No, but you can add these yourself in System Preferences > Keyboard > Shortcuts > App Shortcuts.
Assign one - like I’ve shown above - then click and drag on the PDF to set a textbox width, then start typing.
And yes, that’s all one Text annotation 
No, but you can add these yourself in System Preferences > Keyboard > Shortcuts > App Shortcuts.
Assign one - like I’ve shown above - then click and drag on the PDF to set a textbox width, then start typing.
And yes, that’s all one Text annotation