tif2jpeg conversion. How to find tif or photoshop eps files which have layers or transparencies???

now better version which recognize channels/paths and bitmap mode which cant be saved as jpg...

// 2015, use it at your own risk; 

#target photoshop 

if (app.documents.length > 0) {

    var myDoc = app.activeDocument; 

}

//DEFINIRANJE MODA

var modSlike = app.activeDocument.mode;

if(modSlike == DocumentMode.CMYK){modSlike = "CMYK";}

if(modSlike == DocumentMode.RGB){modSlike = "RGB";}

if(modSlike == DocumentMode.GRAYSCALE){modSlike = "GRAYSCALE";}

if(modSlike == DocumentMode.BITMAP){modSlike = "BITMAP";}

var dodatnihKanala = 0;

if(modSlike == "CMYK"){dodatnihKanala = myDoc.channels.length - 4;}

if(modSlike == "RGB"){dodatnihKanala = myDoc.channels.length - 3;}

if(modSlike == "GRAYSCALE"){dodatnihKanala = myDoc.channels.length - 1;}

if(modSlike == "BITMAP"){dodatnihKanala = myDoc.channels.length - 1;}

if(modSlike == "BITMAP"){

    // Defines the active document that is opened

    var docRef = app.activeDocument;

    var imgName= docRef.name;

    imgName = imgName.substr(0, imgName.length -4);

    // Get name of Folder Path

    var docFolder = docRef.fullName.parent;

    var folderPath = docFolder.fsName;

    // Create a sub-folder called TIFBitmaps in the working folder

    var newPathFolder = new Folder( folderPath + "//TIFBitmaps/");

    newPathFolder.create();

    // Save Options for TIFBitmaps 

    var saveFile = new File( folderPath + "//TIFBitmaps/" + imgName + ".tif"); 

    SaveTIFF(saveFile); 

    function SaveTIFF(saveFile){ 

    tiffSaveOptions = new TiffSaveOptions();  

    tiffSaveOptions.embedColorProfile = false;  

    tiffSaveOptions.alphaChannels = true;  

    tiffSaveOptions.byteOrder = ByteOrder.IBM;  

    tiffSaveOptions.layers = true; 

    tiffSaveOptions.imageCompression = TIFFEncoding.TIFFLZW; 

    tiffSaveOptions.layerCompression = LayerCompression.ZIP; 

    tiffSaveOptions.spotColors = true; 

    tiffSaveOptions.transparency = true; 

    activeDocument.saveAs(saveFile, tiffSaveOptions, true, Extension.LOWERCASE);  

    }   

}else if (myDoc.layers.length == 1 && myDoc.layers[0].isBackgroundLayer == true && dodatnihKanala == 0) { 

    // Defines the active document that is opened

    var docRef = app.activeDocument;

    var imgName= docRef.name;

    imgName = imgName.substr(0, imgName.length -4);

    // Get name of Folder Path

    var docFolder = docRef.fullName.parent;

    var folderPath = docFolder.fsName;

    // Create a sub-folder called PDFs in the working folder

    var newPathFolder = new Folder( folderPath + "//JPGs/");

    newPathFolder.create();

    // Save Options for JPGs 

    var saveFile = new File( folderPath + "//JPGs/" + imgName + ".jpg"); 

    SaveJPEG(saveFile, 10); 

    function SaveJPEG(saveFile, jpegQuality){ 

        jpgSaveOptions = new JPEGSaveOptions(); 

        jpgSaveOptions.embedColorProfile = false; 

        jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE; 

        jpgSaveOptions.matte = MatteType.NONE; 

        jpgSaveOptions.quality = jpegQuality; // 10

        activeDocument.saveAs(saveFile, jpgSaveOptions, true,Extension.LOWERCASE);

    }

} else { 

    // Defines the active document that is opened

    var docRef = app.activeDocument;

    var imgName= docRef.name;

    imgName = imgName.substr(0, imgName.length -4);

    // Get name of Folder Path

    var docFolder = docRef.fullName.parent;

    var folderPath = docFolder.fsName;

    // Create a sub-folder called PDFs in the working folder

    var newPathFolder = new Folder( folderPath + "//PDFs/");

    newPathFolder.create();

    // Save Options for PDFs

    pdfFile = new File( folderPath + "//PDFs/" + imgName + "_photoshop.pdf")

    pdfSaveOptions = new PDFSaveOptions()

    pdfSaveOptions.layers = true;

    pdfSaveOptions.embedColorProfile = false;

    pdfSaveOptions.PDFStandard = PDFStandard.NONE;

    pdfSaveOptions.PDFCompatibility = PDFCompatibility.PDF17;

    pdfSaveOptions.preserveEditing=true;

    pdfSaveOptions.embedThumbnail=true;

    pdfSaveOptions.optimizeForWeb = true;

    pdfSaveOptions.downSample = PDFResample.NONE;

    pdfSaveOptions.encoding = PDFEncoding.PDFZIP;

    pdfSaveOptions.colorConversion = false;

    pdfSaveOptions.profileInclusionPolicy = false;

    pdfSaveOptions.alphaChannels = true;

    // set to NONE to allow PDF Security Options. Permission is for Printing only. A common password

    // needs to be added as soon as the file is saved without typing it in all the time

    docRef.saveAs(pdfFile, pdfSaveOptions, true, Extension.LOWERCASE);

    docRef.close(SaveOptions.DONOTSAVECHANGES);

}