Samsung Galaxy Tab, unlike other Android devices sports a much higher resolution of 1024×600. But, despite Samsung’s tweaks, it does make use of those ‘extra’ pixels effectively.
The default density value of the display is 240 but if your change it to 200, you will get much better results. Here is how you can do it, but first you will need to root your device, which can be done easily by doing rooting the device. Follow these instructions on how to root it.
Now download the app called LCDDensity for Root. There are other apps too that provide this functionality, but they all cost money. This one is free.