is the object proportional to the artboard? if it is not, then do you need your object to be proportional? or can it be distorted to fit the artboard?

here you go, select one object before running, if your art has more than one object, make a group first.

#target Illustrator
 
//  script.name = fitObjectToArtboardBounds.jsx;
//  script.description = resizes selected object to fit exactly to Active Artboard Bounds;
//  script.required = select ONE object before running; CS4 & CS5 Only.
//  script.parent = carlos canto // 01/25/12;
//  script.elegant = false;
 
 
var idoc = app.activeDocument;
selec = idoc.selection;
if (selec.length==1)
          {
                    // get document bounds
                    var docw = idoc.width;
                    var doch = idoc.height;
                    var activeAB = idoc.artboards[idoc.artboards.getActiveArtboardIndex()]; // get active AB
 
 
                    docLeft = activeAB.artboardRect[0];
                    docTop = activeAB.artboardRect[1]; 
 
 
                    // get selection bounds
                    var sel = idoc.selection[0];
                    var selVB = sel.visibleBounds;
                    var selVw = selVB[2]-selVB[0];
                    var selVh = selVB[1]-selVB[3];
 
 
                    var selGB = sel.geometricBounds;
                    var selGw = selGB[2]-selGB[0];
                    var selGh = selGB[1]-selGB[3];
 
 
                    // get the difference between Visible & Geometric Bounds
                    var deltaX = selVw-selGw;
                    var deltaY = selVh-selGh;
 
 
                    sel.width = docw-deltaX; // width is Geometric width, so we need to make it smaller...to accomodate the visible portion.
                    sel.height = doch-deltaY;
                    sel.top = docTop; // Top is actually Visible top
                    sel.left = docLeft; // dito for Left
 
 
          }
else
          {
                    alert("select ONE object before running");
          }

you're welcome, glad to help

it is possible, but if the art is not proportional to the artboard it will only fit either the width or the height

Thanks to CarlosCanto for the original script, it was very a very helpful starting point to optimize one of our workflows. We customized it a bit to maintain the aspect ratio (just takes the greater of the width / height and scales proportionally to the artboard size), and also center up the object in the middle of the artboard once scaling is complete. I hope it is helpful to someone:

#target Illustrator

 

 

//  script.name = fitObjectToArtboardBounds.jsx;

//  script.description = resizes selected object to fit exactly to Active Artboard Bounds;

//  script.required = select ONE object before running; CS4 & CS5 Only.

//  script.parent = carlos canto // 01/25/12;

//  script.elegant = false;

 

 

 

 

var idoc = app.activeDocument;

selec = idoc.selection;

if (selec.length==1)

    {

        // get document bounds

        var docw = idoc.width;

        var doch = idoc.height;

        var activeAB = idoc.artboards[idoc.artboards.getActiveArtboardIndex()]; // get active AB

 

 

 

 

        docLeft = activeAB.artboardRect[0];

        docTop = activeAB.artboardRect[1];

 

 

 

 

        // get selection bounds

        var sel = idoc.selection[0];

        var selVB = sel.visibleBounds;

        var selVw = selVB[2]-selVB[0];

        var selVh = selVB[1]-selVB[3];

 

 

 

 

        var selGB = sel.geometricBounds;

        var selGw = selGB[2]-selGB[0];

        var selGh = selGB[1]-selGB[3];

 

 

 

 

        // get the difference between Visible & Geometric Bounds

        var deltaX = selVw-selGw;

        var deltaY = selVh-selGh;

 

 

        if (sel.width > sel.height) {

            var newWidth = docw-deltaX;

            var ratio = sel.width / newWidth;

            sel.width = newWidth; // width is Geometric width, so we need to make it smaller...to accomodate the visible portion.

            sel.height = sel.height * ratio;

        } else {

            var newHeight = doch-deltaY;

            var ratio = sel.height / newHeight;

            sel.height = newHeight;

            sel.width = sel.width / ratio;

        }

 

 

 

 

        sel.top = (doch / 2) - (sel.height / 2);

        sel.left = (docw / 2) - (sel.width / 2);

 

 

    }

    else

        {

            alert("select ONE object before running");

        }

 

you're welcome db

Hi Stan, I posted version 2 of this script over the regular forum. I does what you need.

http://forums.adobe.com/thread/1044937

ok, let me work on it...

...stay tuned, I'll work on it as soon as I have a chance...I haven't forgotten you.

I have an incling that it would have to follow:

// find landscape or portrait (width - margins > height - margins = landscape)  (Width - margin   < Height -margin = portrait)

// if portrait scale to height - margins with aspect ratio to desired height

// if landscape scale to width - margins with aspect ratio
// center object

no problem messing with my script, it works ok with objects taller than wider, check with objects wider than taller

Sorry to resurrect this however I am looking to add one step before auto resizing the art to the artboard which is to specify the artboard size. I have a bunch of art that I need to specify the artboard to be exactly 10cmx10cm prior to resizing the art to the artboard. How do i execute this from a Javascript? I found a few posts that show how to expand the artboard size slightly but not how to specify exact dimensions to resize to.

Thanks!