I have 2 pdfs, version 1 and version 2. Using compare pdf, I can able to view the changes made and save the compare report and see side-by-side.

But, when I send the compare report for shared review, but the reviewers can see only the new file with comments and can not see side-by-side on browser.

Enable side-by-side view for shared review through browser. So the reviewers can easily identify the changes from version 1 to version 2 and it is easy for them to review.