Let me add one thing. The door panel will have to come off if you remove all the screws on the door side of a hinge. There's a metal backing plate inside the fiberglass which may or may not actually be attached with adhesive to the door. If it isn't -- and if you take all the screws out -- it will fall to the bottom of the inside of the door.
Don't panic if it does.
To remove and replace the door hardware (the little door handle on the inside and any 'pull' mechanism on the door skin is super easy. There's a cotter pin holding the actuator to open the door; again, if you remove it, you should put it in a cup or something on the driver's seat. It's easy to lose little pins and bolts, and hard to find replacement parts.
Remove the pull lever carefully from its splined shaft, then remove all the screws around the door's edge. The upholstery is only applied with screws in most cases, not glue. Remember to put the parts in the bowl, baggie or whatever -- and count them as they come out. You'll know they're all there when you go to put them back in. :)
The plate is super-easy to align with the door apart, so you might as well make your adjustments with the panel off (assuming the plate fell, naturally -- don't go through this if you don't have to!) and reassembly is easy also. The above steps to put the doors back into adjustment will still apply, once the plate is back where it should be.
The "car-side" hinge screws usually screw right into a two-inch piece of box tubing, and no disassembly is needed if those screws come all the way out -- again, easily avoidable if you only take two out, not all three -- but it's easier to adjust the doors if the door hasn't been completely removed from the car. You'll need help if the door comes off.
It also is possible, you're only making adjustments to loose screws and nothing untoward happens while you're tightening them, to put a floor jack, stack of books or whatever you want to under the trailing edge of the door in order to get the alignment you want with the door open. Check the height from the floor to the ideal height of the door's bottom edge, set your jack appropriately and then rest the door on the jack while you adjust the screws.
If you use the jack method, DO NOT attempt to sit on the door sill while making that adjustment. The car will sink a bit under your weight, and you'll wreck your door.