...

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

@@ -54,9 +54,9 @@ object PdfBoxUtils {
 
     fun checkPdfEncryption(filePath: String = "", uri: String? = null): Int {
         var state = 0
+        var pdfDocument: PDDocument? = null
         try {
-            val pdfDocument = loadPDDocument(filePath, null, uri)
-
+            pdfDocument = loadPDDocument(filePath, null, uri)
             pdfDocument.use { document ->
                 if (document.isEncrypted) {
                     println("The PDF is encrypted.")
@@ -81,6 +81,8 @@ object PdfBoxUtils {
         } catch (e: IOException) {
             e.printStackTrace()
             state = 1
+        } finally {
+            pdfDocument?.close()
         }
         return state
     }