Thumbnails

A thumbnail is a small image that graphically represents the contents of a directory. Each directory may contain a thumbnail image with the name "thumb.gif" or "thumb.jpg". These file names are reserved for thumbnail images, and will not appear as slides in the index.

When an index is created, its automatically generated header will contain the thumbnail image for the directory (if a thumbnail file exists). In addition, each link to a subdirectory which contains a thumbnail will display that directory's thumbnail next to its link.

The recommended size of a thumbnail is 100×66 pixels, but any size that will fit in the index is allowed. If the height of the thumbnail exceeds 150 pixels, it will not be displayed in the automatically generated header.

Default Thumbnail

The default thumbnail is used when a directory does not have a thumbnail file. The default thumbnail is stored in the "icons" directory, with the name "nothumb.gif" or "nothumb.jpg". The default thumbnail is entirely optional. If it does not exist, then no thumbnail image will be displayed for directories that do not have thumbnails.

Slide Thumbnails

If a subdirectory called "thumbs" exists off the current directory, the thumbnail images in that directory will be used as thumbnails for the individual images in the current directory. The thumbnails must be named "tn_filename_ext.gif" or "tn_filename_ext.jpg", where filename is the base file name of the slide image file (without the extension), and ext is the file name extension. For example, a GIF thumbnail for "myslide.jpg" would be "thumbs\tn_myslide_jpg.gif".

If you have ThumbsPlus (Cerious Software, Inc.), you can easily generate thumbnails for individual slides. Just use Web Page Wizard to generate thumbails for all your slides, and store them in the "thumbs" subdirectory. Then delete the HTML file that Web Page Wizard generated.

Slide thumbnails will only be displayed if the index format supports them. Currently, only explicitly formatted or combined indexes support slide thumbnails.