...

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfBoxUtils.kt

@@ -94,8 +94,11 @@ object PdfBoxUtils {
         ownerPassword: String
     ): Boolean {
 
+        var pdDocument: PDDocument? = null
         try {
-            PDDocument.load(File(sourceFilePath)).use { document ->
+
+            pdDocument = PDDocument.load(File(sourceFilePath))
+            pdDocument.use { document ->
                 val ap = AccessPermission()
                 ap.setCanPrint(false)
                 ap.setCanModify(false)
@@ -111,6 +114,8 @@ object PdfBoxUtils {
             LogEx.logDebug(TAG, "setPassword Exception ${e.printStackTrace()}")
             e.printStackTrace()
             return false
+        } finally {
+            pdDocument?.close()
         }
         return true
     }