Illustrator util to copy layers content to artboards

layersToArtboards.jsx

// based on https://github.com/michaelchaize/appliness/blob/master/Illustrator-create-artboards/CreateArtboardsLayers.jsx

// Illustrator util to copy layers content to artboards

// Each layer must contain one single group
// It will name the artboard to match the layer name
// For each 20 layers it creates a new row
// Ensure the original artboard is placed in the top left corner

// TODO: translate the original artboard on the top left corner
// TODO: calculate the numbers of columns based on artboard dimensions and available width
// TODO: group layer contents before translate and ungroup after

var columns = 20;
var padding = 50;

if (app.documents.length > 0) {
  createArtboardPerLayer();
} else {
  Window.alert('You must open at least one document.');
}

function createArtboardPerLayer() {
  const doc = app.activeDocument;
  var totalLayers = doc.layers.length;
  // hold a reference to the original artboard position and dimentions
  const rect = doc.artboards[0].artboardRect;
  const artboardWidth = rect[2] - rect[0];
  const artboardHeight = rect[3] - rect[1];

  var layer, translateX, translateY, position, artboard, group = null;

  for (var i = 0; i < totalLayers; i++) {
    // reset selection
    doc.selection = null;

    layer = doc.layers[i];
    // skip hidden layers
    if (layer.visible === false) continue;

    // unlock the layer
    layer.locked = false;
    // select elements on the layer
    layer.hasSelectedArtwork = true;

    // calculate translations
    translateX = ((artboardWidth + padding) * (i % columns));
    translateY = -((artboardHeight - padding) * Math.floor(i / columns)) - artboardHeight;
    position = [
      rect[0] + translateX,
      rect[1] - translateY,
      rect[2] + translateX,
      rect[3] - translateY
    ]
    // create a new artboard at the correct position
    artboard = doc.artboards.add(position);
    // change the name based on the layer name
    artboard.name = layer.name;

    // translate selected layer
    group = layer.groupItems[0];
    group.translate(translateX, -translateY);
  }
}