I worked at the supervisor of elections in Florida for a couple of races.

I was chosen as one of the signature verifiers and this is how it was done.

The signature they have on record flashed with the mail-in ballot signature below it.

As you look and they are the same you clicked the mouse okay. If they didn't look right you clicked no. The bar-coated balance you say no are then looked at visually.

But the screen flips as fast as you click okay for each signature verification.

Out of a couple thousand I actually saw two, unacceptable. One was signed with an x, which is allowed when you are old but you must put it on record in your handwriting at the soe office. There was still a recorded signature on file so I had to reject it. The other just didn't look anything like it.

If it is not accepted or pulled for visual verification, the voter is contacted to update their signature as they change over the years. They tell them whether their ballot was accepted or not and to update their signature on record.

But it goes pretty fast when you are looking at two signatures that are identical.