For multimedia files used under the Microsoft Windows, the operating system automatically generated images (cached thumbnails) and stores them in special files.”Thumb*.db Viewer” allows browse and retrieve such images.Pro edition has all the features of “Thumb*.db Viewer” and new functionality:* The possibility to create custom thumbnail databases.* The possibility to search thumbnail from Thumbs.db (thumbcache_*.db, iconcache_*.db) file in all thumbnail databases which were created already.* Export files Thumbs.db, ehthumbs.db, thumbcache_*.db or iconcache_*.db content or custom thumbnail databases into PDF fileNB! When the program is launched for the first time, it converts custom databases of previous versions, if any.Selected thumbnail from source file may be copied to thumbnail database.Custom thumbnail database can be added, removed or edited.The number of custom thumbnail databases is not limited.Custom thumbnail databases are generated on the basis of thumbnails which may be located in different source files.The same thumbnail may be presented in few databases.Thumbnail database may have the name and annotation.Every thumbnail may be commented.Every thumbnail has detailed information about the source file the thumbnail is copied from.There is a possibility to export thumbnails into PDF file.Custom thumbnail databases are generated into PDF files along with name, annotation and comments for every thumbnail.If the thumbnail database has the thumbnails from different source files, the PDF file has separate section for every file and outline with source files names.The PDF document can be encrypted to protect its contents from unauthorized access (set owner and user password).User can set permissions to determine protection options which are permitted when the document is opened with user access.