Praise be to Allaah.
The Mushaf al-Tajweed mentioned in the question is something
into which great effort has been put, and like any other human action it is
not free of mistakes or errors. Some specialists have pointed out these
mistakes.
What we are talking about here is not the actual words of
Allaah which are written in the Mushaf; rather we are talking about the
invention of a way to present them. No doubt the people who produced this
have put a lot of time, effort and money into it, and the method they have
invented is something that is protected in sharee’ah, which gives them the
right to sell it, hire it out and prevent anyone from using it without their
permission. This is one of the intangible rights concerning which fatwas
have been issued by specialists in our times, ruling that this right is to
be protected.
See the answers to questions number
18614,
21899 and
454.
What we have mentioned here about the ban on transgressing
against the rights of others without their permission is the basic ruling.
But there may be some cases in which it is permissible for you to use the
printed Mushaf without the permission of the publishers. That is in the case
where the format in which you want to benefit from the Mushaf has not been
produced by the producers of the Mushaf that you are asking about. The
coloured tajweed Mushaf (Mushaf al-Tajweed al-Mulawwan) mentioned in
the question is that which is printed on paper and gathered between two
covers to be read from. If the publisher does not have software for that
Mushaf which can be installed on mobile phones, then it seems that it is
permissible for you to make software which will enable mobile phone owners
to benefit from it, and that will not affect the producers of the Mushaf,
because of the different ways in which they are used, especially if the
software is free.
See also the answer to question number
95173.
And Allaah knows best.