Our Principles
How we build OptimaPDF — transparently and fairly.
1. 100% free for every user
All 40+ PDF tools and AI features (within the daily limit) are and will remain free — no hidden fees, no credit card, no registration, no subscription required to use the tools. In the future, we plan a separate paid Optimapdf for Business plan with additional features (higher AI limits, priority support, API). This does not change anything for the current free features — they remain available to everyone at no charge, just as they are now.
2. Why is there an AI limit (15 queries per day)?
AI features (AI Chat, AI Summary, AI Translate) are free and do not require your own API key — every user gets 15 queries per day at no charge. The limit exists because each AI query costs us money (OpenRouter API fees). Unlike the tools that process your file in your browser, AI requires communication with an external server, generating real operational costs. The 15 queries per day limit allows us to offer this feature for free to all users without introducing subscriptions or fees.
3. Your privacy comes first
OptimaPDF is built on the privacy by design principle. Most tools process files entirely in your browser — the file never leaves your device. We do not require registration, login, or any personal data.
4. Technical transparency
We clearly indicate which tools work client-side (in your browser) and which require server processing. We always communicate what happens to your file at every step.
5. Security first
We use an encrypted HTTPS connection, a Content Security Policy, API abuse protection and request limits. Most importantly, the file tools run in your browser, so your files never reach our server at all.
6. Ads and tracking — fairly and transparently
The site currently shows no ads. In the future we may introduce discreet ads (e.g. Google AdSense) to cover hosting and development costs — if that happens, we will update this information. Either way, all PDF tools will stay free. We use Google Analytics only with your consent, which you can withdraw at any time with the "Cookie settings" button. We use no remarketing pixels or behavioural profiling.
Voluntary support
You can voluntarily support the development of OptimaPDF through the Support page. This is completely optional and does not affect access to any feature — tools remain free regardless of whether you choose to support the project.
7. Open to feedback
We build OptimaPDF with our users in mind. Every opinion, bug report, or feature suggestion is valuable to us. You can contact us through the support page.