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CADSECTION

Policies

End User Licence Agreement

Version 2026-10-28 · in force from 28 October 2026

This End User Licence Agreement (the "Agreement") is a legal agreement between you – the person, or the organisation on whose behalf that person acts, who installs or uses the software – and Ramkrishna Barman, an individual software developer, Sajherpar Ghoramara, Cooch Behar, West Bengal – 736165, India ("we", "us", "our").

It covers CADSECTION Studio, the CADSECTION plug-in for AutoCAD, their installers, updates, templates, libraries, documentation and the online services they use (sign-in, licences, updates and the AI Copilot) – together "CADSECTION" or the "Software".

By clicking "I accept" in the installer, ticking the box when you create an account, or installing, copying or using CADSECTION, you agree to this Agreement. If you do not agree, do not install or use CADSECTION. If you accept on behalf of an organisation, you confirm that you are authorised to bind it, and "you" includes it.

This Agreement is an electronic record under the Information Technology Act, 2000 and needs no physical or digital signature. We keep a record of your acceptance (the version, the date and time, your internet address and the program used) as evidence of it. It is read together with our Terms and Conditions (accounts, prices, payments and renewals), Privacy Policy and Cancellation and Refund Policy. For the use of the Software, this Agreement applies; for buying and paying, the Terms and Conditions apply.

1. Definitions

  • Account: your CADSECTION account, opened with your name, e-mail address and mobile number.
  • Licence: the right to use the Software granted in section 2, for a free trial or a paid plan, on one PC.
  • Lifetime: for the Standard plan, a period of 15 years from the day of purchase, paid once.
  • PC: one computer, recognised by the Software through the five hardware identifiers described in section 5.
  • Your Data: the survey data, projects, templates, settings and other material you put into the Software.
  • Output: the drawings, sheets, PDF and DXF files, reports, quantities and other results the Software produces from Your Data.
  • AI Features: the AI Copilot and other functions that send a request to an artificial-intelligence service.

2. The licence we grant you

Subject to this Agreement and, for a paid plan, to payment, we grant you a non-exclusive, non-transferable, non-sublicensable, limited licence to install and use the Software in machine-readable form on one PC per Licence, for the period of your trial or paid plan, for your own professional or internal business purposes. You may keep one copy of the installer for back-up. Rights not expressly granted are reserved by us.

3. Ownership

The Software is licensed, not sold. The Software and all copies, including its code, design, screens, templates, libraries, text and documentation, and all intellectual property rights in them (including copyright under the Copyright Act, 1957, and trade secrets), belong to us or our licensors. This Agreement gives you no right to use the name CADSECTION or its logo, except to refer to the Software. If you send us suggestions or feedback, we may use them freely without any obligation to you.

4. What you may not do

Except as this Agreement expressly allows, or to the extent the law expressly permits despite this limitation, you must not, and must not allow anyone else to:

  • copy the Software (other than installing it under a Licence and one back-up of the installer), or use it on more PCs than you have Licences;
  • sell, resell, rent, lease, lend, share, sublicense or transfer the Software or a Licence, or use it to provide a service bureau, hosting or time-sharing service to others;
  • share your Account or sign-in codes, or let several people use one Licence by moving it between PCs beyond the moves your plan allows;
  • reverse-engineer, decompile, disassemble or modify the Software, or create works derived from it;
  • remove, disable, bypass or interfere with the sign-in, licence checks, activation, hardware identification, trial limits, the hidden licence mark in Output, AI credit and usage limits, or any other technical protection, or use a "crack", key generator or patched copy;
  • remove or change any copyright, trademark or other notice in the Software or Output;
  • use the Software or AI Features to build or train a competing product, or access them by automated means other than as the Software itself does;
  • use the Software in breach of any law, or for any unlawful, fraudulent or harmful purpose.

Any of these is a material breach of this Agreement and an infringement of our rights.

5. Account, activation and licence checks

  • CADSECTION works only when you are signed in to your Account and a trial or paid plan is running on that PC. Without them it does not open.
  • To keep a Licence to one PC, the Software reads five hardware identifiers of the PC – the motherboard, the Windows installation, the processor, the system disk and the network card – and sends only one-way hashes of them to our server. When three or more of them are different or cannot be read, the Software treats the computer as another PC and stops until the Licence is moved to it. The number of moves in a year depends on your plan.
  • The Software checks the Licence with our server from time to time. A paid plan keeps working for up to 15 days without internet, a trial for 1 day; after that it needs to connect once.
  • You agree to these checks. They are needed to provide the Software and to prevent misuse. Data is handled as set out in the Privacy Policy.

6. The free trial

The trial lasts 14 days, is free and has every feature. Output made in the trial carries a TRIAL mark. There is one trial per person and per PC, and trials do not run in virtual machines. We may change or end the trial offer at any time. The trial is provided "as is", without any warranty, and to the maximum extent the law allows we have no liability for it.

7. Plans, fees and the end of a plan

Plans, prices, AI credits, renewals and refunds are described on the pricing page, in the Terms and Conditions and in the Cancellation and Refund Policy. A Licence lasts for the period paid for; a Lifetime plan (Standard) lasts 15 years from the day of purchase. When a trial or plan ends and is not renewed, CADSECTION stops opening; Your Data and Output stay on your PC and remain yours.

8. Updates and support

We may provide updates, fixes and new versions. CADSECTION checks for updates and installs them after you agree; every update is digitally signed and checked before it is installed. Updates are part of the Software and are covered by this Agreement. We may change, add or remove features, and may stop supporting older versions or versions of Windows or AutoCAD that their makers no longer support. Support is provided during a paid plan as described in the Terms and Conditions.

9. AI Features

  • AI Features are optional. When you use them, the text, data and files of your request are sent through our server to our AI provider (Anthropic, PBC, United States) to produce the answer, as described in the Privacy Policy.
  • AI answers can be wrong, incomplete or out of date. The AI Copilot shows its changes as a proposal to apply (unless you choose to let it apply them directly); every change can be undone, and you must check every result before you rely on it.
  • You are responsible for what you send: you must have the right to send it, and it must not be unlawful or infringe anyone's rights.
  • AI Features use AI credits and have daily limits. We may limit, queue or suspend them to protect the service or in case of misuse.
  • AI apps (Pro Max, Govt / Railways licences and the own-AI-key add-on). You may let AI apps of other companies that you use – for example Claude Desktop, ChatGPT, Cursor, VS Code or Codex – work with the Software through its connection for AI apps. Those apps are not part of the Software: you use them under their makers' terms, pay for them yourself, and their makers process what the app reads from your project. You choose which apps you connect, and you can turn the connection off at any time. An app's changes take effect when the app runs them: check them and use Undo where needed. We are not responsible for what an AI app does, for its answers or for its availability.
  • When you turn on the internet link (for AI apps that only reach internet addresses, such as ChatGPT or Claude on the web), the app's requests and the Software's answers – which can include project data – pass through our server only to be handed on, and are deleted as soon as the app has the answer. The link's address works like a password: keep it private, and make a new address in the Software if it may have become known to someone else. You are responsible for what happens through an address you shared.

10. Your Data and Output

  • Your Data and Output are yours. We claim no ownership of them. They are stored on your PC, not on our server, except what you choose to send to the AI Features or to us for support.
  • You give us a limited permission to process what you do send, only to provide the AI Features and support.
  • You are responsible for keeping back-ups of Your Data and Output.
  • Output contains a small hidden mark with the licence number and date, so that a copy made with a misused Licence can be traced. You must not remove or alter it.

11. Privacy and consent

The Privacy Policy explains the personal data we process – account details, hardware hashes, licence checks, AI usage records, payments and records of your acceptance of this Agreement – why, for how long, and your rights. By accepting this Agreement you give your consent under the Digital Personal Data Protection Act, 2023 for the purposes described there. You may withdraw consent at any time by closing your Account; because the Software needs an Account to run, it then stops working.

12. Third-party software and trademarks

  • The Software includes components made by others, such as the Microsoft .NET runtime, which are provided under their own licences. Those licences, listed in the file THIRD-PARTY-NOTICES.txt in the program folder, apply to those components and take precedence for them.
  • The CADSECTION plug-in works inside AutoCAD®, which you must license separately from Autodesk, Inc. AutoCAD is a registered trademark of Autodesk, Inc. Windows is a trademark of Microsoft Corporation. Other names are the trademarks of their owners and are used only to describe compatibility.
  • ESurvey and ESurvey CADD are trademarks of their owner. CADSECTION can open project files saved by other survey software (for example .ESP files) so that you can keep using your own survey data. It does this only for compatibility: it contains no program code or files of that software and does not need it installed, and the names of other software are used only to say which files CADSECTION can open.
  • You are responsible for having the right to use the files you open in CADSECTION, and for following the licence terms of the software that made them.
  • CADSECTION is an independent product. It is not made, endorsed or sponsored by, or affiliated with, Autodesk, Microsoft, the maker of ESurvey CADD or the maker of any other software it can exchange files with.

13. Engineering responsibility

CADSECTION is a tool that helps a qualified person prepare drawings, levels and quantities. It does not replace professional judgement. You remain responsible for checking every drawing, level, design, quantity and report against the field data, the applicable codes, specifications and instructions (for example those of RDSO, IRC, MoRTH or your client) before it is used for construction, measurement, billing, tenders or any other purpose. Standard templates, components and references are provided for convenience and may not reflect the latest edition of a standard. We are not responsible for decisions made on the basis of Output.

14. Warranty

We provide the Software with reasonable skill and care. If, during a paid plan, the Software does not work materially as described on our website, tell us: we will try to correct it, and if we cannot do so within a reasonable time you may end the plan and receive a refund of the unused part of the period paid for. This is your only remedy for such a fault.

Apart from that, and to the maximum extent the law allows, the Software, the trial and the AI Features are provided "as is" and "as available", without any other warranty or condition, express or implied, including of merchantability, fitness for a particular purpose, accuracy, non-infringement or uninterrupted, error-free operation. Nothing in this Agreement takes away rights you have as a consumer under the Consumer Protection Act, 2019 that cannot be excluded.

15. Limitation of liability

To the maximum extent the law allows:

  • we are not liable for any indirect, incidental, special, consequential or punitive loss or damage, or for loss of profit, revenue, business, contracts, goodwill or data, the cost of re-surveying, re-designing or re-work, delays, or penalties or liquidated damages under your contracts with others – however caused, and even if we were told it might happen;
  • our total liability for all claims connected with the Software or this Agreement is limited to the amount you paid us for the Software in the 12 months before the event giving rise to the claim, or ₹1,000 if you paid nothing.

These limits do not apply to liability for fraud or any liability that cannot be limited under Indian law. The prices of CADSECTION reflect this allocation of risk.

16. Your indemnity

You will indemnify us against any claim, loss, damage, cost or expense (including reasonable legal fees) brought by a third party and arising from your breach of this Agreement, your misuse of the Software, Your Data or the material you send to the AI Features, or Output that you use or give to others. We will tell you promptly of such a claim and co-operate reasonably with you.

17. Suspension and termination

  • You may stop using the Software at any time.
  • We may suspend or end your Licence or Account, with notice by e-mail where we reasonably can, if you breach this Agreement – for example by sharing or cracking a Licence, not paying, fraud, or misuse of the AI Features. A material breach ends your Licence automatically.
  • When a Licence ends for any reason, you must stop using the Software under it and, if it is not renewed or replaced, uninstall it. Fees already paid are refunded only as set out in the Cancellation and Refund Policy or as required by law.
  • Sections 3, 4, 10, 12 to 16 and 18 to 22 continue after this Agreement ends.

18. Compliance with laws

You will comply with all laws that apply to your use of the Software, including export control and sanctions laws, and will not use or export the Software where that is prohibited.

19. Transfer of this Agreement

You may not assign or transfer this Agreement or any Licence without our written consent. We may assign or transfer this Agreement, our rights and our obligations – for example to a company we set up to carry on the CADSECTION business, or to a successor – by notice on our website or by e-mail. Your rights under it continue unchanged.

20. Changes to this Agreement

We may change this Agreement. The version and date at the top show the one in force. For an important change we tell you in advance, and the Software or the website asks you to accept the new version. If you do not accept it, you may stop using the Software and ask for a refund of the unused part of a paid period.

21. Law and disputes

This Agreement is governed by the laws of India. Please write to us first; we will try to resolve any dispute amicably within 30 days. Subject to that, the courts at Cooch Behar, West Bengal have exclusive jurisdiction, without affecting your right as a consumer to approach a Consumer Commission under the Consumer Protection Act, 2019.

22. General

  • This Agreement, with the documents named at the start, is the entire agreement between you and us about the Software and replaces anything said or written before.
  • If any part of it is held invalid or unenforceable, the rest continues to apply, and that part applies to the extent allowed.
  • A delay or failure to enforce a right is not a waiver of it.
  • We are not responsible for a failure or delay caused by events beyond our reasonable control, such as power or internet failures, natural disasters, epidemics or acts of government.
  • Notices to you are sent to the e-mail address of your Account; notices to us go to the e-mail address below.
  • Nothing in this Agreement creates a partnership, agency or employment between you and us. The English version is the one that applies.

23. Contact and grievance officer

Ramkrishna Barman (grievance officer)
Sajherpar Ghoramara
Cooch Behar, West Bengal – 736165
India
E-mail cadsectionstudio@gmail.com, phone +91 89062 40692.
We acknowledge a complaint within 48 hours and resolve it within 30 days.