[okular] [Bug 377456] Please add "eraser"

[Yuri Chornoivan]

https://bugs.kde.org/show_bug.cgi?id=377456

--- Comment #7 from Yuri Chornoivan <yurchor at ukr.net> ---
(In reply to yousifjkadom from comment #6)
> @Nate Graham
> Dear I have 2 issues with this:
> 
> 1) I tried the Presentation mode & examine the action of erasers on it. But
> there is a problem (regardless eraser): the issue is that ALL drawings that
> I making during presentation mode, ALL of them will disappearing just by
> exit the presentation mode even if I did not use eraser ! So, is this a bug
> ? If yes, then inform me so that I will open a new bug.

No, it's not a bug. Just a useful tool for presentation. You show things, you
draw arrows, underline things, erase them if needed, then finish your
presentation. And voila. You are ready for another one with the untouched
original slides.

> 2) you said "However you can add an opaque annotation to cover up content
> (for example to redact sensitive text) which is different and already
> supported."
> 
> This is totally not a reduction at all ! If I follow this & cover what I
> like to erase by opaque annotation such as free hand or highlight, then such
> annotation(s) will appear in "Annotation" section of left side bar & any one
> can remove them & by this unhide the underlining text or picture. So, what
> you suggested is NEVER be possible to considered a reduction (secure eraser).

Just use "File -> Print (Ctrl+P)", choose PDF printer, go to "Options -> PDF
options", and check the "Convert to bitmap" item if you want to hide something
and do not allow to edit it anymore. No need to get the things overcomplicated.

> For point (2) I asked you to re-open this issue, unless there is a hidden
> option for reduction that I do not know about it & in the last case please
> inform me by such reduction option & where it found within Okular ! If
> Okular really contain a reduction option then it is something very great.
> But by reduction there must no any possibility to discovered the reduced
> text or image at all & by no any way someone can remove the reduction.

Please give us your use case. As it was stated above, Okular is a document
viewer/annotation tool and not an editor. If you want to edit PDF just use
Inkscape or LibreOffice Draw.

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