How can i send a pdf to photos?

Greetings radarluv,

Unfortunately, The Apple iOS doesn't provide a kind of way to save PDF directly into Camera roll, but alternatively you can be use iBooks, Save PDF directly into iCloud Drive or open up PDF file and take a screen shot to take it into Photos app.

You can also download adobe acrobat from the app store to view PDF files.

However , if you would like the iBooks route please follow the link below for instructions on how to save PDFs to iBook

https://support.apple.com/en-us/HT205751

If you have anymore questions please feel free to ask and I will do my best to solve them promptly.

Furthermore, if I have answers your question and solved your issue kindly mark this issue as solved.

Regards,

Alex 

Photos does not support pdf files.