Text can be copied from a secured file

I have a Word document that I have exported as a PDF. Then in Acrobat Pro XI I have applied security settings:

Restrict editing and printing of the document. A password will be required in order to change the permission settings.

I have enabled High Resolution printing.

Changes allowed is set to "Commenting, filling in form fields, and signing existing signature fields".

I have NOT selected the option to "Enable copying of text, images, or other content".

I have selected "Enable text access for screen readers for visually impaired".

Finally, I have it password protected in order to change any of these settings.

However, I recently found with barely any searching, TWO apps in Chrome that allows the text to be copied and pasted, or exported directly to Word.

How do I prevent this from happening?