Doc2PDF is a portable application for converting documents from DOC to PDF. The program weighs only 56 Kb and its interface is extremely simple.
After running Doc2PDF, you need to select the files to convert. To do this, select a disk in the drop-down list and select a folder in the tree-like browser in the left pane. After selecting a folder in the middle pane, the DOC files contained in that folder will appear. You need to tick the boxes next to the required files, and the good news is that if you tick a few files, the program will convert them automatically, i.e. in batch mode. You will need to specify a folder below to save PDF documents.