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@@ -61,6 +61,15 @@
The PNG functions allow reading PNG images into image surfaces, and writing
any surface to a PNG file.
</p>
+<p>
+It is a toy API. It only offers very simple support for reading and
+writing PNG files, which is sufficient for testing and
+demonstration purposes. Applications which need more control over
+the generated PNG file should access the pixel data directly, using
+<a class="link" href="cairo-Image-Surfaces.html#cairo-image-surface-get-data" title="cairo_image_surface_get_data ()"><code class="function">cairo_image_surface_get_data()</code></a> or a backend-specific access
+function, and process it with another library, e.g. gdk-pixbuf or
+libpng.
+</p>
</div>
<div class="refsect1" title="Details">
<a name="cairo-PNG-Support.details"></a><h2>Details</h2>