Web developers save the PSD files into layers which can be easily open in Photoshop
and you can edit the theme according to the need of your site which is being developed in HTML. Once you have made the changes in the PSD file then these files can be saved in the JPEG or any other compatible format and then these images are coded into HTML and XHTML bit by bit. These are the common steps which are followed while converting the files.
PSD To XHTML conversion services is a step by step process which makes the templates Optimized for the search engines and easily compatible with any CMS. The fonts are resized, tables have been eliminated from the code which distorts the web page on different browsers and the converted format will be compatible with the entire standard web browser. The end product will not remain same as original as all the images and columns have been displaced. Some of the service provider performs this task in months while other does this in 24 hours.
Converting the PSD into HTML and XHTML can become very costly for you but there are various web sites which can do this job for you. You just have to send the template in PSD file format in a zip format and they will convert the file for you and this will be done in few hours. Web designers are very fast in converting the PSD files into HTML and XHTML. They can also change the background and can add or remove the images for you, add links and provide button to the PSD is now taking the format of HTML and XHTML.
You have to look for best PSD to HTML and XHTML provider otherwise you will have to face lot of problems like monitoring the projects given to you and you will not be able to deliver the project at right time. So always go for best service provider which serves your purpose in an effective and easily usable format and at very low cost.