This is predicated mainly on three things.
How to hang up picture frame on wall.
If you are using one or two picture hangers and wire strung on the back of the frame hang the picture and then use the level.
Depending on the kind of frame you are hanging the frame may hang lower on the fastener.
Hook a measuring tape onto the hanging wire attached to the back of the frame or whatever will be sitting on the nail to hold up the picture.
If you want to hang a group of pictures for a gallery wall hang the center of the grouping at 57 inches.
With groupings the largest frame is usually best in the center or at the center bottom.
Take down the picture.
If you re hanging a larger picture frame the back outside edge with adhesive or tape.
Lay the picture face down on a flat surface and hook a measuring tape on the hanging wire on the back of the picture then pull the wire up towards the top of the picture until it is taut.
Wire ring sawtooth hanger etc and wall material.
The 57 inch standard is based on the average eye height of an adult and is the rule used to determine how high to hang pictures in museums and galleries.
Remove the back liner from the adhesive strip and apply it directly to the wall where you want to hang your picture.
Pull the wire tight and.
Use a measuring tape to determine what point on the wall to hang your picture from.
Clean the surface of your wall with a 1 1 solution of water and rubbing alcohol.
To hang a picture hold it up against the wall where you want it to hang then use a pencil to mark the wall along the top center of the frame.
Get an approximate weight of the picture you re trying to hang.
Once you ve got your tape or adhesive in place pick up the picture line it up on the wall and press it against the wall to affix the adhesive or tape to the wall.
If you are using two d rings to hang a picture from two picture hangers mark the spots for the hardware on the wall and use the level to be sure they re even.
For most prints and most walls standard nails or picture hanging hooks work just fine.
If the frame has a d ring or other metal loop on the back simply measure from the top of the frame to the height of the ring.
Adjust as necessary before putting hardware in the wall.