Is there a script to fit artboard to selected art width only?

Hi @JoergBrueggemannIHK 

you can find dozens of similar scripts here in the forum.

For example: https://community.adobe.com/t5/illustrator-discussions/selections-to-artboards/m-p/8324026#M152712

Please describe what exactly you want. The above mentioned thread may or may not be what you are looking for ...

Salut,

Suivant la sélection.

var docRef = app.activeDocument;
var index = docRef.artboards.getActiveArtboardIndex();
    pdtRedim(index,docRef);
function pdtRedim(idx,doc){
  var ab, rect0, rect;
      ab = doc.artboards[idx];
      rect0 = ab.artboardRect;
      doc.fitArtboardToSelectedArt(idx);
      rect = ab.artboardRect;
      rect = [rect[0],rect0[1],rect[2],rect0[3]]
      ab.artboardRect = rect;
}

de elleere

let me know if you get stuck.

par mail

to get you started, instead of using Fit Artboard to selected art, you should change the coordinates of the current artboard corners

to get the current coordinates of the first artboard

var idoc = app.activeDocument;

var ab0 = idoc.artboards[0];

var r = ab0.artboardRect;

var left = r[0];

var top = r[1];

var right = [2];

var bottom = r[3];

then, similarly you would get the bounds of your art, use left and right values to apply new coordinates on ab0.

let me know if you get stuck.