How to concurrently, efficiently remove repeated instances of the same text in a PDF?

[scherz0]

This purchased PDF (that I didn't create) repeats the text, underlined in green, under each diagram. Undeniably, deleting each instance one by one is too inefficient! How can I delete this text productively, synchronously, at one fell swoop?

 

[DVDR_Dog]

Here you go:

Find and Delete Duplicate PDF Pages

Step by step tutorial on finding and deleting duplicate and near-duplicate PDF pages using the AutoSplit™ plug-in for the Adobe® Acrobat®

www.evermap.com

Me? I convert to .docx and use the find feature. granted it's one by one but it's still quick and painless. The alternative seems very complicated.