3 Separate Maps Need Compiling into One

I have 3 separate maps marking three separate zones in one area (Oxford). I need to have all these 3 zones marked on one map. Can someone help me by creating one map marking each zone in a different colour.. it isn't hard, just need to find a JPG map of Oxford and then use photoshop or similar to add the lines.

3 maps links:

NOTE: IT IS THE TOP MAP IN EACH PDF FILE, ONLY 1 MAP FROM EACH, IGNORE OTHERS

http://www.oxfordshire.gov.uk/cms/sites/default/files/folders/documents/childreneducationandfamilies/educationandlearning/schools/catchmentmaps/4077_all.pdf

http://www.oxfordshire.gov.uk/cms/sites/default/files/folders/documents/childreneducationandfamilies/educationandlearning/schools/catchmentmaps/4128_all.pdf

http://www.oxfordshire.gov.uk/cms/sites/default/files/folders/documents/childreneducationandfamilies/educationandlearning/schools/catchmentmaps/4120_all.pdf