Script to scale up Illustrator Assets

Illustrator_Scale_Artboard_and_Artwork.jsx

#target Illustrator
/*
 Revision-1
 Author: Shivendra Agarwal
 Year: 2017
 Title: Script to scale-up artwork and artboard above 15 Mpixel
*/

if ( app.documents.length > 0 ) 
alert("ERROR: \n Close all documents before running this script." );

requiredABarea = prompt( 'Enter a minimum desired artboard area in pixels.', '15000000', 'Select artboard area');
dir = Folder.selectDialog("Select root folder containing Illustrator assets.");	
// If dir variable return null, user most likely canceled the dialog or
// the input folder and it subfolders don't contain any .ai files.
if ( dir != null ) 
{
	// returns an array of file paths in the selected folder.
	files = GetFiles( dir );
	alert ('Total ' + files.length + ' files (AI/EPS) will be processed.', 'Alert');
	for (var f = 0; f< files.length; f++)
	{
		var doc = app.open(files[f]);
		resizeArtboardAndArwork();
		doc.close(SaveOptions.SAVECHANGES);
	}
}

function resizeArtboardAndArwork()
{
	activeDoc = app.activeDocument;
	if (activeDoc.artboards.length > 1)
		alert ('Script is not designed for multiple artboard. \nWorking on active artboard.', 'Alert');
	abActive   = activeDoc.artboards[ activeDoc.artboards.getActiveArtboardIndex() ];
	
	//activeDoc.fitArtboardToSelectedArt(activeDoc.artboards.getActiveArtboardIndex());
	
	var abProps    = getArtboardBounds(abActive);
	scale	   = findRequiredScale(abProps);
	abXoffset = -1* (abProps.left + abProps.width/2);
	abYoffset = -1* (abProps.top - abProps.height/2);
	
	if (scale  > 1)
	{	
		// select all items
		var items = activeDoc.pageItems;
		for(var i = 0;i < items.length;i++)
		{
			items[i].selected = true;
		}
		
		var selection = activeDoc.selection;
		
		// Translate artwork to bring artboard-center at document center, and then apply scale.
		if (selection.length > 0) 
		{
			for (i = 0; i < selection.length; i++) 
			{
				selection[i].translate (abXoffset, abYoffset, true, true, true, true);
				selection[i].resize (scale*100, scale*100, true, true, true, true, scale*100, Transformation.DOCUMENTORIGIN);
			}
		} 
		

		var scaledArtboardRect = newRect(-abProps.width/2  * scale, -abProps.height/2  * scale, abProps.width * scale,abProps.height * scale);
		var newAB = activeDoc.artboards.add(scaledArtboardRect);
		abActive.remove();
		//activeDoc.fitArtboardToSelectedArt(activeDoc.artboards.getActiveArtboardIndex());
		app.executeMenuCommand("fitall");
	}
}


function findRequiredScale(props) 
{
	requiredABarea = 15000000; //px
	currentABarea = props.width * props.height;
	scale = (Math.sqrt(requiredABarea/ currentABarea));
	
	if (scale >1)
	return scale;
	else
	return 1;
}

// Artboard bounds helper (used above):
function getArtboardBounds(artboard) {

  var bounds = artboard.artboardRect,

      left   = bounds[0],
      top    = bounds[1],
      right  = bounds[2],
      bottom = bounds[3],

      width  = right - left,
      height = top - bottom,

      props  = {
        left   : left,
        top    : top,
        width  : width,
        height : height
      };

  return props;
}

function newRect(x, y, width, height) 
{
    var l = 0;
    var t = 1;
    var r = 2;
    var b = 3;
 
    var rect = [];
 
    rect[l] = x;
    rect[t] = -y;
    rect[r] = width + x;
    rect[b] = -(height - rect[t]);
 
    return rect;
};

function GetFiles( folder ) 
{
	var i, item,
		// Array to store the files in...
		files = [],
		// Get files...
		items = folder.getFiles();

	// Loop through all files in the given folder
	for ( i = 0; i < items.length; i++ ) 
	{
		item = items[i];
		// Find .ai files
		var aifileformat = item.name.match(/\.ai$/i);
		var epsfileformat = item.name.match(/\.eps$/i);
		// If item is a folder, check the folder for files.
		if ( item instanceof Folder ) 
		{
			// Combine existing array with files found in the folder
			files = files.concat( GetFiles( item ) );
		}
		// If the item is a file, push it to the array.
		else if ( item instanceof File && (epsfileformat || aifileformat) ) 
		{
			// Push files to the array
			files.push( item );
		}
	}
	return files;
}

Not sure how to use this script exactly. By default, it has 15000000 as a pixel size. When I put in 56 it outputs 3872.98 px. This is not what I want. I want 56 px x 56 px. What am I not understanding? Thanks.

Me too!

Really good script. Thanks !

This script looks great, but I'm also unclear how to get the correct dimensions; I'm getting seemingly random results too. I'm trying to resize my artboards to 1920 pixels wide, but they end up 5163.9778 pixels wide after running this script.

Not sure how to use this script exactly. By default, it has 15000000 as a pixel size. When I put in 56 it outputs 3872.98 px. This is not what I want. I want 56 px x 56 px. What am I not understanding? Thanks.

Me too!

Looks like you have to edit the script.

findRequiredScale(props)

needs another argument, eg userInput to get the user-defined value from the prompt. Currently this function is just defining the required artboard area to be a default value. The user input value never gets captured.

fire script my friend. cheers.

👋 For others finding this, I've posted up a modified version of it here.

This modified version will:

• Prompt you to enter a new artboard dimension (in width & height pixel values)
• Resize the current open AI file's artboard and all art to that size
• Will handle hidden & locked layers

It doesn't batch-process an entire folder or let you pick files – it solely looks at the doc you're working in.

A bit more user-friendly imo, but it heavily relies on the work @shivendra14 put together here.

👋 For others finding this, I've posted up a modified version of it here.

This modified version will:

• Prompt you to enter a new artboard dimension (in width & height pixel values)
• Resize the current open AI file's artboard and all art to that size
• Will handle hidden & locked layers

It doesn't batch-process an entire folder or let you pick files – it solely looks at the doc you're working in.

A bit more user-friendly imo, but it heavily relies on the work @shivendra14 put together here.

Is it possible to make a version of this script for Photoshop?