Compare PDF
Easily display the differences between two similar PDF files
How It Works
Comparing PDF files with pdfLaunch is quick and accurate. Our online tool lets you spot differences between two PDF versions in three simple steps:
Upload two PDF files
Select both PDF documents you want to compare from your device or drag and drop them into the upload area.
Automatic comparison
Our tool automatically compares the two PDFs side by side, highlighting all differences, changes, and modifications between the documents.
Review differences
View the comparison results with highlighted differences. See exactly what changed between the two versions of your document.
No software installation or registration required. The entire process happens in your web browser, making it accessible from any device with an internet connection. Need to merge PDFs? Use our Merge PDF tool. Want to edit? Try our Edit PDF tool.
Use Cases
Our PDF comparison tool is perfect for a wide range of professional and personal tasks:
After comparing, you can also merge your PDFs using our Merge PDF tool, or edit them with our Edit PDF tool if needed.
Security & Privacy
Your privacy and data security are our top priorities
- Secure HTTPS upload: All file transfers are encrypted using HTTPS protocol, ensuring your documents are protected during upload and processing.
- Automatic processing: Files are processed automatically by our secure servers. No human access to your documents is required or permitted.
- Automatic deletion: All uploaded files are automatically deleted from our servers within 1 hour after processing. We do not store, archive, or share your documents.
- No registration required: You can use our PDF comparison tool without creating an account or providing personal information.
- Client-side processing: Where possible, file operations are performed in your browser to minimize server-side data handling.
Device & Platform Compatibility
Our PDF comparison tool works seamlessly across all devices and operating systems:
Desktop computers
Works on Windows, macOS, and Linux systems. Compatible with all major web browsers including Chrome, Firefox, Safari, and Edge.
Mobile devices
Fully functional on iPhone and Android smartphones. The responsive interface adapts to your screen size for optimal mobile use.
Tablets
Optimized for iPad and Android tablets, providing a smooth comparison experience on larger touch screens.
No installation required
Since it's a web-based tool, you don't need to download or install any software. Simply open the tool in your browser and start comparing.
Whether you're at home, in the office, or on the go, pdfLaunch's PDF comparison tool is always accessible and ready to use.
Frequently Asked Questions
Is comparing PDFs free?
Yes, comparing PDF files with pdfLaunch is completely free. There are no hidden fees, subscription requirements, or usage limits. You can compare as many PDFs as you need without any cost.
What differences will be highlighted?
Our comparison tool highlights text changes, additions, deletions, formatting differences, and structural changes between the two PDF documents.
Can I compare PDFs with different page counts?
Yes, our tool can compare PDFs with different page counts. It will highlight pages that were added, removed, or modified between the two versions.
Does it work on mobile?
Yes, our PDF comparison tool is fully functional on mobile devices. It works on both iPhone and Android smartphones, with a responsive design that adapts to your screen size. You can compare PDFs directly from your mobile browser without any app installation.
What happens to my files?
Your files are processed securely and automatically deleted from our servers within 1 hour after processing. We do not store, archive, or share your documents. All file transfers are encrypted using HTTPS, and no human access to your files is required or permitted.
What is the maximum file size I can compare?
You can compare PDF files up to 100 MB each. This is sufficient for most PDF documents including large reports, books, and documents with images.
Do I need to create an account?
No, you don't need to create an account or provide any personal information to use our PDF comparison tool. Simply upload your PDFs and start comparing immediately.