Compare PDF files side by side for free. View differences between two PDF documents online. Our browser-based tool is private, fast, and requires no uploads.
or click to browse
or click to browse
为保护您的隐私，所有处理均直接在您的浏览器中进行。这意味着：
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.