This subdialog allows to modify where and how browse files are saved. Browse files are files with the extension ".plb". They are used to speed up the Browse-function (see chapter 5.4 and chapter 7.10.1.30) by caching the generated preview pictures.
Overwrite Existing Images has only an effect, if the size of the browse images has been changed in Browse/Preview Images. If this option is selected, a new browse image will be created, even if there already is an up to date version, but has the wrong size.
Browse File controls whether and where a browse file will be saved. If Don‘t save is chosen, browse files will not be saved. Therefore the next browse will last as long as the first. Save in image folder is the default setting and the most efficient one. The browse file is saved in the browsed directory. Save in user folder means that all browse files are stored at a central location. On Windows this is usually on the boot drive in the folder "Documents and Settings". In this folder there is a folder named like the current user and in the user folder there is a folder named "Application Data". Here you can find a folder called "Application Data", which contains the folder "PhotoLine", and this one contains a folder named "Browse". In this folder the browse files will be stored. An example of the complete path of the user directory is "Documents and Settings\Martin\Application Data\PhotoLine\Browse". Note that this folder is maybe only visible, if the folder option "Show all files and folders" of the Explorer is checked. On macOS this directory is in the preferences folder in the folder "PhotoLine". For best performance this option should be set to Save in image folder.
Save Browse File for Read Only Volumes controls whether PhotoLine should save browse files, if the browsed directory is write-protected. If this option is checked, the browse files will be saved in the user directory (see above).
Some users want to work with a browse window as large as possible. Therefore it is possible to minimize or to close the browse window after opening a file.
If On Opening Add Files To Recent File List is activated, files opened by double-clicking will be added to the recent file list.
On macOS there is the additional option to save a preview image directly in a document file. But note that this option may enlarge small files significantly. Furthermore you can control, whether the browse window should behave like a document window or like a dialog.