Write a script with a GUI interface

Hey. Remote work for a specialist in writing scripts with a GUI interface. We need to write a small script with a GUI interface, to generate PDF files with unique values inside, which will be taken from Google tables, in the table values are generated in advance.

The result of the work done by the script should be N (indicated in the GUI interface) the number of PDF files with a filled field [Unique Number], which will be a full copy of the reference.

You should add Progress Bar to understand that the program works, or output log actions.

Detailed TK in PDF file