https://bugs.documentfoundation.org/show_bug.cgi?id=149637
--- Comment #7 from Pablo <p.ballestase...@gmail.com> --- Hello Rafael, first of all thank you very much for your help. I opened the file in a different pdf reader and, as you said, it looks like everything is fine. The problem seems to be in the default program that macOs has to open pdf (called preview). I don't know why it reads the pdf without transparency. It just happens in pdfs exported from libreoffice. I tried in a pdf from adobe illustrator and it shows transparency correctly. Is it possible that libreoffice writer exports pdfs in a special way that makes this happen? Or it may be the preview software from Apple? It wouldn't be the first time Apple do things a little bit different and as a result they cause havoc among users. Thanks to all in advance -- You are receiving this mail because: You are the assignee for the bug.