Contact
Nilo Calderon
Developer & Creator of PDFWhisker
Hi there! I'm Nilo, an electronics engineer with a deep passion for both the physical and digital worlds. When I'm not writing code, you'll likely find me chasing waves while surfing, trekking up mountain trails, or diving into open water. I believe that the curiosity and problem-solving mindset that drives me outdoors is the same energy I bring to building software. PDFWhisker was born out of my desire to create a simple, privacy-focused tool that makes working with PDFs effortless for everyone. I'm always looking to improve it, so don't hesitate to reach out with ideas, feedback, or just to say hello!
Send a Message
Bug Reports
Found something that isn't working as expected? I want to know about it. When reporting a bug, please include:
- Which tool you were using.
- What you were trying to do.
- What happened instead of the expected result.
- Your browser and operating system.
- Any error messages you saw (a screenshot helps).
Response Time
I aim to respond to all inquiries within 1–2 business days. During peak periods, response times may be slightly longer. I appreciate your patience and will get back to you as soon as possible.
Frequently Asked Questions
Before reaching out, you might find the answer to your question here:
Is PDFWhisker really free?
Yes, all tools are completely free to use. There are no hidden charges, no premium tiers, and no limits on usage. The site is supported by advertising.
Are my files safe?
Absolutely. All files are encrypted during transfer and automatically deleted from the server within one hour after processing. Your file contents are never accessed or shared.
Do I need to create an account?
No. PDFWhisker works without any registration or signup. Just visit the tool you need, upload your file, and download the result.
What file size limits are there?
Files up to 100 MB per upload are supported. If you need to process larger files, feel free to reach out and we can discuss solutions.