When using the Barcode Wizard, CorelDRAW® inserts a barcode as a single object, which makes editing the barcode difficult. However, you can insert the barcode as an editable group of vector objects.  Select the barcode, and click Edit > Cut. Then, click Edit > Paste Special. In the Paste Special dialog box, choose Picture (Metafile), and click OK. The barcode will be pasted as an editable group of objects. To ungroup the objects that make up the barcode for editing, click Arrange > Ungroup.

Provided by Pratik Shah, CorelDRAW  Master, graphic designer.