# pdf/a: Width information for rendered glyphs is inconsistent

Have there been any advances to create a valid pdf/a-1b from LaTeX including math fonts? I get the following error from preflight in Adobe Acrobat Pro: Width information for rendered glyphs is inconsistent for the document (TeXLive 2011 and pdflatex):

\documentclass{article}

\usepackage{MnSymbol}
%\usepackage{mdsymbol}
\usepackage[a-1b]{pdfx}

\begin{document}

$$\sum$$

\end{document}


For this to run, a sRGB profile is needed which can be downloaded here. Rename it to sRGBIEC1966-2.1.icm.

Next to fixable errors (eg no metadata supplied), I get the error for either MnSymbol or mdsymbol. Is there something to be done in the mf source code? Any other advice? Unfortunately, Acrobat cannot fix this issue.

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I get the same error with \documentclass{standalone}\usepackage[a-1b]{pdfx}\begin{document}x\end{document‌​}. The PDF has a width entry of 527.8, fontforge (and the afm file) give a width of 527 - but I know almost nothing about fonts. –  topskip May 25 '12 at 20:54
XeTeX also inserts 527.8 but that gives no error. To reproduce the problem one can leave out the \usepackage command. –  topskip May 25 '12 at 21:25
@sebschub Maybe you should update your question, since Acrobat can fix this issue. –  maetra Dec 3 '12 at 8:19