Some file formats are very demanding and it is very time-consuming to create a preview image for them. Therefore it is possible to set up special rules for those formats.
Two types of pictures can be locked out completely from browsing. These are pictures, that can‘t be loaded directly by PhotoLine, but that are loaded with the help if external drivers. These external drivers are Aldus import drivers and Quicktime. It is recommended to exclude both from browsing and enabling them only, if you really have to.
PDF and digital camera raw files are very time consuming, too, but they may already contain a preview image. In this case PhotoLine is able to use this preview image and to use the standard icon of the operating system otherwise.