Facebook fans might have not noticed, Facebook introduced new feature, photo editor with basic photo filters , overlay text , resize and emoji’s can be added in your photo.

Facebook photo Editor

its similar addition as we see in Instagram where users can edit photo before posting on their walls.
Facebook is very popular social site, and it is contentiously introducing amazing features.
in pictures below you can see how to use this photo editor feature:

Facebook photo Editor

when you will hover your cursor on pic you will see 2 buttons, one for tag & other for photo editing.

Facebook photo Editor

in next window you can chose some of basic photo filters , also you can text & stickers in your pictures.
after editing click save and you are good to post it,
For more help you can  watch following video