Guide
“Here is the revised PDF.” Okay… what actually changed?
Before rereading the whole document, narrow down the pages with differences, then inspect text changes and visual changes separately.
Start by finding the changed pages
A 40-page PDF with “a few small fixes” is exactly the kind of thing people end up rereading from page 1. A comparison pass can tell you where to look first.
The useful question is not only “what changed?” but also “did anything else change by accident?”
Text and appearance are two different checks
A price change may alter only a few characters. A moved image may change the page visually without changing the extracted text much. Run both checks when layout matters.
Small differences can be the important ones
Dates, amounts, model numbers, and legal wording may create only a tiny diff area. Do not rank importance by how much of the page changed.
Use the tool as a filter, not as the final reviewer
Let the comparison narrow the work down, then open the flagged pages and read them normally. That is usually faster and safer than trusting either pure automation or pure eyeballing.
A useful final question
After you confirm the intended edit, ask one more thing: “Did anything else change?” That catches accidental layout shifts, missing pages, and tiny number edits that were never part of the request.