diff --git a/.gitignore b/.gitignore
index 34e2d1f..3c3e9bd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,5 +13,5 @@
 .externalNativeBuild
 .cxx
 local.properties
-/release
-/debug
+release
+debug
\ No newline at end of file
diff --git a/app/src/main/java/com/all/pdfreader/pro/app/ui/act/PdfViewActivity.kt b/app/src/main/java/com/all/pdfreader/pro/app/ui/act/PdfViewActivity.kt
index f135d0e..b65c960 100644
--- a/app/src/main/java/com/all/pdfreader/pro/app/ui/act/PdfViewActivity.kt
+++ b/app/src/main/java/com/all/pdfreader/pro/app/ui/act/PdfViewActivity.kt
@@ -546,7 +546,9 @@ class PdfViewActivity : BaseActivity(), OnLoadCompleteListener, OnPageChangeList
 
     override fun onDestroy() {
         super.onDestroy()
-        searchManager.closeCachedDocument()
+        if (::searchManager.isInitialized) {
+            searchManager.closeCachedDocument()
+        }
     }
 
 }
\ No newline at end of file
diff --git a/keyinfo/info.txt b/keyinfo/info.txt
new file mode 100644
index 0000000..f63284c
--- /dev/null
+++ b/keyinfo/info.txt
@@ -0,0 +1,3 @@
+文件：keyinfo/pdf
+别名：pdf_key0
+密码：123456
\ No newline at end of file
diff --git a/keyinfo/pdf b/keyinfo/pdf
new file mode 100644
index 0000000..e7f29a7
Binary files /dev/null and b/keyinfo/pdf differ