Can I post on Arxiv a final paper published on PLOS ONE? Can I post on Arxiv a final paper published on PLOS ONE? I would like to put on Arxiv the final edited paper, replacing the old pre-print. Can I do that?
I am wondering if this violates any rule of either PLOS or Arxiv, or is OK.

On the PLOS website it says:


  All content published by PLOS is Open Access and distributed under a Creative Commons Attribution (CC BY) license. You should credit the appropriate PLOS journal in your coverage and provide a link to the freely available article in any online coverage.


I also saw other answers to this question, but nothing specific for PLOS: Can I submit published articles to arXiv as well?

Which license should I choose?
Yes, you can.

Read the CCBY license: you are allowed to share (copy and redistribute the material in any medium or format) and adapt (remix, transform, and build upon the material
for any purpose, even commercially) the material as long as you attribute (you must give appropriate credit, provide a link to the license, and indicate if changes were made). So you can put the paper on arXiv, as long as you attribute.