We all have some graphics programs on our computers and they have import and export commands. Explore those areas of your computer programs. Everyone has their favorite programs mine is Corel Draw. It is expensive but Corel 5 can be found at a cheap price from those who are upgrading to Corel 8. If you have children it is worth investing a few hundred for the program.
Webpages have images and they are bitmaps.
The images on this page are stored on the server at a reasonable size to use on the web page. You can simply use your right mouse button to click over any image webpages and store the image on your computer. Import the files it into a program adjust the size and use it. Vector formated image might be placed on a special down loadable place on these pages in the future but for now send me an email with the description. I will send the image to you via e-mail.