Bridge copy/paste function???

No need to try all the functions here, let me provide some suggestions:

1) this shows the number of images you've selected. In the screenshot below I have 5 images selected (that way, if you think you have 100 selected but you see 2 or 200, there's something that needs to be started again.

2) Where do you want them saved? Hint, whatever you chose, it will place the results in a folder with the name of the kind of image they are. So if you save as jpg images, you'll have a folder called JPG inside the parent folder that contained the original images. Note: if you do both JPG AND TIF, you will have two folders with that name.

3) Set whatever image format you want the images saved as (see above for what happens) You can also set maximum size: if you have rectangle images, and you enter 1000 pixels for both height and width, than whichever is the largest dimension is the one that will be honored, you will not get square images as a result. This way it will handle both portrait and landscape images.

4) Here's where you can set an action to happen. First you select the folder that the Action is located, then you select the Action you want. 

I do suggest you run this with (say) 4-5 images to make sure that it's running what you want to happen, then do the rest. Running this will leave the original images as they were and will not be changing them at all.

Good luck!