I have found this closet door which I like on Wayfair. The doors height is 78" and they recommend a opening height of 80" but my closet opening height is 79". I am wondering if I can trim about an inch off the bottom of this door to make it fit. It's a sliding door with top track only and they say it's made of 'solid MDF and covered with eco-friendly finishes'. Could you kindly take a quick look and let me know (I posted the link to the wayfair website). I very much appreciate your help with this. Also please let me know what type of saw is best to cut this. https://www.wayfair.com/home-improvement/pdp/ark-design-glass-sliding-closet-door-with-installation-hardware-kit-akde1107.html?piid=67685336
The assembly instructions show that the door is held together with bolts including a pair of bolts that appear to be less than an inch from the bottom of the door. Measurements are not provided but it appears that way in the diagrams. So I would say no, you cannot trim an inch from the bottom of the door. You would be reducing the strength and integrity of the door, which is a frame enclosing several glass panels ... not a good idea.
There are a lot of sliding doors that are documented to allow trimming of the bottom. Maybe you should search for one of those, or one that just fits especially if you want one with glass panels.