# C1.C1Preview.FontProcessingOptions.UseOldSubstitutionAlgorithm

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<h1 id="C1_C1Preview_FontProcessingOptions_UseOldSubstitutionAlgorithm_" data-uid="C1.C1Preview.FontProcessingOptions.UseOldSubstitutionAlgorithm*">UseOldSubstitutionAlgorithm Property
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<a id="C1_C1Preview_FontProcessingOptions_UseOldSubstitutionAlgorithm_" data-uid="C1.C1Preview.FontProcessingOptions.UseOldSubstitutionAlgorithm*"></a>
<h4 id="C1_C1Preview_FontProcessingOptions_UseOldSubstitutionAlgorithm" data-uid="C1.C1Preview.FontProcessingOptions.UseOldSubstitutionAlgorithm">UseOldSubstitutionAlgorithm</h4>
<div class="markdown level1 summary"><p>Gets or sets a value indicating whether to use the old (prior to 2013v1 release) algorithm of font substitution.
This property is only used when <a class="xref" href="C1.C1Preview.FontProcessingOptions.FontHandling.html#C1_C1Preview_FontProcessingOptions_FontHandling">FontHandling</a>
is set to <a class="xref" href="C1.C1Preview.FontHandling.html#C1_C1Preview_FontHandling_EmbedActualFonts">EmbedActualFonts</a> or <a class="xref" href="C1.C1Preview.FontHandling.html#C1_C1Preview_FontHandling_BuildActualDocumentFonts">BuildActualDocumentFonts</a>.
The default value is <b>false</b>.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">[Browsable(false)]
[Obsolete]
public bool UseOldSubstitutionAlgorithm { get; set; }</code></pre>
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  <pre><code class="lang-vbnet hljs">&lt;Browsable(False)&gt;
&lt;Obsolete&gt;
Public Property UseOldSubstitutionAlgorithm As Boolean</code></pre>
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