Viljami Kuosmanen

WordPress PDF Templates
This plugin utilises the DOMPDF Library to provide a simple URL endpoint e.g. http://my-site.com/my-post/pdf/ that generates a downloadable PDF file.
If pretty permalinks are disabled. GET parameters (e.g. ?p=1&pdf) can be used instead.
The PDF output can be customized by copying the index-pdf.php file from the plugin directory to your theme and creating your own custom template for PDF prints.
Stylesheets used on the site are disabled by default, but you can define your own stylesheets within the pdf-template.php file. PDF Templates can be previewed as raw HTML at the /pdf-preview URL endpoint.
Source available at https://github.com/anttiviljami/wp-pdf-templates

WordPress PDF Templates

This plugin utilises the DOMPDF Library to provide a URL endpoint e.g. /my-post/pdf/ that generates a downloadable PDF file.

Otto Kekäläinen

This plugin fights comment and registration spam on your website. This plugin is based on the Open Source WP No-Bot plugin at http://www.compdigitec.com/apps/wpnobot by Compdigitec.
This plugin is authored by <a href="http://seravo.fi/" rel="nofollow ugc">Seravo Oy</a>, which specializes in open source support services and among others is the only company in Finland to provide <a href="http://seravo.fi/wordpress-palvelu" rel="nofollow ugc">WordPress Premium Hosting</a>.
Source available at https://github.com/Seravo/wp-spam-question-filter

WP Spam Question Filter

This plugin fights comment and registration spam on your website.

WordPress PDF Templates vs WP Spam Question Filter