gtk-vector-screenshot software package provides takes screenshots of applications as PDF or SVG files, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gtk-vector-screenshot
gtk-vector-screenshot is installed in your system.
Make ensure the gtk-vector-screenshot package were installed using the commands given below,
$ sudo dpkg-query -l | grep gtk-vector-screenshot *
You will get with gtk-vector-screenshot package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | GNOME |
| Package | gtk-vector-screenshot |
| Version | 0.3.2.1-2 |
| Description | takes screenshots of applications as PDF or SVG files |
| Sub Section | gnome |