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I can't figure out the difference between view (cmd+R) and update (cmd+shift+R) pdf. Searched everywhere, thanks.

  • If you are going to cross-post, please link to all of your posts. One of your other posts is located here: latex-community.org/forum/… Can you post there an link back to this one please? – scottkosty Oct 22 '14 at 7:22
  • For reasons why, see latex-community.org/home/latex-community/94-etiquette/…. You just wasted the time of Torbjørn T. and StarValkyrie (although perhaps they don't see it that way). I know that sometimes it's not obvious why you should do that so I hope that the above link helps explain how people want to help you, but don't want to duplicate the efforts of others. – scottkosty Oct 22 '14 at 7:24
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View generates the PDF, and opens it. If the PDF is already open a new instance of the PDF reader will be created -- this is at least what happens in Windows and (if I remember correctly) Linux. Use this if you haven't got the PDF open already. Update generates the PDF, but it does not open the PDF reader. Use this if the PDF is already open.

  • oh man this is serious over-customization! – andy Oct 21 '14 at 14:40
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    @andy Well, if I were using LyX I wouldn't want a new instance of Sumatra (or whatever PDF viewer I used) to open every time I recompiled the document, so I understand the distinction. Anyways, if you feel this answered your question, you could consider accepting my answer by clicking the checkmark to the left of it, that marks the question as solved. And welcome to TeX.SX by the way! – Torbjørn T. Oct 21 '14 at 14:51
  • @andy note that in some cases you might not see a difference if you have a PDF open. For example, my PDF viewer (Evince) seems to recognize that I am opening the same file that is already open. It thus does not create a new instance and just updates that file. However, this depends on the behavior of the individual PDF viewer. – scottkosty Oct 21 '14 at 20:00

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