Illustrator js 脚本 导入多页Pdf

main();

function main(){  
  var selectFile = File.openDialog ("选择 PDF...", "*.pdf");
  var pageCount = prompt('请输入总页数','');
  var pt = 72/25.4;
  var k=0;
  var spaceHorizontal = 400;
  var spaceVertical = 350;
  var rc =  getRC(pageCount);
  for(r=0;r<rc.r;r++){
    for(c=0;c<rc.c;c++){
      k++;
      var pdfOptions = app.preferences.PDFFileOptions;
      pdfOptions.pageToOpen = k;//此处选择置入页码
      var myPlacedItem = app.activeDocument.placedItems.add();
      myPlacedItem.file = selectFile;
      var w = myPlacedItem.width/pt;
      var h = myPlacedItem.height/pt;
      myPlacedItem.position = Array(r*(w+spaceHorizontal)*pt,c*(h+spaceVertical)*pt);
      myPlacedItem.embed(); //置入
    }
  }
}


function getRC(pageCount){
  var a = Math.round(Math.sqrt(pageCount));
  for(var i=0;i<10;i++){
    var b = pageCount/(a+i);
    if(b === Math.round(b)){
      return {r:b,c:pageCount/b}
    }   
  }
  return {r:1,c:pageCount}
}