Frequently Asked Questions
Is this service really 100% free?
Yes! All 23 PDF tools (merge, split, compress, convert, sign, watermark, edit, etc.) are 100% free with no artificial page limits, watermarks, or paywalls added to your downloads.
How is JustPDFConverter funded without charging users?
To keep all tools free for students, job applicants, and professionals globally, we display ethical, non-intrusive advertisements served through trusted partners like Google AdSense. We do not sell your personal data or charge subscriptions.
Are my sensitive documents uploaded to a server?
No. All file processing runs directly on your machine via JavaScript & WebAssembly. Your confidential files never touch external cloud servers and are cleared from your device memory when the tab closes.
Are electronic signatures added with your tool legally valid?
Yes. Electronic signatures added via our Sign PDF tool are legally recognized under the United States ESIGN Act, Uniform Electronic Transactions Act (UETA), and EU eIDAS regulations for standard private and business contracts.
Can I use this on mobile devices?
Yes! The entire interface is responsive and works seamlessly across iOS Safari, Android Chrome, tablets, and desktop browsers with no app download required.