Ok, I understood the problem. Qt clipboard cannot manage the mime type "application/pdf" correctly, so it converts it to "application/x-qt-image" and apparently does a lousy job with the resolution. There is nothing one can then do on the TeXmacs side...
Best Max > On 23. Oct 2020, at 12:36, TeXmacs <texm...@lix.polytechnique.fr> wrote: > > I don't know what Preview does when copying selections to the Clipboard. > I suspect that this is a problem on the Preview side. > > Best wishes, --Joris > > > On Fri, Oct 23, 2020 at 09:38:54AM +0200, Massimiliano Gubinelli wrote: >> I was coping selected parts of a PDF (copied via the rectangular selection >> tool). I was not aiming to copy content, but only pictures. The >> observation is that the paste give an image with not the same "crispness" >> (resolution?) of the original. If I create a new document with the >> selected are (in Preview) and then Instert the new document, the >> resolution is correct. So there are workaround but I wonder why the >> resolution is lowered in the copy, somewhere there should be some hard >> coded value which is not appropriate. >> Best >> Max >> >> On 22. Oct 2020, at 18:52, TeXmacs <[1]texm...@lix.polytechnique.fr> >> wrote: >> On Fri, Oct 23, 2020 at 12:40:57AM +0800, Darcy Shen via Texmacs-dev >> wrote: >> >> Let us fix it before the release of TeXmacs 1.99.14. >> >> I don't consider it to be very urgent that images can be copied from Pdf >> files, >> although this would be nice of course. Copying from Pdf files does not >> yield >> very nice results anyway; formulas are a mess, for instance. >> >> Copying and pasting from Html pages is another matter; this should work >> better, >> because the format is already structured. In this case, the main >> trouble >> comes from modern Html that may heavily rely on Css. >> >> Best wishes, --Joris >> >> ---- On Thu, 2020-10-22 23:38:50 >> TeXmacs<[2]texm...@lix.polytechnique.fr> >> wrote ---- >> >> On Thu, Oct 22, 2020 at 10:57:04AM +0200, Massimiliano Gubinelli >> wrote: >> >> I just noted that cut and paste of parts of PDF documents (e.g. from >> >> the >> >> Preview app) to TeXmacs produce inserted images with a lower (and >> >> quite >> >> bad) resolution. Is this a known bug? >> >> I don't manage to copy and paste images at all. >> But ordinary text does copy and paste well. >> >> Best wishes, --Joris >> >> _______________________________________________ >> Texmacs-dev mailing list >> [1][3]Texmacs-dev@gnu.org >> [2][4]https://lists.gnu.org/mailman/listinfo/texmacs-dev >> >> References >> >> Visible links >> 1. [5]mailto:Texmacs-dev@gnu.org >> 2. [6]https://lists.gnu.org/mailman/listinfo/texmacs-dev >> /usr/bin/xdg-open: line 402: htmlview: command not found >> /usr/bin/xdg-open: line 402: firefox: command not found >> /usr/bin/xdg-open: line 402: mozilla: command not found >> /usr/bin/xdg-open: line 402: netscape: command not found >> >> _______________________________________________ >> Texmacs-dev mailing list >> [7]Texmacs-dev@gnu.org >> [8]https://lists.gnu.org/mailman/listinfo/texmacs-dev >> >> _______________________________________________ >> Texmacs-dev mailing list >> [9]Texmacs-dev@gnu.org >> [10]https://lists.gnu.org/mailman/listinfo/texmacs-dev >> >> References >> >> Visible links >> 1. mailto:texm...@lix.polytechnique.fr >> 2. mailto:texm...@lix.polytechnique.fr >> 3. mailto:Texmacs-dev@gnu.org >> 4. https://lists.gnu.org/mailman/listinfo/texmacs-dev >> 5. mailto:Texmacs-dev@gnu.org >> 6. https://lists.gnu.org/mailman/listinfo/texmacs-dev >> 7. mailto:Texmacs-dev@gnu.org >> 8. https://lists.gnu.org/mailman/listinfo/texmacs-dev >> 9. mailto:Texmacs-dev@gnu.org >> 10. https://lists.gnu.org/mailman/listinfo/texmacs-dev >> /usr/bin/xdg-open: line 402: htmlview: command not found >> /usr/bin/xdg-open: line 402: firefox: command not found >> /usr/bin/xdg-open: line 402: mozilla: command not found >> /usr/bin/xdg-open: line 402: netscape: command not found > >> _______________________________________________ >> Texmacs-dev mailing list >> Texmacs-dev@gnu.org >> https://lists.gnu.org/mailman/listinfo/texmacs-dev > > > _______________________________________________ > Texmacs-dev mailing list > Texmacs-dev@gnu.org > https://lists.gnu.org/mailman/listinfo/texmacs-dev _______________________________________________ Texmacs-dev mailing list Texmacs-dev@gnu.org https://lists.gnu.org/mailman/listinfo/texmacs-dev
