diff --git a/src/main/webapp/kccadrPb/tutorial/image/03.gif b/src/main/webapp/kccadrPb/tutorial/image/03.gif
index 4f5a213f..20fccc68 100644
Binary files a/src/main/webapp/kccadrPb/tutorial/image/03.gif and b/src/main/webapp/kccadrPb/tutorial/image/03.gif differ
diff --git a/src/main/webapp/kccadrPb/tutorial/image/03_230818_bak.gif b/src/main/webapp/kccadrPb/tutorial/image/03_230818_bak.gif
new file mode 100644
index 00000000..4f5a213f
Binary files /dev/null and b/src/main/webapp/kccadrPb/tutorial/image/03_230818_bak.gif differ