What does converting to trusted jpeg actually do?

and any downside to doing a batch conversion re: which applications might be able to open them etc?

Alternatively PDFs may be converted to trusted PDFs by right clicking on them. This converts the PDF’s text to graphic form, so the disk size these documents take up will increase.

P.S. The first article should actually have a link to the second one, but it doesn’t currently.

yes, thats PDFs, I asked about Jpegs specifically thanks

Here is the source code: https://github.com/QubesOS/qubes-app-linux-img-converter. You can get the entry point which use notably this https://github.com/QubesOS/qubes-linux-utils/tree/master/imgconverter.

well thanks but I can’t read source code.

just a simple answer , was what was hoping for…

Hi @Clodius,

The man page say:


   qvm-convert-img  modifies image files by processing them using the con‐
   vert tool from imagemagick. Processing is done in  a  disposable  qube,
   and  the  converted  file stored in output-file Conversion is done to a
   very simple RGBA representation of the  image.   Any  metadata  in  the
   original file is removed.

So the image displayed in a fake display and each pixels cloned (like a screenshot of the displayed image), and all metadata removed.

The same is also available for PDF, an article from Joanna Rutkowska explains it.


oh, it has a man page…

so is there a downside if I did some Batch conversion of all my images

Is there a nautilus, right-click, option or package instead of a terminal tool? I use the qvm-convert-img and qvm-convert-pdf sparingly, like untrusted sources, since the quality of the converted pdf isn’t the greatest and sometimes you can’t do text searches on images.