Prepare PrawnPDF document for Zund CutCenter with layers

Prawn2ZundPDF-FOLDER.jsx

#target Illustrator
// script.name = Prawn2ZundPDF-FOLDER.jsx;
// script.description = cleans and organizes single layer sticker PDFs for ZUND cut center;
// script.parent = Pablo D. Camaloon // 22/03/2017
// script.elegant = false?

/**
* Prerequisites:
* Single layer PDF with Register and Cut paths on a single layer.
* All elements are RGB. Register circles have path+fill; Cutlines only have stroke.
* Diecut: #EC008C; KissCut: #00AEEF; Register: #000000;
* Register dots are the only CompoundPathItems in the document
*/

var destFolder, sourceFolder, files, fileType, sourceDoc, targetFile, pdfSaveOpts;

sourceFolder = Folder.selectDialog( 'Select the folder with PDFs to process');
if ( sourceFolder != null ) {
  files = new Array();
  files = sourceFolder.getFiles( "*.pdf" );
  if ( files.length > 0 ) {
    // Get the destination to save the files
    //destFolder = Folder.selectDialog( 'Select the folder where you want to save  files.', '~' );
    destFolder = sourceFolder;
    for ( i = 0; i < files.length; i++ ) {
      var docRef = app.open(files[i]); // returns the document object
      main(docRef);
    };
  } else {
    alert( 'No matching files found' );
  }
}

function main(docRef) {
  // 1) remove all pathItems that are clipping masks
  var clippingCount = 0;
  for (i = docRef.pageItems.length - 1; i >= 0; i--) {
    if (docRef.pageItems[i].clipping == true) {
      docRef.pageItems[i].remove();
    }
  };

  // 2) ungroup all existing layers
  if (docRef.groupItems.length) {
    for (var i = 0; i < docRef.layers.length; i++) ungroup(docRef.layers[i]);
  };

  // 3) create spot colors swatches
  addSpot('DieCut', 0, 100, 0, 0); //thru-cuts are pure magenta
  addSpot('KissCut', 100, 0, 0, 0); //kiss-cuts are pure cyan

  // 4) create layers for all cuts and register
  docRef.layers[0].name = "Artwork"
  var dieCutLayer = docRef.layers.add();
    dieCutLayer.name = "Register";
    dieCutLayer.printable = true;
  var kissCutLayer = docRef.layers.add();
    kissCutLayer.name = "KissCut";
    kissCutLayer.printable = false;
  var dieCutLayer = docRef.layers.add();
    dieCutLayer.name = "DieCut";
    dieCutLayer.printable = false;
  docRef.layers["Register"].move( docRef, ElementPlacement.PLACEATBEGINNING );
  app.redraw();

  // 5) replace all RGB cut strokes with spot colors and move to correct layer
  for (var i = 0; i < docRef.pathItems.length; i++) {
    var pathArt = docRef.pathItems[i];
    replaceStrokeRGBwithSpot(pathArt, 0, 174, 239, 'KissCut');
    replaceStrokeRGBwithSpot(pathArt, 236, 0, 140, 'DieCut');
  };
  moveRegisterDots();
  app.redraw();

  var saveOptions = new IllustratorSaveOptions();
  var aiDoc = new File(destFolder);
  saveOptions.compatibility = Compatibility.ILLUSTRATOR15;
  saveOptions.embedICCProfile = true;
  docRef.saveAs( aiDoc, saveOptions );;
  docRef.close();
}

function addSpot(name, c, m, y, k) {
  try {
    swatch = app.activeDocument.swatches[name]; // if swatch exists....
    addSpot(name += '1', c, m, y, k); // ...add 1 to swatch name
  } catch (e) {
    var newSpot = app.activeDocument.spots.add();
    newSpot.name = name;

    var newColor = new CMYKColor();
    newColor.cyan = c;
    newColor.magenta = m;
    newColor.yellow = y;
    newColor.black = k;

    newSpot.colorType = ColorModel.SPOT;
    newSpot.color = newColor;
    var newSpotColor = new SpotColor();
    newSpotColor.spot = newSpot;
  }
};
function replaceStrokeRGBwithSpot (pathArt, r, g, b, spotName){
  var selectionArray = [];
  if (pathArt.strokeColor.red == r
    && pathArt.strokeColor.green == g
    && pathArt.strokeColor.blue == b) {
      pathArt.filled = false;
      pathArt.stroked = true;
      pathArt.strokeColor = docRef.swatches.getByName(spotName).color;
      pathArt.strokeWidth = 0.25;
      pathArt.move(docRef.layers[spotName], ElementPlacement.PLACEATEND)
  }
};

function moveRegisterDots() {
  var items, i = 0,
    n = 0,
    item, color, selectionArray = [];
  items = docRef.compoundPathItems;
  n = items.length;
  if (items.length == 0) {
    //alert("No images found");
    return;
  }
  for (i = 0; i < n; i++) {
    item = items[i];
    item.move(docRef.layers['Register'], ElementPlacement.PLACEATEND);
  }
}

/**
 *	all group to ungroup v.1 - CS, CS2,CS3,CS4
 *
 *	Author: Nokcha (netbluew@gmail.com)
 *
 *	This Script  is Can be easily  ungrouping to all group items in the Document.
 *
 *
 * JS code (c) copyright: Jiwoong Song ( netbluew@nate.com )
 * Copyright (c) 2009 netbluew@nate.com
 * All rights reserved.
 *
 * This code is derived from software contributed to or originating on wundes.com
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by netbluew@nate.com
 *        and its contributors.
 * 4. Neither the name of wundes.com nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY WUNDES.COM AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

function getChildAll(obj) {
  var childsArr = new Array();
  for (var i = 0; i < obj.pageItems.length; i++) childsArr.push(obj.pageItems[i]);
  return childsArr;
}
function ungroup(obj) {
  var elements = getChildAll(obj);
  if (elements.length < 1) {
    obj.remove();
    return;
  } else {
    for (var i = 0; i < elements.length; i++) {
      try {
        if (elements[i].parent.typename != "Layer") elements[i].moveBefore(obj);
        if (elements[i].typename == "GroupItem") ungroup(elements[i]);
      } catch (e) {}
    }
  }
}