For long documents, a page-by-page comparison lets you quickly identify which specific pages have changes without reviewing the entire document manually.
Go to pdfeditor.onl/compare-pdf. Upload File A (original) and File B (revised). Click Compare. The tool analyses every page pair simultaneously.
After comparison, a page navigation strip appears at the top. Each page shows its change percentage. Pages with orange or red badges have detected differences.
Tip: Click any page badge in the strip to jump directly to that page's comparison view. Sort your review from the most-changed pages down for efficiency.
For each changed page, use Diff view to see pixel-level highlights in red. Use Side by Side to read both versions simultaneously. Use Overlay to drag between the two versions.
Click Download All Pages as PDF to generate a complete page-by-page diff report. Each page shows differences highlighted in red.
Yes. The page strip shows the change percentage for each page. Click only the pages with non-zero change percentages.
Pages that exist in one PDF but not the other are shown as 100% changed. The summary shows total pages in each file.
No artificial limit. Very long documents process well — each page is analysed independently.