can i install for free the sofware DIA on my computer
Yes. Dia is free software licensed under GPLv2 [1]. And one property of free software is that anyone is allowed to install and run the program for any purpose, in any environment. Regards, Thimo Langbehn [1] https://wiki.gnome.org/Dia/Faq#Under_what_license_is_Dia_released.3F
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