There are many free header images available for download on the internet just search for free psd headers You can then modify the text or add text to the header and make it your own. Or you can create your own header from scratch with a background, a gradient background or an image for a background. You can then add smaller images on top of the background. You see many headers composed of several images laid over a background.

GIMP stands for GNU Image Manipulation Program GIMP is a FREE, open-source program which allows you to do many of the things that Photoshop does. Photoshop costs around $600. If you just want to do some occasional editing as in Creating a Website Header, GIMP seems to be a much better choice.

This document uses Gimp Version 2.4.5 as an executeable (ends in .exe) meaning that if you double click the file name, it will execute or run a program (in this case, an Installation Program).
You can download Gimp for FREE here: http://gimp-win.sourceforge.net/stable.html
Save the file on your desktop or to your main drive in the folder named gimp c:\gimp\
Once you have it on your computer, double-click on the filename and it will begin the Installation. You will see a Welcome to the Gimp Setup Wizard as shown below.

Download pdf How to Create a Header Image for Your Website Using the Free GIMP Program