Searching multiple PDFs' content on iOS

[dfay]

See this recent thread esp. the most recent set of posts:

*Still* not clear about iCloud drive backup!

I have never found a way to do full text searches on IOS. Of course, it could just be a case of “I’m doing it wrong”. When searching for a replacement for Evernote, I uploaded several types of files (txt,pdf,rtf, etc.) to both iCloud & Google Drive. Almost immediately after syncing I was able to find files on Google drive (using their app) by searching for keywords that appeared within the document, but not in the filename. I was never able to locate them on iCloud by searching for the conte…

I think the main options are DevonThink to Go, PDF Expert, Google Drive or OneDrive. But all will require you to use their app, not the Files app, for full-text search.