What i mean is that the picture youve editted needs to be saved somewhere right? Only in lightroom i can find the editted version, and i got to export it to get it out of LR for publication. So my question was where i can find the editted version instead of needing to export every single photo, while its also still in LR, this will take loads of more diskspace.
Again, as DJ wrote: they are nowhere because they don't exist. Lightroom can be considered a "metadata editor". Instead of editing the file (ie the RAW file), Lightroom saves all the adjustments you do in a XMP file linked to the original. That is called "non-destructive editing" because you don't actually edit the original file. Only on export, the adjustments are processed to the exported file. The power of LR is that you don't need to save edited files, but simply export them when you need them.
Adjustments made to your photos (but actually made to the XMP-file) can be reversed at any time.