# C1.C1Preview.C1PrintDocument.DocumentFormatVersion

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<h1 id="C1_C1Preview_C1PrintDocument_DocumentFormatVersion_" data-uid="C1.C1Preview.C1PrintDocument.DocumentFormatVersion*">DocumentFormatVersion Property
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<a id="C1_C1Preview_C1PrintDocument_DocumentFormatVersion_" data-uid="C1.C1Preview.C1PrintDocument.DocumentFormatVersion*"></a>
<h4 id="C1_C1Preview_C1PrintDocument_DocumentFormatVersion" data-uid="C1.C1Preview.C1PrintDocument.DocumentFormatVersion">DocumentFormatVersion</h4>
<div class="markdown level1 summary"><p>Gets a string representing the version of the document persistence format
supported by the current assembly.
This version is used to check persisted documents' compatibility.
Versions are backwards-compatible, but not vice versa
(i.e. a document persisted using a newer version of <a class="xref" href="C1.C1Preview.C1PrintDocument.html">C1PrintDocument</a>
may be unreadable by an older version).</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public static string DocumentFormatVersion { get; }</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Shared ReadOnly Property DocumentFormatVersion As String</code></pre>
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