To create a PDF on your iPhone using the Files app:
Open the Files App and navigate to the location where you want to save the PDF.
**Tap the three dots in the upper-right corner and select New Document.
Choose Blank Document or select a template, then tap Create.
After editing, tap the three dots again, select Export, and choose PDF to save your document as a PDF file.
Your PDF will be saved in the selected location in the Files app..
You can also find the more information on our technology blog