Save as PDF (Print)

I’m creating a invoice billing application. I’m using deephost invoice printing extension. After creating invoice it gives file path where pdf is saved.

When user click print i want to open this

after researching many communitys i got advance pdf creator by @Shreya .
I used layout to pdf block


after pdf create i called print pdf with this block

but got this error

Tested in niotron companion and apk.
android version 10 used.

Please help me create a successfull save as pdf (Print option)

regards,
morsalin

You should contact with the extension developer.