diff --git a/EnvelopeGenerator.Application/SQL/DocumentCreateReadSQL.cs b/EnvelopeGenerator.Application/SQL/DocumentCreateReadSQL.cs
index 7fec8262..ed682b0e 100644
--- a/EnvelopeGenerator.Application/SQL/DocumentCreateReadSQL.cs
+++ b/EnvelopeGenerator.Application/SQL/DocumentCreateReadSQL.cs
@@ -14,11 +14,11 @@ public class DocumentCreateReadSQL : ISQL<EnvelopeDocument>
     /// </summary>
     public string Raw => @"
         DECLARE @BYTE_DATA1 as VARBINARY(MAX)
-        SET @BYTE_DATA1 = CONVERT(VARBINARY(MAX),{0})
+        SET @BYTE_DATA1 = @ByteData
         DECLARE	@OUT_DOCID int
 
         EXEC	[dbo].[PRSIG_API_ADD_DOC]
-		        {1},
+		        {0},
 		        @BYTE_DATA1,
 		        @OUT_DOCID OUTPUT
 
@@ -31,13 +31,12 @@ public class DocumentCreateReadSQL : ISQL<EnvelopeDocument>
     /// 
     /// </summary>
     /// <param name="base64"></param>
-    /// <param name="envelope_uuid"></param>
     /// <returns></returns>
-    public static DynamicParameters CreateParmas(string base64, string envelope_uuid)
+    public static DynamicParameters CreateParmas(string base64)
     {
         var parameters = new DynamicParameters();
-        parameters.Add("@Base64", base64);
-        parameters.Add("@OUT_UID", envelope_uuid);
+        byte[] byteData = Convert.FromBase64String(base64);
+        parameters.Add("ByteData", byteData, System.Data.DbType.Binary);
         return parameters;
     }
 }
diff --git a/EnvelopeGenerator.Infrastructure/Executor/DocumentExecutor.cs b/EnvelopeGenerator.Infrastructure/Executor/DocumentExecutor.cs
index 0b42a766..11088c63 100644
--- a/EnvelopeGenerator.Infrastructure/Executor/DocumentExecutor.cs
+++ b/EnvelopeGenerator.Infrastructure/Executor/DocumentExecutor.cs
@@ -18,9 +18,10 @@ public class DocumentExecutor : SQLExecutor, IDocumentExecutor
     {
         using var connection = new SqlConnection(Params.ConnectionString);
         var sql = Provider.GetRequiredService<DocumentCreateReadSQL>();
-        var formattedSql = string.Format(sql.Raw, base64.ToSqlParam(), envelope_uuid.ToSqlParam());
+        var formattedSql = string.Format(sql.Raw, envelope_uuid.ToSqlParam());
+        var param = DocumentCreateReadSQL.CreateParmas(base64);
         await connection.OpenAsync(cancellation);
-        var documents = await connection.QueryAsync<EnvelopeDocument>(formattedSql);
+        var documents = await connection.QueryAsync<EnvelopeDocument>(formattedSql, param);
         return documents.FirstOrDefault()
             ?? throw new InvalidOperationException($"Document creation failed. Parameters:" +
             $"base64={base64}, envelope_uuid='{envelope_uuid}'.");