What specific task do you have in mind? If it's a one off for A4 stationary then these are probably a bit beyond what you are looking for. I'm sure there are free generators out there on the web that you could use to create just the barcode element and place it into a template of your own creation. Here's the first one I stumbled across Barcode Generator
how about Label Mx Pro.one of my friend tell me it is really good! maybe you can have a try. he doesn't have much professional experiences, but with this software, he said he can create an attractive lable! so if you want to learn more about it, maybe you can search it in google!