Image thumbnail plugin in new page

Hello,
I want your help. I’m looking for the appropriate plugin.
I’ve used custom fields so when the user creates a new page, he pastes the link of the image in order to appear.

What I am trying to do is something simple I think. The user uploads some images in thumbnails and by clicking on them to appear larger as it is shown in the image in the link:
https://imageshack.us/photo/my-images/192/thumblzh.jpg/

The buttons (right, left and zoom) are not necessary.

Which plugin do you recommend?

Thank you !!