PDF Viewer is a windows PDF reader application with built-in dictionary support. When a word is selected on the document, it is looked up in the dictionary and its meaning is added as an annotation comment.
All dictionary entries can be seen from left hand side.
It supports 6 languages: English, Turkish, German, French, Spanish and Italian.
No need to install, just download and run PdfViewer.exe: https://github.com/omeryanar/PdfViewer/releases/latest/download/PdfViewer.zip
