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Jean-Francois Dockes
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@ -2131,19 +2131,32 @@ metadatacmds = ; <em class=
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extensive facilities for storing metadata along with the
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document, and these facilities are actually used in the
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real world.</p>
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<p>In consequence, the <code class=
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"filename">rclpdf.py</code> PDF input handler has more
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complex capabilities than most others, and it is also more
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configurable. Specifically, <code class=
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"filename">rclpdf.py</code> can automatically use
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<span class="application">tesseract</span> to perform OCR
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if the document text is empty, it can be configured to
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extract specific metadata tags from an XMP packet, and to
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extract PDF attachments.</p>
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<p>The PDF handler can execute an external program to run
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OCR if no text is found in the document. This is now
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described in a <a class="link" href="#RCL.INDEXING.OCR"
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title="2.9. Recoll and OCR">separate section</a>.</p>
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<p>In consequence, the <span class=
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"command"><strong>rclpdf.py</strong></span> PDF input
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handler has more complex capabilities than most others, and
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it is also more configurable. Specifically, <span class=
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"command"><strong>rclpdf.py</strong></span> has the
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following features:</p>
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<div class="itemizedlist">
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<ul class="itemizedlist" style="list-style-type: disc;">
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<li class="listitem">
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<p>It can be configured to extract specific metadata
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tags from an XMP packet.</p>
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</li>
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<li class="listitem">
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<p>It can extract PDF attachments.</p>
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</li>
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<li class="listitem">
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<p>It can automatically perform OCR if the document
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text is empty. This is done by executing an external
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program and is now described in a <a class="link"
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href="#RCL.INDEXING.OCR" title=
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"2.9. Recoll and OCR">separate section</a>,
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because the OCR framework can also be used with
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non-PDF image files.</p>
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</li>
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</ul>
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</div>
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<div class="sect2">
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<div class="titlepage">
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<div>
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@ -2270,8 +2283,14 @@ metadatacmds = ; <em class=
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</li>
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</ul>
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</div>
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<p>Configuration. See the <a class="link" href=
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"#RCL.INSTALL.CONFIG.RECOLLCONF.OCR" title=
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<p>To enable this feature, you need to install one of the
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supported OCR applications (<span class=
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"application">tesseract</span> or <span class=
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"application">ABBYY</span>), enable OCR in the PDF handler,
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and tell <span class="application">Recoll</span> where the
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appropriate command resides. The last parts are done by
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setting configuration variables. See the <a class="link"
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href="#RCL.INSTALL.CONFIG.RECOLLCONF.OCR" title=
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"Parameters for OCR processing">relevant section</a>. All
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parameters can be localized in subdirectories through the
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usual main configuration mechanism (path sections).</p>
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@ -1402,21 +1402,27 @@ metadatacmds = ; <replaceable>tags</replaceable> = tmsu tags %f
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<title>The PDF input handler</title>
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<para>The PDF format is very important for scientific and technical
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documentation, and document archival. It has extensive
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facilities for storing metadata along with the document, and these
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facilities are actually used in the real world.</para>
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documentation, and document archival. It has extensive
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facilities for storing metadata along with the document, and these
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facilities are actually used in the real world.</para>
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<para>In consequence, the <filename>rclpdf.py</filename> PDF input
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handler has more complex capabilities than most others, and it is
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also more configurable. Specifically, <filename>rclpdf.py</filename>
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can automatically use <application>tesseract</application> to perform
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OCR if the document text is empty, it can be configured to extract
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specific metadata tags from an XMP packet, and to extract PDF
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attachments.</para>
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<para>The PDF handler can execute an external program to run OCR if
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no text is found in the document. This is now described in a
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<link linkend="RCL.INDEXING.OCR">separate section</link>.</para>
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<para>In consequence, the <command>rclpdf.py</command> PDF input
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handler has more complex capabilities than most others, and it is
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also more configurable. Specifically, <command>rclpdf.py</command>
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has the following features:
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<itemizedlist>
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<listitem><para>It can be configured to extract
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specific metadata tags from an XMP packet.</para></listitem>
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<listitem><para>It can extract PDF
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attachments.</para></listitem>
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<listitem><para>It can automatically perform
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OCR if the document text is empty. This is done by
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executing an external program and is now described in a
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<link linkend="RCL.INDEXING.OCR">separate
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section</link>, because the OCR framework can also be used
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with non-PDF image files.</para></listitem>
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</itemizedlist>
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</para>
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<sect2 id="RCL.INDEXING.PDF.XMP">
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<title>XMP fields extraction</title>
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@ -1477,7 +1483,7 @@ metadatacmds = ; <replaceable>tags</replaceable> = tmsu tags %f
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<title>PDF attachment indexing</title>
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<para>If <application>pdftk</application> is installed, and if the
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the
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the
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<link linkend="RCL.INSTALL.CONFIG.RECOLLCONF.PDFATTACH">pdfattach</link>
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configuration variable is set, the PDF input handler will try to
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extract PDF attachements for indexing as sub-documents of the PDF
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@ -1489,6 +1495,7 @@ metadatacmds = ; <replaceable>tags</replaceable> = tmsu tags %f
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</sect1>
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<sect1 id="RCL.INDEXING.OCR">
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<title>Recoll and OCR</title>
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@ -1521,8 +1528,13 @@ metadatacmds = ; <replaceable>tags</replaceable> = tmsu tags %f
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</itemizedlist>
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</para>
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<para>Configuration. See the
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<link linkend="RCL.INSTALL.CONFIG.RECOLLCONF.OCR">
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<para>To enable this feature, you need to install one of
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the supported OCR applications
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(<application>tesseract</application>
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or <application>ABBYY</application>), enable OCR in the PDF
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handler, and tell &RCL; where the appropriate command resides. The
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last parts are done by setting configuration variables. See the
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<link linkend="RCL.INSTALL.CONFIG.RECOLLCONF.OCR">
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relevant section</link>. All parameters can be localized in
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subdirectories through the usual main configuration mechanism (path
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sections).</para>
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