该脚本试图：
- 新建一个文件夹
- 扫描 InDesign 文档中的所有图像
- 在 Photoshop 中将所有图像转换为灰度
- 从 Photoshop 将新的灰度图像保存在新文件夹中
在 Photoshop 中将图像转换为灰度需要使用BridgeTalk对象，这允许 InDesign 和 Photoshop 之间进行通信（BridgeTalk对象的使用似乎是 Ajax 的一种形式）。
到目前为止，我几乎可以正常工作，因为创建了一个新文件夹，并且 InDesign 似乎确实通过BridgeTalk. 但是当打开 Photoshop 时，什么也没有发生——没有新的图像被保存，我不确定灰度转换是否正在发生......
这是我的代码：
#target "InDesign"
var inDesignDocument = app.activeDocument;
var newFolder = createFolder(inDesignDocument); // if subdirectory images DNE, create this folder with the function below
sendImagesToPhotoshop(inDesignDocument, newFolder);
//---------------------------------------------------------------------------------------------------------------
function createFolder(doc)
{
try
{
/*
* type-casting the filePath property (of type object) into a String type;
* must be a String type to concatenate with the subdirectory variable (also of type String)
*/
var docPath = String(doc.filePath);
var subdirectory = "/BLACK AND WHITE IMAGES";
}
catch(e)
{
alert(e.message);
exit();
}
var imagesFolder = docPath + subdirectory; // concatenating the two variables
if(!Folder(imagesFolder).exists)
{
Folder(imagesFolder).create();
}
return imagesFolder; // for instantiation outside of this function
} // end of function createFolder
//---------------------------------------------------------------------------------------------------------------
function sendImagesToPhotoshop(doc, folder)
{
var imgs = doc.allGraphics;
var fileName = "";
var img = "";
var imgType = "";
for(var i = 0; i < imgs.length; i++)
{
if(imgs[i].itemLink != null)
{
fileName = imgs[i].itemLink.name;
img = new File(folder + "/" + fileName); // each image instantiated here
imgType = imgs[i].imageTypeName; // image type is determined here (.tif, .jpg, .png, etc..)
alert("The file \"" + fileName + "\"\n\tis a " + imgType + " file.");
// each image exported to the new folder here, by file type
switch(imgType)
{
case "GIF":
alert("This script cannot convert and export the GIF file:\n\t" + fileName + " !");
break;
case "JPG":
case "EPS":
case "PNG":
case "TIFF":
createBridgeTalkMessage(folder);
break;
default:
alert("\tUnlisted image type: " + imgType + "!\nAdd this type to the switch statement.");
break;
} // end of switch statement
} // end of if statement
} // end of for loop
} // end of function sendImagesToPhotoshop
//---------------------------------------------------------------------------------------------------------------
function createBridgeTalkMessage(imagesFolder)
{
var bt = new BridgeTalk();
bt.target = "photoshop";
bt.body = saveNewImageInPhotoshop.toSource() + "(" + imagesFolder.toSource() + ");";
bt.onError = function(e)
{
alert("Error: " + e.body);
}
bt.onResult = function(resObj){};
bt.send();
}// end of function createBridgeTalkMessage
//---------------------------------------------------------------------------------------------------------------
// called from function createBridgeTalkMessage
function saveNewImageInPhotoshop(imagePath)
{
var photoshopDoc = "";
app.displayDialogs = DialogModes.NO; // Photoshop statement, prevents status alerts from interrupting
photoshopDoc.changeMode(ChangeMode.GRAYSCALE); // convert image to GRAYSCALE
photoshopDoc.saveAs(new File(imagePath) );
photoshopDoc.close(SaveOptions.DONOTSAVECHANGES);
} // end of function saveNewImageInPhotoshop
这是基于 Kasyan Servetsky 的工作，可在此处找到： http ://forums.adobe.com/message/3817782