FiveFilters.org: PDF Newspaper
http://fivefilters.org/pdf-newspaper/
CHANGELOG
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2.6 (2019-07-15)
 - PHP 7 compatible (tested with PHP 7.3)
 - Full-Text RSS updated to version 3.9.5
 - HTML Purifier updated to version 4.11.0
 - SimplePie updated
 - Humble HTTP Agent updated
 - Minimum PHP version it will run on is now PHP 5.4
 - Plus other minor fixes/improvements

2.5 (2014-02-04)
 - New: HTML output with editable content and print stylesheet (Firefox recommended for printing)
 - New: Output parameter to choose between PDF, HTML, and PDF for download
 - New: Text direction parameter (only for HTML output for the time being)
 - New: PDF Letter template for US users
 - New: Form field to specify start date (if feed items include dates)
 - New: Config option to set PDF filename - see $options->filename
 - New: Config option to enable/disable output caching - see $options->caching
 - New: Config option to for whitelisting/blacklisting hosts - see $options->allowed_hosts and $options->blocked_urls
 - Font subsetting disabled in PDF output to improve iOS and PDF.js rendering
 - PDF is no longer generated if there are no items to include (e.g. no articles published after start date)
 - Table showing available request parameters now shown in index.php
 - Full-Text RSS updated to version 3.1
 - HTML Purifier updated to version 4.6.0
 - SimplePie updated to version 1.3.1 
 - PHP Typography updated
 - Humble HTTP Agent updated
 - TCPDF fonts updated
 - TCPDF minor update (latest version not compatibile with our modifications)
 - Plus other minor fixes/improvements

2.4 (2011-11-19)
 - New A5 template
 - Full-Text RSS 2.7 now bundled
 - New config option: require_key - restrict access to those with password/key
 - New, easier to use form for creating PDFs
 - Autoloading of necessary files to improve performance
 - Humble HTTP Agent now used to improve performance
 - Auto-discovery of feeds disabled - to bring it in line with how users expect it to handle standard HTML pages
 - Now tries to parse content in following order: 1. feed 2. OPML 3. HTML
 - HTML Purifier updated
 - SimplePie updated
 - TCPDF updated
 - Plus other minor fixes/improvements

2.2 (2010-07-07)
 - Support for PHP 5.3 (thanks Murilo!)
 - Smaller PDF file sizes (thanks to TCPDF's font subsetting)
 - Improved vertical spacing between HTML elements
 - Libraries brought up to date
 - SmartyPants replaced with PHP Typography
 - New title font
 - Better image handling
 - Better page/column break handling
 - Basic support for plugins

1.0 (2009-06-29)
 - Initial release