Print for backups

[SVilgelm]

It would be great to be able to print one or several items for backup purposes.

An users should be able to select one or many items and print those items, including additional attributes.

[TheZ3ro]

Already discussed in #876

You can export your DB as CSV and print it without KeePassXC support

[SVilgelm]

@TheZ3ro exported csv doesn't contain additional attributes

[TheZ3ro]

@SVilgelm I forgot that, you are right. We should add a feature to export additional attributes to csv export then

Edit: didn't see the already opened issue

[micressor]

I understand the argument (CSV export is available). But a direct printout would prevent users from having to export their password database to the (possibly) non-encrypted hard disk.

From this point of view, I see a real benefit in making paper backups.

[droidmonkey]

Printing guarantees you are exporting the non-encrypted data to the notoriously bad print driver and spool. Not to mention some printers retain a history of printouts. I think we can support printing but its a larger undertaking then just saying: print(database) especially across platforms.

[wolframroesler]

Printing the CSV file isn't an option for me; it doesn't contain the attributes (well, that could be fixed easily), and it's rather ugly. Imagine having to search for one particular password in 20 pages of CSV print-out.

I'm working on an alternative solution, HTML export, which contains the same data as CSV export (albeit with attributes), formatted nicely and intended to be printed using the web browser. Don't use it if you don't trust your web browser, printer driver, or printer (as stated by @droidmonkey above). Details in #3277, my code is here: https://github.com/wolframroesler/keepassxc/tree/feature/htmlexport
Feedback is welcome.