I just had the carpet removed and new white oak floors put down. The problem now is the door jams and the bottom of the doors are to short. Meaning there is a gap between the floor and the jam and even more from the bottom of the door to the floor. Is there a way to correct or fix this type of problem?

Thanks

You can try and plug it, but IMO it looks like a patch. The only true way to correct it, is to replace the trim, jamb casings and the door.

Only thing I know to do is to R&R all the interior door units and lower them, even then if you don't go ahead and cut off all the jambs you will still have too big of a gap between the flooring and the door bottom. What a headache that's going to be.

Depending on the size of the gaps and the style of your casings and doors and what you will accept. Small gaps (1/8") at door casings and jambs can be carefully caulked if the doors and casings are painted. And even stained casings can be caulked with a colored caulking. This is ok for small gaps. Paint grade doors can have an additional piece of wood added to the bottoms and then the patch can be sanded and painted to match the rest of the door. This only works for painted doors and then only if you aren't extremely picky as the patch may still show upon close inspection. Larger gaps in casings and jambs cam be added on to with the same material but that will also show upon close inspection. In the end, it's what you are willing to live with or how much you are willing to pay to get it just right

Our install plinth Blocks.

That would work for the casings but what about the jambs and the door itself?