I have created a few LyX files using 2.3.1 that are identical in their document settings, and yet, when I hit Ctrl + R, some files are processed to completion and throw up a pdf in Acrobat Reader DC, while others are processed to completion and do not appear in Acrobat. When a pdf file is not generated, I get the following messages at the end:

22:16:29.114: output file: C:/Users/UserName/AppData/Local/Temp/lyx_tmpdir.ljKjwYrYaULg/lyx_tmpbuf2/FileName.tex 22:16:29.115: 22:16:29.161: pdfview "FileName.pdf" 22:16:29.163: Successful preview of format: PDF (pdflatex)

I can if I wish, to to File > Export > Export As ... and save a pdf file, but I would prefer that it come up automatically in Acrobat. Has anyone experienced this problem? If so, what is the solution?

Thanks in advance

Thomas Philips

  • you have masked your username thus guess FileName.pdf is not exact there are several possibilities based on filename with spaces punctuation utf-8 characters accents etc so watch what filenames you are having the issue with secondly acrobat notoriously locks you out of a second run since the first.pdf is still open many TeX editors other than lyx run a close file before open is there a similar choice buried in your lyx configuration I don't see any acrobat related settings in Preferences Output general pdf command just those for sumatraPDF Okular Evince e.g. those that support reopening files – user170109 Mar 7 at 23:02
  • Actually found acrobat is treated as a special case and they use the pdfclose/open tools so if setting is auto its not using acrobat script but if its acrobat then it must be pdfview not auto 1) Open LyX/Tools/Preferences.../File Handling/File Formats 2) Change Format to "PDF (pdflatex)" 3) Check or Change "Viewer/Custom" to "pdfview" this was an on/off problem for various viewer combinations as logged under lyx.org/trac/ticket/9961 – user170109 Mar 7 at 23:37

Have you checked if Acrobat is your default pdf viewer; if not, make that. Reopen Lyx and under Tool bar, see Preferences then Path and then PATH Prefix. Change the path of Ghostscript to Acrobat path. Apply and then Save

  • Good point - I do indeed have the folder containing AcroRd32.exe in my path prefix. The weird thing is that it works for some files but not for others. – Thomas Philips Mar 7 at 14:00

Bingo! KJO's answer has solved my problem. My username is trivial (only letters no spaces), so that wasn't it. The answer lay in Tools>Preferences>File Handling>File Formats.

The default format was BibTex (I have no idea why) so I changed it to PDF(pdflatex) and then chose AcroRd32 as my Viewer, hit Save and it now works like a charm. Interestingly, if I choose pdfview as the Viewer, both the Save and Apply buttons are greyed out.

Thanks a mill!

Thomas Philips

  • Glad its sorted give yourself an accepted answer – user170109 Mar 8 at 1:48

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