/// <summary>
        /// Returns true if PdfFlattenParameters instances are equal
        /// </summary>
        /// <param name="input">Instance of PdfFlattenParameters to be compared</param>
        /// <returns>Boolean</returns>
        public bool Equals(PdfFlattenParameters input)
        {
            if (input == null)
            {
                return(false);
            }

            return
                ((
                     FileId == input.FileId ||
                     (FileId != null &&
                      FileId.Equals(input.FileId))
                     ) &&
                 (
                     FlattenAnnotations == input.FlattenAnnotations ||
                     FlattenAnnotations.Equals(input.FlattenAnnotations)
                 ) &&
                 (
                     FlattenFormFields == input.FlattenFormFields ||
                     FlattenFormFields.Equals(input.FlattenFormFields)
                 ) &&
                 (
                     FlattenLayers == input.FlattenLayers ||
                     FlattenLayers.Equals(input.FlattenLayers)
                 ) &&
                 (
                     PageRange == input.PageRange ||
                     (PageRange != null &&
                      PageRange.Equals(input.PageRange))
                 ));
        }
 /// <summary>
 /// Gets the hash code
 /// </summary>
 /// <returns>Hash code</returns>
 public override int GetHashCode()
 {
     unchecked // Overflow is fine, just wrap
     {
         int hashCode = 41;
         if (FileId != null)
         {
             hashCode = hashCode * 59 + FileId.GetHashCode();
         }
         hashCode = hashCode * 59 + FlattenAnnotations.GetHashCode();
         hashCode = hashCode * 59 + FlattenFormFields.GetHashCode();
         hashCode = hashCode * 59 + FlattenLayers.GetHashCode();
         if (PageRange != null)
         {
             hashCode = hashCode * 59 + PageRange.GetHashCode();
         }
         return(hashCode);
     }
 }