TCPDF main features are:

• supports all ISO page formats;
• supports UTF-8 Unicode and Right-To-Left languages;
• supports document encryption;
• includes methods to publish some xhtml code, supporting the following elements: h1, h2, h3, h4, h5, h6, b, u, i, a, img, p, br, strong, em, font, blockquote, li, ul, ol, hr, td, th, tr, table, sup, sub, small;
• includes a method to print various barcode formats using an improved version of "Generic Barcode Render Class" by Karim Mribti (http://www.mribti.com/barcode/) (require GD library: http://www.boutell.com/gd/)
• supports TrueTypeUnicode, TrueType, Type1 and encoding;
• supports custom page formats, margins and units of measure;
• includes methods for page header and footer management;
• supports automatic page break;
• supports automatic page numbering;
• supports automatic line break and text justification;
• supports JPEG, PNG anf GIF images;
• supports colors;
• supports links;
• support page compression (require zlib extension: http://www.gzip.org/zlib/);
• the source code is full documented in PhpDocumentor Style (http://www.phpdoc.org).