General Terms and Conditions
Please note: This English version is provided for information only. The contract language is German, and only the German version of this document is legally binding.
as of 15 October 2026
§ 1 Scope, provider
(1) These General Terms and Conditions (GTC) apply to all contracts you conclude with us via the website jdms.gk-medien.com.
(2) The provider and contracting party is GK Medien, Stefan Güth, Starenweg 7, 33803 Steinhagen, Germany, phone: +49 (0) 5204 - 9276288, email:
(3) A consumer is any natural person who concludes a legal transaction for purposes that are predominantly outside their trade, business or profession (§ 13 German Civil Code, BGB). A trader is a natural or legal person or a partnership with legal capacity who, when concluding a legal transaction, acts in the exercise of their trade, business or profession (§ 14 BGB).
(4) Deviating terms of the customer do not apply unless we expressly agree to them.
§ 2 Subject of the contract
(1) J!DMS is an extension for the content management system Joomla for managing receipts and documents. J!DMS is free software licensed under the GNU General Public License, version 2 or later (GPL). The rights the GPL grants you to the software are not restricted by these GTC.
(2) We provide J!DMS Free as a free download. The free version manages up to 20 documents. There is no entitlement to provision, updates or support for the free version.
(3) The subject of the paid contract "J!DMS Pro" is the provision of the Pro version and a personal download key with which you can download new versions (updates) of J!DMS Pro via the Joomla update function or the customer area for the agreed term (licence). The Pro version removes the limit of 20 documents.
(4) The licence applies to one domain. You set the domain in the customer area, or it is set the first time an update is downloaded. You can change the domain in the customer area; the licence applies to only one domain at a time.
(5) The scope of functions is based on the description on our website at the time the contract is concluded.
§ 3 Customer account and conclusion of the contract
(1) You need a customer account to buy J!DMS Pro. The information you provide when registering must be complete and correct. Keep your login details secret.
(2) The presentation of J!DMS Pro on our website is not a binding offer but an invitation to place an order.
(3) The ordering process works as follows:
- You log in to the customer area and create a licence there.
- You confirm that you have read these GTC and the cancellation policy and accept the GTC, and you consent to the immediate start of performance of the contract (see § 7).
- You click "Buy now" and complete the payment with PayPal. Until you complete the payment with PayPal you can cancel the process at any time; you can correct entries (for example the domain) beforehand in the customer area.
(4) By completing the payment you submit a binding offer. The contract is concluded when we activate the licence; this happens immediately after receipt of payment. You then receive a contract confirmation by email.
(5) The contract language is German. We store the text of the contract. We send you the contract confirmation with the contract details, these GTC and the cancellation policy by email. You can access the current GTC at any time at https://jdms.gk-medien.com/agb.
§ 4 Prices and payment
(1) The prices at the time of the order, as shown on our website and in the customer area, apply. All prices are final prices including statutory VAT. There are no shipping costs.
(2) Payment is made as a one-time payment via PayPal. The amount is due immediately upon ordering.
(3) You receive the invoice by email.
§ 5 Term, renewal
(1) The licence runs for twelve months from activation. It does not renew automatically; there are no recurring payments.
(2) You can renew the licence in the customer area by making another payment. If a licence that is still running is renewed, the new term follows on from the previous one.
(3) After the term has expired you can continue to use the version already installed. Updates and downloads of the Pro version are then no longer possible until the licence is renewed. Your statutory rights, in particular under § 7 and § 8, remain unaffected.
§ 6 Customer obligations, system requirements
(1) J!DMS requires Joomla 6, PHP 8.3 or later and a MySQL or MariaDB database. You are responsible for operating the website on which J!DMS is installed.
(2) J!DMS stores documents in the database of your website. You are responsible for making regular backups of your website and your database, especially before every update.
(3) You may not pass the download key on to third parties or use it for any domain other than the licensed one. In the event of a violation we may block the download key after a prior warning; your right to use the software under the GPL remains unaffected.
§ 7 Right of withdrawal
(1) Consumers have a statutory right of withdrawal. Details can be found in our cancellation policy. You can also declare the withdrawal online at https://jdms.gk-medien.com/vertrag-widerrufen.
(2) The right of withdrawal expires early if we have begun performing the contract after you have expressly consented to us starting performance before the end of the withdrawal period, you have confirmed your knowledge that you thereby lose your right of withdrawal, and we have provided you with a contract confirmation by email.
§ 8 Rights in case of defects and updates
(1) The statutory rights in case of defects apply. For consumers, in particular the provisions on contracts for digital products (§§ 327 et seq. BGB) apply, including the statutory obligation to provide updates necessary to maintain conformity with the contract.
(2) For traders, the limitation period for claims for defects is one year from provision. This does not apply to claims under § 9 (1).
(3) Please report defects by email to
§ 9 Liability
(1) We are liable without limitation for intent and gross negligence, for injury to life, body or health, under the Product Liability Act and to the extent of any guarantee given.
(2) In the event of a slightly negligent breach of an essential contractual obligation (an obligation whose fulfilment makes the proper performance of the contract possible in the first place and on whose observance you may regularly rely), our liability is limited to the damage typical for the contract and foreseeable at the time of conclusion. Otherwise, liability for slight negligence is excluded.
(3) For the loss of data we are only liable to the extent that would have occurred had you made regular backups appropriate to the risk (§ 6 (2)).
(4) The above limitations also apply in favour of our vicarious agents.
§ 10 Data protection
Information on the processing of your personal data can be found in our privacy policy.
§ 11 Dispute resolution
We are neither willing nor obliged to participate in dispute resolution proceedings before a consumer arbitration board.
§ 12 Final provisions
(1) The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. For consumers, this choice of law only applies insofar as it does not deprive you of the protection of mandatory provisions of the law of the state in which you have your habitual residence.
(2) If you are a merchant, a legal entity under public law or a special fund under public law, the place of jurisdiction for all disputes arising from this contract is our place of business.
(3) Should individual provisions of these GTC be invalid, the validity of the remaining provisions remains unaffected.
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