How do I find and replace a text in a PDF?

From the Lumin home page, select Documents.

Open a document.

Click the magnifying glass or use the shortcut Control + F (Command + F) to trigger the find feature located on the menu bar on the right-hand side.

Enter the word you’d like to find in the document and the word to replace it with in its dedicated fields.

Check the Case-sensitive or Whole-word boxes to refine your search.

Then, finally, click Replace all to replace all of the words found or Replace to replace the word highlighted in light orange.