hey uhm, I need some help

I haven't submitted the forms on that airtable thing
It seems that I can't turn my picture to a pdf file? Is there any way to reccomend how to convert my stuff to pdf because I'm using my phone to draw and I could use some help about that.

Here are my submissions right now! Please help me with this issue 🙏😅

Unnecesary night mode cuz why not

The link: https://steemit.com/art/@maya525/dlive-logo-contest-with-unnecessary-night-mode-art-process-finding-balance-to-myself

The explanation on why or process of it is there :D