TECHNICAL INQUIRIES & FEEDBACK
Contact Support
Have a technical question, bug report, or feature request? We would love to hear from you. Our engineering team reviews every message.
Support Details
Response Turnaround
We aim to respond to all technical inquiries and suggestions within 24 to 48 business hours.
Direct Email
support@pdftoolshub.com
Feature Suggestions
Have an idea for a new client-side PDF tool or conversion capability? Let us know!
Architecture Guarantee:
Please note that our team cannot access, inspect, or restore your files. Because all processing is client-side, your document data does not exist on our servers.SUPPORT KNOWLEDGE BASE
Common Questions & Inquiries
Quick answers regarding privacy, file limits, and commercial usage.
01How can I verify that my PDF files are never uploaded to any server?
All processing logic executes entirely inside your browser tab using WebAssembly and client-side JavaScript. You can verify this yourself by opening your browser DevTools (Network tab) and observing that zero file payloads are transmitted when performing operations.
02Why did my exceptionally large PDF file cause my browser to slow down?
Because all processing happens in your device local RAM, documents with thousands of high-resolution images require sufficient available system memory. For exceptionally large files (over 200MB), close other background browser tabs to free up RAM.
03Are PDFToolsHub tools completely free for commercial and enterprise use?
Yes. All 26 tools are completely free for personal, educational, and commercial purposes with zero licensing fees or subscription requirements.
04Do you offer an enterprise desktop version or offline software?
Because PDFToolsHub is a Progressive Web Application that executes locally, you can use our web tools anytime your browser is open. In fact, after the initial page load, our tools continue to process files even if your internet connection is temporarily disconnected!