void ReplaceText(Paragraph paragraph)
        {
            var parent = paragraph.Parent; //get parent element - to be used when removing placeholder
            var dataParam = new PowerPointParameter();

            if (ContainsParam(paragraph, ref dataParam)) //check if paragraph is on our parameter list
            {
                var param = CloneParaGraphWithStyles(paragraph, dataParam.Name, dataParam.Text); // create new param - preserve styles
                parent.InsertBefore(param, paragraph);//insert new element

                paragraph.Remove();//delete placeholder
                saveFile = true;
            }
        }