PSD to HTML services emerged around the year 2004 when people started blogging on Wordress, Joomla (Mambo then) & Drupal and wanted unique designs as theme or a template in HTML/CSS. The basic reason why a huge demand rose for PSD to HTML service was that blogging & changing designs using Wordress, Joomla or Drupal was easy for everyone. People started with a small website & basic or default templates and soon when their blog was popular they got it designed and converted to HTML/CSS. It was the start of Web 2.0.

Today free designs are available for almost every blogging platform - Blogger, Drupal, Joomla, Pligg & Wordpress - or even for Cube Cart, CMS Made Simple, Magento, Movable Type & X-Cart and people create a simple website in the very beginning phase and fill it with content. The reason for going with these CMSs or blogging platforms is that they are simple, free to download & use and have more features than are required for a general website. Once their website becomes popular they get their own template designed exclusively for them which is later sliced to a theme, template or skin as it's popularly called and used with these FREE content management systems.

And today when the web has graduated to Web 2.0 HTML/CSS has been replaced by XHTML, which is basically HTML that conforms to XML, and has taken the shape of a necessity as more people have turned geek today and want to have a blog or website owned by them. With such a large number of people having their designs converted to XHTML/CSS, the PSD to XHTML services is slowly taking the shape of an industry.

Earlier, there were no such companies who offered PSD to HTML or PSD to XHTML services but today PSD to HTML/XHTML/CSS conversion services are sought-after and growing at a rapid pace.

The idea of a PSD to XHTML service is quite simple. Using Adobe Photoshop, GIMP or other software packages, graphic & web designers create digital images − files with AI, JPG, PNG or PSD extensions. To convert them into a webpage template or blog theme, you need to develop XHTML code. PSD to XHTML companies are those who provide such a transformation.

So, the emergence of PSD to XHTML services is not just by a chance but by a growing need.