Compare Two PDF Files Side by Side
When you have two versions of a document — an original and a revised draft, or a signed and unsigned contract — it can be hard to see exactly what changed. This tool renders both PDFs page by page and places them next to each other so you can visually scan for differences in text, layout, images and formatting.
How it works
Upload the original PDF on the left and the changed version on the right, then click Compare. Each page is rendered as a high-quality image and displayed in a matching row, making it easy to spot additions, deletions and moved content at a glance.
Private and free
Both files are rendered locally in your browser and never uploaded. There is no signup, no watermark and no cost, and it works on any modern device.