Pdf viewer can't view password Secured files

[jubreal]

Issue Summary

I expected that the application should open password encrypted pdf files by prompting an "insert password" message or at least unlock when the file when the "Unlock Secure PDF" option is used and the correct password was inputted. But surprisingly this does not work and the secured file remain unopened.

Steps to Reproduce the Problem

1. Launch the pdf viewer plus application
2. Click on the FAB with the '+' sign at the bottom right corner
3. Click on "Pick File" and select a password secured file

• It will be observed that there is no change in output (part of bug)

4. Click on the FAB with the "+" sign again
5. Then click on "Unlock Secure PDF", A pop-up window will appear for you to insert password, input the correct password and press 'ok'.

• It will be observed that there is still no change in output whatsoever, hence, the bug.

Specifications

• App Version: Pdf Viewer Plus v2.7
• Android Version: 6.0

Recording of the bug

https://youtu.be/VprR-NeSDF0

[Fs00]

@JavaCafe01 I think this can now be closed. Now the app makes it very clear when the document is password-protected and when the password entered by the user is wrong.

@jubreal If you experience the inability to open a password-protected PDF despite entering the correct password with the latest version, please open a new issue.