Save an unopened document

Hello everyone,

I have this script: I select a folder, open only tif and psd in it (subfolders included), then if a file contains a substring in it, it changes the name (removes the substring), then it saves as tif with the new name, saves as jpg 5 with the new name, then deletes the original file.

my problem is near the bottom, lines 64 and 74. I have this 2 functions to save tiff and save jpeg that I use a lot, and this is the first time I tried to save tiff or jpeg while the document isn't open. is it possible to save tiff or jpeg when the document is not open?

#target photoshop
// Select folder dialog, open only tif and psd, if contains the substring: change the name: save tif, save jpg 5, then delete the file.
var theFolder = Folder.selectDialog("select folder");
var fileandfolderAr = scanSubFolders(theFolder,/\.(tif|psd)$/i);                //var fileandfolderAr = scanSubFolders(topFolder,/\.(jpg|tif|psd|bmp|gif|png|)$/i);
var fileList = fileandfolderAr[0];
var substring = "-temp";
for (var a = 0 ;a < fileList.length; a++)
{
var Name = fileList.name;
if (Name.match(substring))
{        
            
        Name = Name.replace(substring,'');
    
        var savePath = fileList.path;       
        var saveName = File(savePath + "/" + Name)  
        SaveTIFF(saveName);
        SaveJPEG(saveName,5); 
        fileList.remove();
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
function scanSubFolders(tFolder, mask) { // folder object, RegExp or string
    var sFolders = new Array();
    var allFiles = new Array();
    sFolders[0] = tFolder;
    for (var j = 0; j < sFolders.length; j++){ // loop through folders            
        var procFiles = sFolders.getFiles();
        for (var i=0;i<procFiles.length;i++){ // loop through this folder contents
            if (procFiles instanceof File ){
                if(mask==undefined) allFiles.push(procFiles);// if no search mask collect all files
                if (procFiles.fullName.search(mask) != -1) allFiles.push(procFiles); // otherwise only those that match mask
        }else if (procFiles instanceof Folder){
            sFolders.push(procFiles);// store the subfolder
            scanSubFolders(procFiles, mask);// search the subfolder
         }
      }
   }
   return [allFiles,sFolders];
};
function SaveTIFF(saveFile){  
tiffSaveOptions = new TiffSaveOptions();   
tiffSaveOptions.embedColorProfile = true;   
tiffSaveOptions.alphaChannels = true;   
tiffSaveOptions.layers = true;  
tiffSaveOptions.imageCompression = TIFFEncoding.NONE;    
activeDocument.saveAs(saveFile, tiffSaveOptions, true, Extension.LOWERCASE);   
}  
function SaveJPEG(saveFile, jpegQuality){     
    jpgSaveOptions = new JPEGSaveOptions();     
    jpgSaveOptions.embedColorProfile = true;     
    jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;     
    jpgSaveOptions.matte = MatteType.NONE;     
    jpgSaveOptions.quality = jpegQuality;      
    activeDocument.saveAs(saveFile, jpgSaveOptions, true,Extension.LOWERCASE);      
    };