Frequently Asked Questions
❓ Is PDF Merge Pro really free?
Yes! PDF Merge Pro is completely free to use. There are no hidden fees, no registration required, and no usage limits.
❓ Are my files secure?
Absolutely! All processing happens locally in your browser. Your PDF files never leave your device and are never uploaded to any server.
❓ What is the maximum file size?
You can upload PDF files up to 100 MB each. There is no strict limit on the number of files you can merge.
❓ Do I need to install anything?
No installation needed! PDF Merge Pro works entirely in your web browser. Just visit the website and start merging.
❓ Why is my PDF not processing?
Make sure your file is a valid PDF and under 100 MB. If you continue to experience issues, try using a different browser or check your internet connection.
Get in Touch
Have a question, suggestion, or need help? We'd love to hear from you!
💡 Tip: Before contacting us, please check the FAQ section above. Most common questions are answered there!
Feedback
Have a feature suggestion? Let us know!
We love hearing ideas from our users
Bug Reports
If you've found a bug, please include the following information in your email:
- Browser name and version (e.g., Chrome 120)
- Operating system (e.g., Windows 11, macOS)
- Description of the issue
- Steps to reproduce the problem
Feature Requests
We're always looking to improve! If you have ideas for new features or improvements, please send them to us. We read every suggestion.