Sage-Tips

Is GPL and AGPL compatible?

Please note that the GNU AGPL is not compatible with GPLv2. It is also technically not compatible with GPLv3 in a strict sense: you cannot take code released under the GNU AGPL and convey or modify it however you like under the terms of GPLv3, or vice versa.

Why AGPL license is bad?

It explicitly prohibits corporations from parasitically competing with an open source project. They won’t be able to take the code, make changes to it and sell it as a competing product without contributing those changes back to the original project.

Can LGPL be used in commercial software?

You can use and distribute LGPL libraries on your website and use them in combination with commercial code. The only big restriction is that you must keep the library open source, including any modifications you make to it, and allow your users to obtain the source, licence and copyright information for the library.

Can you use AGPL with closed source applications?

Yes, and nearly. You must ensure the modified software does not provide any public network interaction to avoid this term. That’s broader than “interface”. OK thanks, from what you said it sounds like it should be OK.

Is Ghostscript free for commercial use?

Artifex has different licensing approaches for our different products. Ghostscript and MuPDF are available under both Open Source – AGPL and commercial license agreements, while SmartOffice, ScanSkew, and our standalone modules are available under commercial license only.

What is the difference between AGPL and LGPL?

LGPL: If you publish the software, you have to do the same for its source code. GPL: If you publish the software, you have to do the same for the source code of it and any connecting software. AGPL: If your software gives service online, you have to publish the source code of it and any connecting software.

Can I use an AGPL library in a GPL program?

In fact, you can even use an AGPL library in a GPL program, as long as you make the AGPL code available whenever its conditions are met (e.g. from behind a GPL-licensed content management system).

What is the difference between GPL and copyleft?

GPL, also known as copyleft, grants permission to reuse or modify the source code to make derivative works, but if you distribute your program to others, it requires you to license your derivative work under the GPL too. E.g. you have to make the source code available to your users and allow further modification and redistribution.

Can other developers use the LGPL code?

Other developers can borrow and modify the code and re-distribute it as part of their own project, provided that the portion used under the LGPL, including any modifications, is re-licensed under the LGPL. Other portions of the project are permitted have other licenses.