PDF Thumbnail Generator is an interesting tool that creates thumbnails galleries (miniature graphic views) of the contents of your PDF files, and, once created, inserts them into the PDF itself to link to each of the sections.
Thumbnails images can be in BMP, JPG or even EMF (Encapsulated Meta File) format. Once the thumbnails have been created and embedded within the PDF, you can see them with any PDF viewer (for example, Adobe Reader), appearing to the left of the document and allowing linking from there.
The PDF user Thumbnail Generator is the one who decides whether or not to show these thumbnails when opening the PDF. In addition, it is totally free.
You can free download PDF Thumbnail Generator 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.