encrypt refactor

src/PrivatePdfConverter/Commands/EncryptPdf.cs

@@ -10,6 +10,7 @@ public static class EncryptPdf
     public static void EncryptPdfWithPassword(string path, string password, string? output)
     {
         Log.Logger.Information("Read 1 file with name: {FileName}, Full path: '{Path}'", Path.GetFileName(path), path);
+
         var outputFileName = output.PrepareOutputFileName();
         var exportFullPath = $"{path}/{outputFileName}";
 
@@ -22,15 +23,16 @@ private static void EncryptPdfFile(string path, string password, string outputFi
     {
         var passwordBytes = Encoding.Default.GetBytes(password);
 
-        var pdfReader = new PdfReader(path);
+        using var pdfReader = new PdfReader(path);
         var writerProperties = new WriterProperties()
             .SetStandardEncryption(
                 passwordBytes,
                 passwordBytes,
                 EncryptionConstants.ALLOW_PRINTING,
                 EncryptionConstants.ENCRYPTION_AES_128);
-        var pdfWriter = new PdfWriter(new FileStream(outputFileName, FileMode.Create), writerProperties);
-        var pdfDocument = new PdfDocument(pdfReader, pdfWriter);
+        using var pdfWriter = new PdfWriter(new FileStream(outputFileName, FileMode.Create), writerProperties);
+        using var pdfDocument = new PdfDocument(pdfReader, pdfWriter);
+
         pdfDocument.Close();
     }
 }