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I have two questions:

  1. Is it legal to redistribute LaTeX in a commercial software?
  2. if is, how do I make a minimal and portable distribution of plain latex and a few packages?

Note: I wish to use LaTeX by IPC in my program to print some numbers on sale factors. I would like to do this via LaTeX + XeLaTeX (if possible).

Thanks in advance

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As for the second part of your question, you might take a look at tex.stackexchange.com/questions/13649/… – ipavlic Jul 7 '11 at 8:01
Doesn't Scientific Workplace redistribute latex? They are a commercial software which requires latex, I am just not sure it comes bundled with it or whether you have to download separately, but I believe it all comes together. – Vivi Jul 7 '11 at 9:03
Get a lawyer to interpret the LPPL license. – You Jul 7 '11 at 9:35
OK, I read license file... seems to be possible to redistribute. But Of course will ask a lawyer. I'll try and probably ask again about distribution. Thanks – sorush-r Jul 7 '11 at 10:46

To not let this question unanswered, here's a CW answer, feel free to edit.

  1. The legal part is completely answered by The LaTeX Project Public License.

  2. See ipavlic's link: Portable minimal distribution

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