diff --git a/.gitattributes b/.gitattributes
index 67c48ea..5dedd2c 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,2 @@
-*   text eol=lf
\ No newline at end of file
+*   text eol=lf
+*.pdf binary
\ No newline at end of file
diff --git a/cli.py b/cli.py
index a8e47e2..9553c83 100644
--- a/cli.py
+++ b/cli.py
@@ -79,7 +79,7 @@ def buildPdf(args):
     if args.verbose:
         print("build start")
         print("print url", url)
-    cmd = ["deno", "run","--unstable" ,"-A","tools/printPdf.ts", "--outDir", args.outDir, "--url", url]
+    cmd = ["deno", "run","--no-check","--unstable" ,"-A","tools/printPdf.ts", "--outDir", args.outDir, "--url", url]
     if args.browser_path:
         cmd.append("--chromeDir")
         cmd.append(args.browser_path)
@@ -87,6 +87,11 @@ def buildPdf(args):
         print("cmd: ", " ".join(cmd))
     p = subprocess.run(cmd)
     p.check_returncode()
+    cmd = ["java", "-jar", "tools/pdfbox-app-2.0.26.jar", "PDFMerger", "cover.pdf", args.outDir, args.outDir]
+    if args.verbose:
+        print("merge cmd: ", " ".join(cmd))
+    p = subprocess.run(cmd)
+    p.check_returncode()
 
 commandList = {
     'build': build,
diff --git a/cover.pdf b/cover.pdf
new file mode 100644
index 0000000..9f122f6
Binary files /dev/null and b/cover.pdf differ