Invert all - This will mark all unmarked pictures and unmarked marked ones.

Clear all marks at this level - All marked pictures at the current tolerance level will be unmarked. Pictures that are shown at higher tolerance levels will not be effected.

Clear all marks - All marked pictures, at all tolerance levels will be unmarked.

Smart mark duplicates - This auto marking filter is the most powerful in PhotoSort. It goes trough all duplicate groups and leaves only one picture unmarked so you can get rid of duplicates in only a few clicks. What picture will be kept depends on file size and dimensions of all pictures in the group - the largest one is kept and in case two or more pictures have the same file size the one with greater dimensions is kept.

Newly cached pictures - This filter will mark all pictures that were recently added to the picture collection. Caching must be enabled and cache file must exist for this filter to work.

All from this folder - This filter will mark all pictures that are contained in the same folder as the picture user has right clicked.

Pictures of type - This will open another menu that will let you chose extension based on which pictures will be marked. For example it can mark all bitmap (BMP) pictures at once.

Mark by size - In the dialog box that will open you can enter the size in kilobytes (KB) and specify if you want all pictures with size equal to, less than or greater than the specified to be marked.

Mark by dimensions - In the dialog box that will open you can enter width and height in pixels and specify if you want all pictures with dimensions (width multiplied by height) equal to, less than or greater than the specified to be marked.

Custom path / name mask - In the dialog box that will open you can enter path mask that will be used as a filter for marking pictures. All pictures who's path and name match specified mask will be marked. Wildcard symbols ? and * are supported. The question mark substitutes any one character while asterisks substitutes many characters.

For example mask: "E:\Wallpapers\Nature\*.jpg" will mark all JPG pictures from E:\Wallpapers\Nature\

Invert all - This will mark all unmarked pictures and unmarked marked ones.

Clear all marks - All marked pictures will be unmarked.

All pictures - This will mark all pictures in the list.

All zero-byte pictures - This will mark all pictures with file size of 0 bytes.

All from this folder - This filter will mark all pictures that are contained in the same folder as the picture user has right clicked.

Pictures of type - This will open another menu that will let you chose extension based on which pictures will be marked. For example it can mark all bitmap (BMP) pictures at once.

Custom path / name mask - In the dialog box that will open you can enter path mask that will be used as a filter for marking pictures. All pictures who's path and name match specified mask will be marked. Wildcard symbols ? and * are supported. The question mark substitutes any (only one) character while asterisks substitutes many characters.

For example mask: "E:\Wallpapers\Nature\*.jpg" will mark all JPG pictures from E:\Wallpapers\Nature\