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<h1>POI-HWPF - A Quick Guide</h1>
<h3>Overview</h3>
<div id="front-matter"></div>
<p>HWPF is still in early development. It is in the <a href="https://github.com/apache/poi/tree/trunk/poi-scratchpad/">
scratchpad section of the SVN.</a> You will need to ensure you
either have a recent SVN checkout, or a recent SVN nightly build
(including the scratchpad jar!)</p>
<a name="Basic+Text+Extraction"></a>
<h2 class="boxed">Basic Text Extraction</h2>
<div class="section">
<p>For basic text extraction, make use of
<span class="codefrag">org.apache.poi.hwpf.extractor.WordExtractor</span>. It accepts an input
stream or a <span class="codefrag">HWPFDocument</span>. The <span class="codefrag">getText()</span>
method can be used to
get the text from all the paragraphs, or <span class="codefrag">getParagraphText()</span>
can be used to fetch the text from each paragraph in turn. The other
option is <span class="codefrag">getTextFromPieces()</span>, which is very fast, but
tends to return things that aren't text from the page. YMMV.
</p>
</div>
<a name="Specific+Text+Extraction"></a>
<h2 class="boxed">Specific Text Extraction</h2>
<div class="section">
<p>To get specific bits of text, first create a
<span class="codefrag">org.apache.poi.hwpf.HWPFDocument</span>. Fetch the range
with <span class="codefrag">getRange()</span>, then get paragraphs from that. You
can then get text and other properties.
</p>
</div>
<a name="Headers+and+Footers"></a>
<h2 class="boxed">Headers and Footers</h2>
<div class="section">
<p>To get at the headers and footers of a word document, first create a
<span class="codefrag">org.apache.poi.hwpf.HWPFDocument</span>. Next, you need to create a
<span class="codefrag">org.apache.poi.hwpf.usermodel.HeaderStores</span>, passing it your
HWPFDocument. Finally, the HeaderStores gives you access to the headers and
footers, including first / even / odd page ones if defined in your
document. Additionally, HeaderStores provides a method for removing
any macros in the text, which is helpful as many headers and footers
do end up with macros in them.</p>
</div>
<a name="Changing+Text"></a>
<h2 class="boxed">Changing Text</h2>
<div class="section">
<p>It is possible to change the text via
<span class="codefrag">insertBefore()</span> and <span class="codefrag">insertAfter()</span>
on a <span class="codefrag">Range</span> object (either a <span class="codefrag">Range</span>,
<span class="codefrag">Paragraph</span> or <span class="codefrag">CharacterRun</span>).
It is also possible to delete a <span class="codefrag">Range</span>.
This code will work in many, but not all cases, and patches to
improve it are gratefully received!
</p>
</div>
<a name="Further+Examples"></a>
<h2 class="boxed">Further Examples</h2>
<div class="section">
<p>For now, the best source of additional examples is in the unit
tests. <a href="https://github.com/apache/poi/tree/trunk/poi-scratchpad/src/test/java/org/apache/poi/hwpf/">
Browse the HWPF unit tests.</a>
</p>
</div>
<p align="right">
<font size="-2">by&nbsp;Nick Burch</font>
</p>
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