Encrypted PDF will not open after IOS 10 update

Our users at work are reporting this too. Our paystubs are sent as encrypted PDFs to their work email and all the symptoms you describe above occur on all iOS devices that have been upgraded to >10.0.0. I applied the 10.0.2 update hoping it was fixed, but still nothing. Saving to iCloud Drive also is not effective.

The only workaround I've found is to open in Dropbox or Google Drive. Those apps' built-in pdf viewer opens the file successfully.

We have had this issue as well. My guess is that they are requiring a different encryption level to pass files from one app to another. Our password-protected PDFs were RC-128 and I'm guessing they need to be at least AES-128, but I can't prove it. We are trying to rebuild our program that applies the password to see if AES-128 works.

The Reply that is marked "Solved" is not a solution and should not have been flagged as the solution, it is simply a work around and many iPhone users do not have that option available or they do not want to use that option to simply open their PDF files. The iPhone should be capable of opening a password protected PDF period (as my Galaxy Note does).

I am adding a new post so this issue will still be open.

Just got off the phone with Apple and they have had several local governments that send out payroll this way and now their employees cannot open their payroll stubs. He said that the engineers are aware of the problem and they are working on a patch. Until then he suggested using Google Drive or Dropbox to open the pdf.

Our vendor has sent us a password-protected PDF using AES-128 encryption and it works properly on iOS 10. I'm sure they will be delivering an updated application soon.

Since Apple seems to have turned up the security requirements I can't see them turning them back down, but I've been wrong before.

Depending on the platform and the application you are using to add passwords to PDFs, you probably need to contact your vendor to get them working on a fix.

I'm having the same issue! The Adobe Reader app works for me still. Apple needs to fix this. I don't want another app that I don't really have to have taking up space.

I have the same issue. Anyone know where we can get information from Apple on their progress to resolve this. This has crippled my entire user base!

The 10.2 update appears to have addressed this problem.

Unfortunately 10.2 caused the problem for us, haven't seen it prior.

No it hasn't. It's still happening. In fact, 10.2 created the problem for me. 10.1 was fine for me.

Weird. Mine has worked flawlessly since the 10.2 update. My pay stubs are password protected and they open again. Before that they just showed a blank white screen.