Minor edits to iPhone/Android/Bby app code & minor edits to pdf doc

Hi, I need the following: (1) Very minor modifications to an iPhone, Android & Blackberry app someone else designed. I will provide the original source code, I just need to change the app name (as it appears on phone screen) and the logo that appears as the app loads after you click on it. ( I will provide the new logo I need inserted) (2) Since this logo/name substitution in part (1) is probably just a cut and paste into the app code I would like instructions on how to do it myself next time. For more advanced work I will still be hiring people. This should be very easy take 30-45 minutes. (3) I need very minor changes to a PDF of 3 different business cards. Again I will send the original PDF files, but you need to have the software to do edits. It must be top quality resolution so I can upload it to be printed. Should take 10 minutes tops. THIS MUST BE DONE BY THIS FRIDAY July 12 at 2pm EDT. Thank you, Dan