How to compare two PDFs online
Upload the original (base) PDF and the revised (new) PDF, then pick a comparison method. Adobe PDF Services produces a professional annotated report highlighting insertions, deletions and moves as a downloadable PDF. Visual Side-by-Side renders both documents in your browser and highlights changed pixels directly, with no upload required.
Which method should I use?
Use Adobe PDF Services for a polished, shareable report — useful for contracts or formal document reviews. Use Visual Side-by-Side when you want an instant, private comparison without uploading anything, or when you just need to eyeball what moved on the page.
💡 Tip: in Visual Side-by-Side mode, switch between "Side by Side," "Diff Only" and "All Three" views using the tabs above the comparison — "Diff Only" is the fastest way to spot every change at a glance.
Why use U Love Office to compare PDFs?
- Two methods — a professional report, or a fully private in-browser diff.
- No signup required — upload and compare immediately.
- Visual clarity — removed, added and changed content are color-coded.
- Free — no credits, no paywall.