Digital Rights & Usage Terms — How you may use your purchased notes
This License Policy explains the legal terms and scope under which Physics4U (physics4u.in) grants access to its digital educational products (including Class 11 and 12 Physics PDF notes, derivations, formula cheat-sheets, model papers, and PYQs). By purchasing or downloading any product, you agree to comply with this License Policy.
Every purchase grants a non-exclusive, non-transferable, revocable license for one individual student only. Purchasing a digital product grants access to the material — it does not transfer copyright or ownership of the underlying content.
Permitted uses, prohibited activities, and legal enforcement
Upon verified payment completion, you receive a limited personal license to access and use the purchased digital PDF for your own personal educational preparation:
Use the notes freely for your own self-paced study, revision, derivations practice, and exam preparation.
Download and store a copy on your personal phone, tablet, and computer for offline access without internet.
Print a physical spiral or bind copy strictly for your own desk reading and handwritten margin annotations.
The following activities constitute copyright infringement and license violations:
Do not forward purchased files to classmates, friends, coaching centers, or study circles.
Uploading our files to Telegram channels, WhatsApp groups, Drive, or Dropbox is strictly illegal.
You may not sell, rent, sublicense, or commercially distribute any Physics4U digital product.
Do not edit, remove watermarks, modify branding, or claim original diagrams as your own.
Hosting our PDFs on external websites, forums, torrents, or social media is prohibited.
Coaching institutes and tuition centers cannot distribute these materials without explicit written licensing.
All original written explanations, custom diagrams, handwritten derivations, and pedagogical layouts remain the exclusive intellectual property of Physics4U under the Indian Copyright Act, 1957. Your purchase grants you a license to use, not ownership of, the material.
To protect content integrity, PDF files downloaded from Physics4U may embed subtle digital identifiers, order IDs, and personalized watermarks. These measures allow us to identify and trace unauthorized public leaks directly back to the original source order. Anyone found leaking purchased content will face account termination and legal action.
Any breach of this License Policy immediately terminates your license to use the materials. Physics4U reserves the right to deactivate future download links, blacklist associated user accounts, and pursue statutory damages or civil/criminal proceedings where necessary.
Physics4U reserves the right to update this policy at any time. The current version will always remain published at this URL. If you represent an educational institution seeking commercial classroom permissions or have license questions, please reach out:
| Department | Physics4U Legal & Licensing |
| Platform | Physics4U (physics4u.in) |
| Licensing Email | support@physics4u.in |
| Online Help | Physics4U Contact Page |
| Response Time: 24–48 Business Hours | |
Coaching institutes, schools, aur educators ke liye custom licensing available hai — email karo aur detail le lo.