Compare two PDF documents side by side to easily spot differences, changes, and updates. Free, fast, and completely private.
Drag & drop or click to upload
Drag & drop or click to upload
Loading PDF files for comparison...
Use the navigation controls to compare pages.
A simple 3-step process to compare PDF documents side by side.
Click "Select First PDF" to upload your first document, then upload the second PDF file. Both files are processed locally and never leave your computer.
Choose your preferred zoom level, view mode (side-by-side, overlay, or split-screen), and enable page synchronization for easier navigation.
Click "Start Comparison" to load both documents. Navigate through pages using the controls and spot differences between the two PDF files easily.
Experience intuitive side-by-side comparison with unmatched privacy and flexibility.
All comparison happens in your browser. Your PDFs are never uploaded, ensuring your files remain completely private on your device.
Experience instant, in-browser comparison with no file size limits or hidden costs. It's completely free, forever.
Navigate through PDF pages synchronously or independently. Perfect for comparing document versions, contracts, and reports.
Get answers to common questions about our PDF comparison tool.
Our PDF comparison tool loads two PDF documents in your browser and displays them side by side. You can navigate through pages, zoom in/out, and choose different view modes to easily spot differences between documents. All processing happens locally in your browser.
Yes! You can compare PDFs with different numbers of pages. The tool will handle this gracefully, allowing you to navigate through all pages in both documents, even if one document has more pages than the other.
Absolutely safe! All processing happens directly in your browser using client-side JavaScript. Your PDF files never leave your device and are never uploaded to our servers. This ensures complete privacy and security of your documents.
Our tool offers multiple zoom levels (50% to 200%), view modes (side-by-side, overlay, split-screen), and page synchronization options. You can customize the viewing experience to best suit your comparison needs.
Currently, the tool focuses on visual comparison by displaying documents side by side. While it doesn't automatically highlight differences, the intuitive interface makes it easy to spot changes by visually comparing the documents.
Yes! The tool provides navigation controls that allow you to jump to any specific page in either document. Page synchronization can be enabled to keep both documents on the same page automatically.
Our PDF comparison tool works in all modern browsers including Chrome, Firefox, Safari, and Edge. PDF.js library support is built into most current browser versions, ensuring compatibility across different platforms and devices.
There are no artificial file size limits imposed by our tool. However, very large PDF documents may take longer to process and could be limited by your device's available memory. For best performance, we recommend PDFs under 50MB.
Yes! Our tool is fully responsive and works on mobile devices and tablets. You can select PDF files from your device and convert them to WebP images directly from your mobile browser.
If you encounter issues, try refreshing the page and uploading the PDFs again. Make sure you're using a modern browser and have sufficient memory available. For very large documents, the loading may take longer. If problems persist, please contact our support team.