DICOMKIT LICENSE AGREEMENT

Copyright (c) 2026 PrologicSign Technology. All rights reserved.

This license ("License") is an agreement between you (an individual or a legal entity, "Licensee") and PrologicSign
Technology ("Licensor") for the DicomKit software libraries (including DicomKit, DicomKit.Imaging,
DicomKit.Web and DicomKit.Web.AspNetCore), including their compiled assemblies, symbol files, documentation
and samples, as distributed by Licensor (together, the "Software"). By installing, copying, referencing or otherwise
using the Software, Licensee accepts this License. If Licensee does not accept it, Licensee must not use the
Software.

1. DEFINITIONS

1.1 "License Key" means a short activation key, a signed license token or a license file issued by Licensor, which
    identifies the licensed tier (for example Developer, Pro or Enterprise), the Licensee, the term and the number of
    machines it may be activated on.

1.2 "Development Use" means installing and using the Software to evaluate, develop, build, debug and test software,
    without using it in Production.

1.3 "Production" means use of the Software in, or in support of, any product, service, device or internal system
    that is used for real work or is made available to customers, patients or other end users, rather than for
    evaluation, development or testing.

1.4 "Licensee Applications" means Licensee's own applications, services, devices or products that use the Software
    through its public API.

1.5 "Developer License" means the free license, evidenced by a Developer License Key obtained from Licensor's
    license portal (https://dicomkit.plogic.dev), described in section 2.

1.6 "Paid License" means a license for a tier and term (for example the yearly Pro or Enterprise plans) purchased
    from Licensor or an authorised reseller and evidenced by a License Key and an order confirmation or invoice
    ("Order").

2. DEVELOPER LICENSE (FREE)

2.1 The Software requires a valid License Key. Licensor provides Developer License Keys free of charge.

2.2 Subject to this License, Licensor grants Licensee a worldwide, royalty-free, non-exclusive, non-transferable
    license to install and use the Software, with a Developer License Key, for Development Use only, on the number of
    machines and for the term stated in the Developer License Key. Licensor may renew a Developer License free of
    charge on request, at its discretion.

2.3 A Developer License does not permit Production use or the distribution of the Software, or of any Licensee
    Application that contains it, to third parties.

2.4 When a Developer License Key expires, the Software continues to run with a reduced set of features (the
    "Community" level described in the Software's documentation). This continued operation remains limited to
    Development Use.

3. PAID LICENSE

3.1 Subject to payment of the applicable fees and to this License, Licensor grants Licensee a non-exclusive,
    non-transferable, non-sublicensable license, for the tier, term and number of machines stated in the Order and
    License Key, to:
    (a) install and use the Software, including in Production;
    (b) incorporate the Software, in unmodified binary form, into Licensee Applications; and
    (c) distribute the Software, in unmodified binary form and solely as an integral part of a Licensee Application,
        to Licensee's own customers and end users, under terms at least as protective of Licensor as this License.

3.2 Subscription term. A Paid License is valid for the subscription term stated in the Order and renews as stated
    there. When a Paid License ends (for example because it is cancelled or not renewed), the Software falls back to
    the Community level and Licensee must stop Production use until it renews or purchases a new Paid License.

3.3 Licensee is responsible for keeping License Keys confidential and for all use of the Software under its License
    Keys. Licensor may revoke a License Key that has been disclosed, shared beyond the scope of the Order, or used in
    breach of this License.

3.4 Licensee must not distribute the Software on its own (other than as obtained from Licensor's official
    distribution channels, such as the DicomKit packages on nuget.org), and must keep this License and Licensor's
    copyright notices with any copy of the Software it distributes.

3.5 The terms of a separate written agreement signed with Licensor, where one exists, take precedence over this
    License for the Licensee that signed it.

4. RESTRICTIONS

Except to the extent applicable law expressly permits it despite this limitation, Licensee must not:

(a) reverse engineer, decompile or disassemble the Software;
(b) modify the Software or create derivative works of the Software itself (building Licensee Applications that use
    the Software through its public API is permitted);
(c) remove, alter or circumvent any copyright, trademark or other proprietary notice, or any license-key,
    activation or other technical measure, in the Software;
(d) use the Software to build a general-purpose DICOM toolkit, library or SDK that competes with the Software; or
(e) represent that the Software, or any Licensee Application, is produced, endorsed or certified by Licensor.

5. OWNERSHIP

The Software is licensed, not sold. Licensor and its licensors retain all right, title and interest in the Software,
including all intellectual property rights. The Software is distributed in binary form only; no source code is
licensed. All rights not expressly granted in this License are reserved.

6. NOT A MEDICAL DEVICE

6.1 The Software is a general-purpose developer library. It is not a medical device, has not been cleared, approved
    or certified by any regulatory authority (such as the U.S. FDA or under the EU Medical Device Regulation), and is
    not intended for diagnosis, treatment, mitigation or prevention of disease.

6.2 The Software must not be used for diagnostic or other clinical purposes unless the Licensee Application that
    contains it has been validated, verified and, where required, cleared, approved or certified by its manufacturer
    under the laws that apply to it. Licensee is solely responsible for that validation and regulatory compliance,
    for compliance with privacy and security laws (such as HIPAA and GDPR), and for confirming that any anonymization
    or de-identification performed with the Software meets the requirements of its use.

7. NO WARRANTY

THE SOFTWARE IS PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, LICENSOR DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT AND ACCURACY, AND ANY WARRANTY THAT THE
SOFTWARE WILL BE ERROR-FREE, SECURE OR UNINTERRUPTED. Under this License Licensor has no obligation to provide
support, maintenance or updates.

8. LIMITATION OF LIABILITY

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT WILL LICENSOR OR ITS SUPPLIERS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS,
REVENUE, DATA, GOODWILL OR BUSINESS, OR FOR PERSONAL INJURY OR HARM TO PATIENTS, ARISING OUT OF OR RELATED TO THE
SOFTWARE OR THIS LICENSE, HOWEVER CAUSED AND UNDER ANY THEORY OF LIABILITY, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. WHERE LIABILITY CANNOT BE EXCLUDED, LICENSOR'S TOTAL LIABILITY IS LIMITED TO ONE HUNDRED U.S. DOLLARS
(USD 100). Some jurisdictions do not allow these exclusions or limitations, so they apply only to the extent
permitted by law.

9. CHANGES AND FUTURE VERSIONS

Licensor may offer future versions of the Software, or additional products, features or services, under different
terms. A version of the Software that Licensor has already released under this License remains available to
Licensee under this License; a later change of terms does not apply to it retroactively.

10. VERIFICATION

On reasonable written request, no more than once in any twelve-month period, a Licensee using the Software in
Production must confirm in writing the Paid License under which it does so.

11. TERMINATION

This License terminates automatically if Licensee breaches it. On termination Licensee must stop using and
distributing the Software. Copies of Licensee Applications lawfully distributed to end users before termination may
continue to be used by those end users. Sections 4 to 8 and 12 survive termination.

12. GENERAL

12.1 Licensee must comply with all export control and sanctions laws that apply to the Software.

12.2 This License is governed by the laws of the jurisdiction in which Licensor has its principal place of business,
     without regard to its conflict-of-laws rules. The United Nations Convention on Contracts for the International
     Sale of Goods does not apply.

12.3 If any provision of this License is held unenforceable, it is enforced to the maximum extent permissible and
     the remaining provisions stay in effect. A failure to enforce a provision is not a waiver.

12.4 This License, together with any Order, is the entire agreement between the parties about the Software, and
     supersedes any prior license terms under which Licensee received the same version of
     the Software.

Contact: PrologicSign Technology, support@plogic.dev, https://dicomkit.plogic.dev