Dulce,
Thanks for asking your question to planDisney!
Disney does not send out park maps any longer, but if you would like to get the current park maps, the fastest and easiest way to get them is to print them out from the website. Now I know you said that when you print them out from online, they can be hard to read. However, I wanted to make sure you had found the link to the actual map PDFs that are at the bottom of each park's page.
I just downloaded one for the Magic Kingdom, and because it was in a PDF format, I could enlarge it significantly and found it very legible. This may be what you were doing, and you don't find them big enough to help, but I figured it was worth repeating. You can find these PDF printable versions of the actual in-park maps for the
Magic Kingdom Park,
EPCOT,
Disney's Hollywood Studios, and
Disney's Animal Kingdom Theme Park by clicking on the guide map link at the very bottom of the respective web pages for each park.
BONUS TIP #1If my solution does not work, there are folks who will sell them via sites like eBay. But Disney updates the maps quite regularly, so it is hard to know if you are even getting the most up to date version. Be sure you check how new they really are.
BONUS TIP #2Printable maps are also available for
Disney Springs, and the two water parks,
Disney's Blizzard Beach and
Disney's Typhoon Lagoon.
Write me back if you have any follow-up questions.
Have a Magical Vacation!Doug