Change Large Image Sizes and Quality
You also control HTML and Flash large image sizes from the Appearance pane. There are fundamental differences between the HTML and the Flash panes. HTML large image sizes are controlled from the Image Pages Size slider by pixels to a fixed size, regardless of the size of the viewer's browser window.
Flash large images can be Extra Large, Large, Medium, or Small. In reality, Lightroom creates more sizes than that. In fact, it generates three sizes for each category. That way, when a viewer resizes their browser window, the thumbnails and previews adjust accordingly.
The JPEG quality of large images can be set for both HTML and Flash styles in the Output Settings pane. The higher the Quality number, the better the quality (less compression). Higher quality numbers also create larger file sizes and potentially a slower download speed on the viewer side.
Add Copyright Notice & Metadata
The Output pane for either HTML or Flash styles is also where you can add a copyright notice to the images (circled). Lightroom places the copyright information in the lower left corner of each image based on EXIF metadata. You have no control over where the information is placed, or font type, size, or style.
Add Info Text and Identity Plate
Both the HTML and Flash gallery styles give you the option to add a title or caption based on EXIF data. This is done from the Image Info pane. You can also use an Identity Plate to add custom text or graphic. I'll show you more on this in the next section.
In the Web module Label's pane, for both HTML and Flash Galleries, you can enter your email address. Do this knowing that by including your email address on your site you are now susceptible to web bots that automatically harvest web sites for email addresses and sell the addresses to spammers.