Saving Files from Safari to Dropbox App (iPad and iPhone)

Question

Hey there! 
I'd like to save files (mostly PDFs) directly from Safari to my Dropbox, but it doesn't work on my iPad as well as on my iPhone.
 
To do so, I take the following steps:
 
1. open the file in Safari
2. click on the 'sharing button' (the square with the arrow 😉 )
3. choose 'save to dropbox' (if I choose directly the Dropbox icon it would only share the file - so that's not what I'm looking for)
4. choose the destination folder
5. it says 'saving' and then 'uploading' and I can see the check mark
 
So far, so good. When I open my Dropbox, there is the just uploaded file named 'index.php', and I can't open it. Neither a second down- and upload nor a change of the document format (.php to .pdf) was helpful.
 
Any idea or input is much appreciated. Thank you!

Edit: both iOS and Dropbox are up to date

Daphne · Answer

Yes indeed @Chiara_, sorry about that!

Where are you downloading this file from?

For example, is it a file sent through a Dropbox shared link from another person, or are you downloading the file from another website perhaps?

Also, once you change the format to PDF, can you let me know if using the Dropbox icon in the horizontal app bar does the trick instead?

Chiara_ · Answer

Hi @Daphne
I assume you wanted to mention me? ;)
My Dropbox app version is 206.2.2, and I installed iOS 14 yesterday on both devices. I have already restarted and rebooted my devices several times.

What I've just observed is that now when I change the document type from automatic to PDF (under the blue options >) the 'save to Dropbox‘ action as well as the Dropbox icon at the top disappears completely, screenshot attached.

Daphne · Answer

Thanks for checking on that @Chiara_!

Can you confirm for me the exact iOS version of your devices and the Dropbox app installed on them?

If you haven't already, please try restarting your devices to see if that helps at all.