It is a lightweight and easy to use console presentation software with focus on PDF documents and images.

[6][7] Impressive can be used to present JPG based photographic albums and in generall full sets of documentation in open source or copy-left formats with older or low power computer hardware and from the console.

Highlight boxes help direct the focus of attention of the audience on a specific part of the current slide by dragging a rectangle on the screen while holding down the left mouse button.

Controlled by a special key a highlighting circle will appear and follow the mouse cursor as it moves over the slide.

[12] The computer graphics rendering of PDF document slides is delivered by Xpdf, MuPDF or Ghostscript.