Hello, I was wondering this is allowed: -taking an open source software, do some small changes like name and logo. -Selling this software Most open source softwares are under a GPL license. Anybody an idea about this ? Thank you
You can sell GPL software for any amount you want. But you can't change the license. Also if someone asks you for the source code you have to provide it to the using the same medium you sold the original software on, so if you sell the a CD you have to be willing to send them a CD with the source code on if they ask. If you make any great changes to the software then anyone who buys it from you can then go on to sell it for any amount they want. Other open source licenses vary, many you must provide the source code and most allow people to modify and sell it on.
You can sell GPL only if you make the modified source code public to all (i.e. give back to the original author(s)). But I'm not sure why you would want to sell open source software in the first place. BSD is the least restrictive which allows you to sell without providing the modified sources.
I don't believe you have to provide the source code back to the original authors, only if they buy your modified version. You only have to give the source code to people who have your software.
Yup, I think you have to contact with the author of the software if you wish to do like that. Sometimes he may allow you. Asking wont cost you anything
By modify in the GPL, it means improve not just change the logo and software name. Trust me, when somebody finds out and they will, you will be ruined by angry customers who you ripped off and if it hits tech websites - they will rip you to shreds for your dishonest business.
Your only allowed to pay for distribution of GPL... Such as costs for printing CDs, Mailing, etc.. Thats how the linux distributors get around it, they are 'distributing' to stores. But you can download everything they did for free off their websites... BSD on the other hand, you can sell it all day you want however you want.