PDF Compare
Original PDF
Drop the original PDF
Changed PDF
Drop the changed PDF
Comparison is based on extracted text. Added text is highlighted green, removed text is struck through. Processed privately in your browser.
What is PDF Compare?
PDF Compare is a free online tool that lets you compare two PDFs and highlight the text differences. There is nothing to install and nothing to pay for — open the page, add your file, and you are ready to go in seconds. Because PDF Compare runs entirely in your web browser, it works the same on Windows, macOS, Linux, Android and iPhone, so you can compare pdf from a laptop at your desk or a phone on the move.
Traditional PDF software is often slow, expensive and packed with features you will never touch. PDF Compare takes the opposite approach: it does one job — compare pdf — and does it well, with a clean interface that anyone can use without a tutorial. Whether you handle documents every day or only occasionally need to pdf compare, you get a fast, reliable result without watermarks, sign-up walls or hidden daily limits.
Who is PDF Compare for?
PDF Compare is ideal for reviewers and teams who need to read, search or compare documents carefully. If you have ever searched for a quick way to compare pdf without downloading bulky programs or creating an account, this is built exactly for you. It fits neatly into everyday workflows for freelancers, students, small businesses and large teams alike.
Why use PDF Compare?
- Open, search and inspect PDFs instantly without extra apps — completely free, with no account required.
- Private by design: your files are processed in your browser and are not stored on our servers.
- Works on any device and modern browser, with no installation or plugins.
- No watermarks, no daily caps and no email sign-up to download your result.
- A simple, distraction-free interface that makes it easy to compare pdf on the first try.
When should I use PDF Compare?
- Find a clause across a long contract, or spot the differences between two versions.
- Prepare a document quickly before an important deadline or meeting.
- Handle a one-off view & analyze task without buying a subscription.
- Fix or adjust a file someone else sent you, right from your browser.
Is PDF Compare safe and private?
Privacy is a core part of how PDF Compare works. Wherever technically possible the entire process happens locally inside your browser, which means your documents are not uploaded, shared or kept after you leave the page. Nothing is added to your file — no tracking marks and no promotional watermarks — so the output is clean and ready to send, print or archive. This makes PDF Compare a safe choice even for sensitive material such as contracts, statements and personal records.
How do I use PDF Compare?
- Upload the original and changed PDFs.
- Click Compare.
- Review highlighted additions and removals.
How do I get the best results with PDF Compare?
- Use specific search terms and compare final versions side by side to catch changes you might otherwise miss.
- Use an up-to-date browser such as Chrome, Edge, Firefox or Safari for the smoothest experience.
- For large files, give the tool a moment to finish — everything runs on your own device, so speed depends on your hardware.
Frequently asked questions
- How do I compare two PDFs?
- Upload both files and the tool highlights added text in green and removed text struck through.
- Does it compare images?
- No, comparison is based on extracted text.
- Is it private?
- Yes, comparison runs in your browser.
Ready to compare pdf? Add your file above to get started — it only takes a few seconds, it is completely free, and your documents stay private on your device. If you need to do more afterwards, explore our other View & Analyze tools to finish the whole job in one place.