Contact Us
Question about a specific tool, found something broken, or have an idea for a feature? Send us a message below — a real person reads every one.
Get in Touch
Email Support
For general questions, technical issues, business inquiries, or feature requests, email us directly.
support@masterpdf.inResponse Time
We typically reply within 24–48 hours. Weekends and holidays can push that a bit longer, but every email gets a response.
Reporting a Problem
If a tool isn't working as expected, tell us which browser and operating system you're using and what exactly happened (e.g. "merge failed after uploading 3 files on Chrome for Android"). That level of detail is usually the difference between a fix in a day versus a week.
Tool Requests
Missing a tool you need regularly? Tell us what it is and what you'd use it for — most of what we've built came directly from requests like this.
Business & Partnerships
For advertising, collaborations, or other business inquiries, include "Business Inquiry" in your email subject line.
Frequently Asked Questions
Are PDFMaster tools really free?
Yes. All core PDF tools are free to use and don't require an account.
Are my uploaded PDF files safe?
Files are processed only to perform the requested operation and are automatically deleted afterward. See our Privacy Policy for the full details on how uploads are handled.
How do I report a bug?
Email us with "Bug Report" in the subject line and as much detail as you can — browser, device, and what you were trying to do.