com/alibaba/PhotonLibOS/blob/main/doc/static/blog-20241014/Stackful_Coroutine_Made_Fast.pdf">
+Download pdf</a>
+
 <iframe src='/blog-20241014/stackful-coroutine-made-fast.html' width="100%" height="30000"></iframe>
\ No newline at end of file