Some PDF editing software tools allow users to edit multiple PDF documents at the same time, such as the same word across several PDFs. To edit the same word across multiple PDFs using Adobe Acrobat DC:
Choose the Advanced Search command from the Edit menu.
In the search dialog box, choose, “All PDF Documents in,” and identify the search location, such as the local drive.
Enter the word you’d like to search for and replace.
Specify search and replace settings such as, “whole words only,” “case-sensitive,” or “include comments.”
A list of documents containing the word will appear. Select the relevant file names to be edited.
Click, “Find a word in the current document” at the bottom of the box.
A Find and Replace dialog box will appear. Enter the term that needs edited across multiple PDF files, and click, “Replace.”