Henri, Thanks for the suggestion. I tried to add the additional fonts, but this did not seem to make a difference. The math equations render fine, but a search performed for terms in an equation still does not work when I specify the font. When I remove the font specification, it works fine. There must be some difference in the font that is used even if I don't specify a math font. Any other thoughts about why the math font changes or how to get a math font that is searchable, or get back to the default math font? -Lance ------------------------------

Message: 4 Date: Fri, 18 May 2018 18:55:14 +1200 From: Henri Menke To: ntg-context@ntg.nl Subject: Re: [NTG-context] Fonts and equations Message-ID: <12743277-ebd0-67c7-2393-fe33e97bfaac@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed

On 17/05/18 23:19, Lance Larsen wrote:

...

I have a context document with several equations. One really nice feature with equations is that by default you can search for variable names in equation in a PDF reader like acrobat. However, I needed to configure the document to use arial for the text. Once I do this, the equations are no longer searchable. I assume something happened to the mathematics font. How to I change the font for the document text, but keep the math equations searchable? Is there a way to change the document font, but not affect the math font? Here is a sample of how I configured the font. The equations are no longer searchable.

% Load the Arial font values for regular, italics, bold, etc. \starttypescript [serif] [arial] \definefontsynonym [Serif] [name:arial] \definefontsynonym [SerifBold] [name:arialbold] \definefontsynonym [SerifItalic] [name:arialitalic] \definefontsynonym [SerifSlanted] [name:arialitalic] \definefontsynonym [SerifBoldItalic] [name:arialbolditalic] \definefontsynonym [SerifBoldSlanted] [name:arialbolditalic] \definefontsynonym [SerifCaps] [name:arial] \stoptypescript

% Now we define the 'arial' font as an available option \definetypeface [arial] [rm] [serif] [arial]

The typeface "arial" you defined has no math font (and no sans and no mono font). Add those and you should be fine:

\definetypeface [arial] [rm] [serif] [arial] \definetypeface [arial] [ss] [sans] [modern] \definetypeface [arial] [tt] [mono] [modern] \definetypeface [arial] [mm] [math] [modern]

...

% Set 'arial' 10pt as the default font for the document \setupbodyfont [arial,rm,10pt]

\starttext

$z_1 = x_1 + y_1$

$a = b + c$

\stoptext