How I make digital negatives in Gimp for contact printing

This a simple video on how I make digital negatives for contact printing. I have had a few people asking about it so here it is lol it is pretty basic. I use Gimp for editing and it is free.
https://www.gimp.org/downloads/

I use the Canon Pixma IX6820 photo printer.
https://www.amazon.com/gp/product/B00HM0IVDY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

And I use screen printing transparency film.
https://www.amazon.com/Waterproof-Inkjet-Transparency-Screen-Printing/dp/B07S5GKGSJ/ref=sr_1_1_sspa?keywords=transperancy&qid=1637979505&sr=8-1-spons&psc=1&smid=A1Z3JZVFFS12NF&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyQUNXREZPQlo2MUFMJmVuY3J5cHRlZElkPUEwMzcxMTE1MVNLR1VPWjdNWVpTMSZlbmNyeXB0ZWRBZElkPUEwMjE3OTA2RkFJWUpRUFZHV1VBJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
Steps are 1 convert to grayscale 2 invert and 3 adjust contrast and brightness depending on the type of process you are using and that is it besides printing. Always use pigment ink always use the highest resolution your printer will allow, be sure to pick glossy photo paper in the printer settings and always make sure the correct print side is facing the proper direction before printing. That's all I can think of hop it helps.

Видео How I make digital negatives in Gimp for contact printing канала Prussian blues