# Output tab

The table in the **Output** tab provides details of the fields that are read from the binary data and how those fields are placed in the PDI stream as output from the step.

![Output tab, Copybook Input step](https://3411831820-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAYwCj9fPr1B2pjC11IOQ%2Fuploads%2Fgit-blob-4afd1aa3a35bc97c5831900dfe6c133671429768%2FPDI_CopybookInput_OutputTab.png?alt=media)

You can populate the table using either the **Get Fields** or **Get Fields with Parent Groups** commands. These commands extract directly from the copybook definition file selected in the **Input** tab. Use the **Get Fields with Parent Groups** command if you want to include the higher-level organizational data from the copybook definition file that omits the PICTURE clauses.

To pass the input fields to the PDI output stream, select the **Pass through input fields** check box. Clear this check box to omit the input fields from the PDI output stream.

**Note:** This option is only available if you chose either the **File defined in a field** option or the **Data already loaded in a binary field** option, located in the **Source** section of this step's [**Input**](https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview/copybook-input-pdi-step/options-copybook-input-step/input-tab-copybook-input-step) tab.

The output table contains the following columns.

| Column         | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Name**       | The name of the field in the PDI output stream. You can revise or update this field name as necessary.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| **Path**       | The fully qualified path to the binary data column in the copybook definition file.**Note:** This field cannot be edited. It is controlled by the copybook definition file.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| **Dest Type**  | <p>The PDI data type of the column mapped from the column definition.<strong>Note:</strong> This field cannot be edited. It is controlled by the copybook definition file.</p><ul><li>X becomes <strong>String</strong></li><li>COMP, COMP-3, and DISPLAY become <strong>BigNumber</strong></li><li>COMP-1 and COMP-2 become <strong>Number</strong></li><li>Parent groups become <strong>Binary</strong></li></ul>                                                                                                                                                                                                                                                                |
| **Conversion** | <p>This data type is read from the source data for a given field.- <strong>Dest Type</strong></p><p>(Default) The field are cast to the PDI type in the <strong>Dest Type</strong> column.</p><ul><li><strong>String</strong></li></ul><p>The column is converted to the <strong>Dest Type</strong>, then cast into a string.</p><ul><li><strong>Hex String</strong></li></ul><p>The bytes of the underlying data are converted to a hex string. The output field is a string data type.</p><ul><li><strong>Binary</strong></li></ul><p>The bytes of the underlying data of the column are not converted, but are instead extracted and placed on the stream as a binary type.</p> |