Find out which packages are used

Question

I have written a LaTeX Document and it compiles fine on my machine, but now I would like to give the sources to someone else. Is there a quick way to list all the packages that have been used for compilation?

Answer 1

Yes. Add \listfiles somewhere in your document preamble. The output should be posted in your .log file. Here's an example from a test document containing 2 packages in the preamble and compiled using TeX Live 2009:

\documentclass{article}
\listfiles
\usepackage{array}% http://ctan.org/pkg/array
\usepackage{hyperref}% http://ctan.org/pkg/hyperref
\begin{document}
test
\end{document}​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

The .log file now includes

 *File List*
 article.cls    2007/10/19 v1.4h Standard LaTeX document class
  size10.clo    2007/10/19 v1.4h Standard LaTeX file (size option)
   array.sty    2008/09/09 v2.4c Tabular extension package (FMi)
hyperref.sty    2010/05/04 v6.81a Hypertext links for LaTeX
 ltxcmds.sty    2010/04/26 v1.7 LaTeX kernel commands for general use (HO)
  keyval.sty    1999/03/16 v1.13 key=value parser (DPC)
kvsetkeys.sty    2010/03/01 v1.9 Key value parser (HO)
infwarerr.sty    2010/04/08 v1.3 Providing info/warning/message (HO)
etexcmds.sty    2010/01/28 v1.3 Prefix for e-TeX command names (HO)
pdfescape.sty    2010/03/01 v1.9 Provides hex, PDF name and string conversions 
(HO)
pdftexcmds.sty    2010/04/01 v0.9 Utility functions of pdfTeX for LuaTeX (HO)
ifluatex.sty    2010/03/01 v1.3 Provides the ifluatex switch (HO)
   ifpdf.sty    2010/01/28 v2.1 Provides the ifpdf switch (HO)
  ifvtex.sty    2010/03/01 v1.5 Switches for detecting VTeX and its modes (HO)
 ifxetex.sty    2009/01/23 v0.5 Provides ifxetex conditional
 hycolor.sty    2009/12/12 v1.6 Color options of hyperref/bookmark (HO)
xcolor-patch.sty    2009/12/12 xcolor patch
letltxmacro.sty    2008/06/24 v1.3 Let assignment for LaTeX macros (HO)
  pd1enc.def    2010/05/04 v6.81a Hyperref: PDFDocEncoding definition (HO)
 intcalc.sty    2007/09/27 v1.1 Expandable integer calculations (HO)
hyperref.cfg    2002/06/06 v1.2 hyperref configuration of TeXLive
kvoptions.sty    2010/02/22 v3.7 Keyval support for LaTeX options (HO)
     url.sty    2006/04/12  ver 3.3  Verb mode for urls, etc.
  bitset.sty    2007/09/28 v1.0 Data type bit set (HO)
bigintcalc.sty    2007/11/11 v1.1 Expandable big integer calculations (HO)
atbegshi.sty    2010/03/25 v1.12 At begin shipout hook (HO)
 hpdftex.def    2010/05/04 v6.81a Hyperref driver for pdfTeX
atveryend.sty    2010/03/24 v1.5 Hooks at very end of document (HO)
rerunfilecheck.sty    2010/03/16 v1.6 Rerun checks for auxiliary files (HO)
uniquecounter.sty    2009/12/18 v1.1 Provides unlimited unique counter (HO)
 nameref.sty    2010/04/30 v2.40 Cross-referencing by name of section
refcount.sty    2008/08/11 v3.1 Data extraction from references (HO)
gettitlestring.sty    2009/12/18 v1.3 Cleanup title references (HO)
 ***********

So, you can see that loading only array and hyperref (say), actually loads a large number of other packages as well.