diff --git a/doc/fluid/advanced_guide/addon_development/contribute_code/submit_pr_guide.md b/doc/fluid/advanced_guide/addon_development/contribute_code/submit_pr_guide.md
index a43d38ee547..06cb8c07caa 100644
--- a/doc/fluid/advanced_guide/addon_development/contribute_code/submit_pr_guide.md
+++ b/doc/fluid/advanced_guide/addon_development/contribute_code/submit_pr_guide.md
@@ -26,7 +26,7 @@
 
 <div align="center">
 
-<img src="https://github.com/PaddlePaddle/FluidDoc/blob/release/1.1/doc/fluid/advanced_usage/development/contribute_to_paddle/img/cla_unsigned.png?raw=true"  height="330" width="400">
+<img src="https://github.com/PaddlePaddle/FluidDoc/blob/release/1.1/doc/fluid/advanced_usage/development/contribute_to_paddle/img/cla_unsigned.png?raw=true"  height="40" width="500">
 
  </div>
 
diff --git a/doc/fluid/advanced_guide/addon_development/contribute_code/submit_pr_guide_en.md b/doc/fluid/advanced_guide/addon_development/contribute_code/submit_pr_guide_en.md
index d71d92e3632..ee28c9f91eb 100644
--- a/doc/fluid/advanced_guide/addon_development/contribute_code/submit_pr_guide_en.md
+++ b/doc/fluid/advanced_guide/addon_development/contribute_code/submit_pr_guide_en.md
@@ -26,7 +26,7 @@ For the first time to submit Pull Request,you need to sign CLA(Contributor Licen
 
 <div align="center">
 
-<img src="https://github.com/PaddlePaddle/FluidDoc/blob/release/1.1/doc/fluid/advanced_usage/development/contribute_to_paddle/img/cla_unsigned.png?raw=true"  height="330" width="400">
+<img src="https://github.com/PaddlePaddle/FluidDoc/blob/release/1.1/doc/fluid/advanced_usage/development/contribute_to_paddle/img/cla_unsigned.png?raw=true"  height="40" width="500">
 
  </div>