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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Watermarking</title><meta name="generator" content="DocBook XSL Stylesheets V1.66.0"><link rel="start" href="index.html" title="Gallery Manual"><link rel="up" href="gallery1-user.html" title="Chapter�3.�Gallery 1.x User's Guide"><link rel="prev" href="gallery1-user.import.html" title="Importing into gallery"><link rel="next" href="gallery-remote.html" title="Chapter�4.�Gallery Remote"><link rel="stylesheet" href="html.css"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Watermarking</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="gallery1-user.import.html">Prev</a>�</td><th width="60%" align="center">Chapter�3.�Gallery 1.x User's Guide</th><td width="20%" align="right">�</td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="gallery1-user.watermark"></a>Watermarking</h2></div></div></div><p>
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Gallery has the ability watermark images or entire albums of images. This
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is done by overlaying an image on top of another image.
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</p><div class="itemizedlist"><ul type="disc"><li><p>
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NetPBM does not support steganography like ImageMagick. Therefore,
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only visible image watermarking is supported.
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</p></li><li><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p>
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Gallery does not store the original image.
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When an image is watermarked, it is permanent, and can not be undone.
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It is assumed that the user will archive any images that they want
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</p></div></li><li><p>
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Only .gif, .tif, and .png are supported watermark file types. These
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formats support either a transparent color (gif) or an alpha channel
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The size of the watermark, in pixels, is the same for the full size
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and resized images. In proportion to the entire image, the full
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size image's watermark is smaller. This <span class="emphasis"><em>could</em></span>
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be a problem when printing the images.
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</p></li></ul></div><p>
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To use watermarking...
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</p><div class="itemizedlist"><ul type="disc"><li><p>
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Enable watermarking by entering a watermark directory in the
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Configuration Wizard under the "Locations and URLs" tab--fill out a
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directory containing the images you want to use as watermarks.
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Use the full system path. When logged in as admin, you will now see
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[watermark�album] as an option in each album. If you that option, you
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will be presented with a page showing you the possible watermarking options.
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Note that all files located in the watermark directory you defined
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earlier will now be available in the dropdown below the image.
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All you need to do to add a new watermark picture is to add it to the
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watermark directory, re-open the watermarking page and select it in the dropdown.
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The preview button enables you to preview the watermark before applying it, helping
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you visualize how it's going to look.
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</p></li></ul></div><p>
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</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="gallery1-user.import.html">Prev</a>�</td><td width="20%" align="center"><a accesskey="u" href="gallery1-user.html">Up</a></td><td width="40%" align="right">�</td></tr><tr><td width="40%" align="left" valign="top">Importing into gallery�</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">�</td></tr></table></div></body></html>
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