8

My ultimate goal is to get chemfig working with AnkiSRS. It only accepts .png as latex output, so I need to compile with pdflatex and then convert the file from within the latex environment. I am using Imagemagick and standalone for that.

If I compile following code

\documentclass[convert={convertexe={convert}}]{standalone}
\special{papersize=3in,5in}
\usepackage[utf8]{inputenc}
\usepackage{chemfig}
\pagestyle{empty}
\begin{document}
\chemfig{A=B}
\end{document}

from command line using pdflatex test -shell-escape, compiler produces following error (see attached files for more details):

 (test.aux
! Undefined control sequence.
l.2 \pgfsyspdfmark
               {pgfid1}{245759}{1}
? 

! LaTeX Error: Missing \begin{document}.

What seems to be the problem?

Even though the output .png is actually created and seems right, the AnkiSRS compiler stops on the error so I need to figure it out.


I am running on Win7 64-bit, compiling from location with no whitespace in path. No auxiliary latex files are present.

Side note: I know that convert is Windows system command, but when I rename the Imagemagick's convert program to imgconvert, it throws error saying something about convert being obsolete, and doesn't work (even though it is in system path).


test.aux:

\relax 
\pgfsyspdfmark {pgfid1}{245759}{1}
\gdef \sa@multi@numpages {0}

test.log:

This is pdfTeX, Version 3.14159265-2.6-1.40.17 (MiKTeX 2.9 64-bit) (preloaded format=pdflatex 2016.7.14)  18 JUL 2016 22:25
entering extended mode
**./test.tex
(test.tex
LaTeX2e <2016/03/31> patch level 2
Babel <3.9r> and hyphenation patterns for 75 language(s) loaded.
("C:\Program Files\MiKTeX 2.9\tex\latex\standalone\standalone.cls"
Document Class: standalone 2015/07/15 v1.2 Class to compile TeX sub-files stand
alone
("C:\Program Files\MiKTeX 2.9\tex\generic\oberdiek\ifluatex.sty"
Package: ifluatex 2016/05/16 v1.4 Provides the ifluatex switch (HO)
Package ifluatex Info: LuaTeX not detected.
)
("C:\Program Files\MiKTeX 2.9\tex\generic\oberdiek\ifpdf.sty"
Package: ifpdf 2016/05/14 v3.1 Provides the ifpdf switch
)
("C:\Program Files\MiKTeX 2.9\tex\generic\ifxetex\ifxetex.sty"
Package: ifxetex 2010/09/12 v0.6 Provides ifxetex conditional
)
("C:\Program Files\MiKTeX 2.9\tex\latex\xkeyval\xkeyval.sty"
Package: xkeyval 2014/12/03 v2.7a package option processing (HA)

("C:\Program Files\MiKTeX 2.9\tex\generic\xkeyval\xkeyval.tex"
("C:\Program Files\MiKTeX 2.9\tex\generic\xkeyval\xkvutils.tex"
\XKV@toks=\toks14
\XKV@tempa@toks=\toks15

("C:\Program Files\MiKTeX 2.9\tex\generic\xkeyval\keyval.tex"))
\XKV@depth=\count79
File: xkeyval.tex 2014/12/03 v2.7a key=value parser (HA)
))
\sa@internal=\count80
\c@sapage=\count81

("C:\Program Files\MiKTeX 2.9\tex\latex\standalone\standalone.cfg"
File: standalone.cfg 2015/07/15 v1.2 Default configuration file for 'standalone
' class
)
("C:\Program Files\MiKTeX 2.9\tex\latex\base\article.cls"
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
("C:\Program Files\MiKTeX 2.9\tex\latex\base\size10.clo"
File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
)
\c@part=\count82
\c@section=\count83
\c@subsection=\count84
\c@subsubsection=\count85
\c@paragraph=\count86
\c@subparagraph=\count87
\c@figure=\count88
\c@table=\count89
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
)
\sa@box=\box26
runsystem(pdflatex  -shell-escape  -jobname "test" "\expandafter\def\csname sa@
internal@run\endcsname{1}\input{test}")...executed.

 (test.aux
! Undefined control sequence.
l.2 \pgfsyspdfmark
                   {pgfid1}{245759}{1}
? 

! LaTeX Error: Missing \begin{document}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.2 \pgfsyspdfmark {p
                     gfid1}{245759}{1}
? H
You're in trouble here.  Try typing  <return>  to proceed.
If that doesn't work, type  X <return>  to quit.
? 
)
runsystem(convert -density 300 test.pdf  -quality 90 test.png)...executed.


Class standalone:
Output written on test.png.
[1

{C:/ProgramData/MiKTeX/2.9/pdftex/config/pdftex.map}] ) ) 
Here is how much of TeX's memory you used:
 696 strings out of 493334
 10696 string characters out of 3139246
 62614 words of memory out of 3000000
 4282 multiletter control sequences out of 15000+200000
 3640 words of font info for 14 fonts, out of 3000000 for 9000
 1141 hyphenation exceptions out of 8191
 34i,4n,56p,206b,106s stack positions out of 5000i,500n,10000p,200000b,50000s
<C:/Program Files/MiKT
eX 2.9/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on test.pdf (1 page, 12628 bytes).
PDF statistics:
 10 PDF objects out of 1000 (max. 8388607)
 0 named destinations out of 1000 (max. 500000)
 1 words of extra memory for PDF output out of 10000 (max. 10000000)

  defining Unicode char U+00CF (decimal 207)
...omitting a few lines...
   defining Unicode char U+2423 (decimal 9251)
)
Now handling font encoding OT1 ...
... processing UTF-8 mapping file for font encoding OT1

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File: ot1enc.dfu 2016/02/28 v1.1s UTF-8 support for inputenc
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   defining Unicode char U+0142 (decimal 322)
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   defining Unicode char U+0174 (decimal 372)
   defining Unicode char U+0175 (decimal 373)
   defining Unicode char U+0176 (decimal 374)
   defining Unicode char U+0177 (decimal 375)
   defining Unicode char U+0218 (decimal 536)
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   defining Unicode char U+2013 (decimal 8211)
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   defining Unicode char U+2018 (decimal 8216)
   defining Unicode char U+2019 (decimal 8217)
   defining Unicode char U+201C (decimal 8220)
   defining Unicode char U+201D (decimal 8221)
)
Now handling font encoding OMS ...
... processing UTF-8 mapping file for font encoding OMS

("C:\Program Files\MiKTeX 2.9\tex\latex\base\omsenc.dfu"
File: omsenc.dfu 2016/02/28 v1.1s UTF-8 support for inputenc
   defining Unicode char U+00A7 (decimal 167)
   defining Unicode char U+00B6 (decimal 182)
   defining Unicode char U+00B7 (decimal 183)
   defining Unicode char U+2020 (decimal 8224)
   defining Unicode char U+2021 (decimal 8225)
   defining Unicode char U+2022 (decimal 8226)
)
Now handling font encoding OMX ...
... no UTF-8 mapping file for font encoding OMX
Now handling font encoding U ...
... no UTF-8 mapping file for font encoding U
   defining Unicode char U+00A9 (decimal 169)
   defining Unicode char U+00AA (decimal 170)
   defining Unicode char U+00AE (decimal 174)
   defining Unicode char U+00BA (decimal 186)
   defining Unicode char U+02C6 (decimal 710)
   defining Unicode char U+02DC (decimal 732)
   defining Unicode char U+200C (decimal 8204)
   defining Unicode char U+2026 (decimal 8230)
   defining Unicode char U+2122 (decimal 8482)
   defining Unicode char U+2423 (decimal 9251)
))
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ode.tex"
File: pgflibraryarrows.meta.code.tex 2015/05/13 v3.0.1a (rcs-revision 1.13)
\pgfarrowinset=\dimen151
\pgfarrowlength=\dimen152
\pgfarrowwidth=\dimen153
\pgfarrowlinewidth=\dimen154
)
\CF@cnt@atomingroup=\count110
\CF@cnt@groupnumber=\count111
\CF@cnt@atomnumber=\count112
\CF@cnt@cycle=\count113
\CF@dim=\dimen155
\CF@lewis@box=\box38
\CF@box@boxa=\box39
\CF@box@boxb=\box40
\CF@stuff@box=\box41
\CF@unused=\write4
\CF@compound@cnt=\count114
\CF@arrow@size=\dimen156
)
Package: chemfig 2015/12/01 v1.2d Draw molecule with an easy syntax
)
No file test.aux.
\openout1 = `test.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
ABD: EveryShipout initializing macros
("C:\Program Files\MiKTeX 2.9\tex\context\base\supp-pdf.mkii"
[Loading MPS to PDF converter (version 2006.09.02).]
\scratchcounter=\count115
\scratchdimen=\dimen157
\scratchbox=\box42
\nofMPsegments=\count116
\nofMParguments=\count117
\everyMPshowfont=\toks30
\MPscratchCnt=\count118
\MPscratchDim=\dimen158
\MPnumerator=\count119
\makeMPintoPDFobject=\count120
\everyMPtoPDFconversion=\toks31
) ("C:\Program Files\MiKTeX 2.9\tex\generic\oberdiek\pdftexcmds.sty"
Package: pdftexcmds 2016/05/21 v0.22 Utility functions of pdfTeX for LuaTeX (HO
)
Package pdftexcmds Info: LuaTeX not detected.
Package pdftexcmds Info: \pdf@primitive is available.
Package pdftexcmds Info: \pdf@ifprimitive is available.
Package pdftexcmds Info: \pdfdraftmode found.
)
("C:\Program Files\MiKTeX 2.9\tex\latex\oberdiek\epstopdf-base.sty"
Package: epstopdf-base 2016/05/15 v2.6 Base part for package epstopdf

("C:\Program Files\MiKTeX 2.9\tex\latex\oberdiek\grfext.sty"
Package: grfext 2016/05/16 v1.2 Manage graphics extensions (HO)

("C:\Program Files\MiKTeX 2.9\tex\generic\oberdiek\kvdefinekeys.sty"
Package: kvdefinekeys 2016/05/16 v1.4 Define keys (HO)
))
("C:\Program Files\MiKTeX 2.9\tex\latex\oberdiek\kvoptions.sty"
Package: kvoptions 2016/05/16 v3.12 Key value format for package options (HO)

("C:\Program Files\MiKTeX 2.9\tex\generic\oberdiek\kvsetkeys.sty"
Package: kvsetkeys 2016/05/16 v1.17 Key value parser (HO)

("C:\Program Files\MiKTeX 2.9\tex\generic\oberdiek\etexcmds.sty"
Package: etexcmds 2016/05/16 v1.6 Avoid name clashes with e-TeX commands (HO)
Package etexcmds Info: Could not find \expanded.
(etexcmds)             That can mean that you are not using pdfTeX 1.50 or
(etexcmds)             that some package has redefined \expanded.
(etexcmds)             In the latter case, load this package earlier.
)))
Package epstopdf-base Info: Redefining graphics rule for `.eps' on input line 4
38.
Package grfext Info: Graphics extension search list:
(grfext)             [.png,.pdf,.jpg,.mps,.jpeg,.jbig2,.jb2,.PNG,.PDF,.JPG,.JPE
G,.JBIG2,.JB2,.eps]
(grfext)             \AppendGraphicsExtensions on input line 456.
)
LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <7> on input line 7.
LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <5> on input line 7.
 [1


Non-PDF special ignored!{C:/ProgramData/MiKTeX/2.9/pdftex/config/pdftex.map}]
(test.aux)

LaTeX Warning: Label(s) may have changed. Rerun to get cross-references right.

 ) 
Here is how much of TeX's memory you used:
 12963 strings out of 493334
 259388 string characters out of 3139246
 303332 words of memory out of 3000000
 16267 multiletter control sequences out of 15000+200000
 3640 words of font info for 14 fonts, out of 3000000 for 9000
 1141 hyphenation exceptions out of 8191
 63i,9n,85p,478b,602s stack positions out of 5000i,500n,10000p,200000b,50000s
<C:/Program Files/MiKTeX 2.9/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on test.pdf (1 page, 9968 bytes).
PDF statistics:
 13 PDF objects out of 1000 (max. 8388607)
 0 named destinations out of 1000 (max. 500000)
 13 words of extra memory for PDF output out of 10000 (max. 10000000)
5

It's a problem due to how the conversion works. The file is actually compiled twice, but one time essentially without any package and so when the aux file is read in this phase, the command is not defined.

Workaround:

\providecommand{\pgfsyspdfmark}[3]{}

\documentclass[convert={convertexe={convert}}]{standalone}
\usepackage[utf8]{inputenc}
\usepackage{chemfig}
\pagestyle{empty}

\begin{document}

\chemfig{A=B}

\end{document}

I removed the \special that just seems to produce a warning.

| improve this answer | |
  • You're a Wizard! Worked like a charm and even Anki eats it! I knew that the file is compiled twice, but still I don't really understand, what was the problem. Could you explain it to me, please? – PeV Jul 18 '16 at 21:13

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