How To Annotate PDF Online?
Easy-to-use PDF software
Is there a PDF editor with annotation features for Android and iOS?
I'm writing this answer assuming you want to create a PDF from some documents you clicked a picture of. You can opt for any of the popular document scanning applications like CamScanner (it's back on play store so we can safely assume it's not harmful anymore), Add Notes To Pdf.online Scan etc. All these applications have the ability to create PDF of the documents scanned through it. Hope this helps Cheers..!!
Annotate PDF: All You Need to Know
UPDATE: Thank you for the question.
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