Script to place pdf file pages in indesign with its page size

problem solved by this script

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function main() {
// Suppress alert dialogs
app.scriptPreferences.userInteractionLevel = UserInteractionLevels.NEVER_INTERACT;

try {
// Create a dialog
var dialog = new Window("dialog", "Place PDF or InDesign Pages");

// Add a panel for file selection
var filePanel = dialog.add("panel", undefined, "Select PDF or InDesign File");
filePanel.orientation = "row";

// Add a button to select the file
var selectFileBtn = filePanel.add("button", undefined, "Select File");

// Add a static text to display the selected file path
var filePathText = filePanel.add("statictext", undefined, "No file selected");
filePathText.size = [300, 20];

// Add a panel for page range input
var rangePanel = dialog.add("panel", undefined, "Page Range (e.g., 1-5, 7, 9-10)");
var rangeInput = rangePanel.add("edittext", undefined, "");
rangeInput.size = [300, 20];

// Add an OK and Cancel button
dialog.add("button", undefined, "OK");
dialog.add("button", undefined, "Cancel");

// Handle the file selection button click
selectFileBtn.onClick = function () {
var file = File.openDialog("Select a PDF or InDesign file", "*.pdf;*.indd", false);
if (file) {
filePathText.text = file.fsName;
}
};

// Show the dialog and get the result
if (dialog.show() != 1) return;

// Get the selected file path
var filePath = filePathText.text;
if (filePath == "No file selected") return;

// Parse the page range
var pagesToPlace = parsePageRange(rangeInput.text);
if (!pagesToPlace.length) {
alert("Invalid page range.");
return;
}

var file = new File(filePath);
var fileType = file.name.split('.').pop().toLowerCase();

var doc = app.documents.add(); // Create a new document with default settings
var docPreferences = doc.documentPreferences;
docPreferences.facingPages = false;

// Handle the first page separately
var firstPage = doc.pages[0];
firstPage.marginPreferences.properties = { top: 0, bottom: 0, left: 0, right: 0 };

if (fileType === "pdf") {
placePDF(file, pagesToPlace, doc, firstPage);
} else if (fileType === "indd") {
placeINDD(file, pagesToPlace, doc);
} else {
alert("Unsupported file type.");
return;
}

// Clear and reset the first page content
firstPage = doc.pages[0];
firstPage.pageItems.everyItem().remove();
placeContentOnPage(file, 0, doc, firstPage, fileType);

} catch (e) {
alert("An error occurred: " + e.message);
} finally {
app.scriptPreferences.userInteractionLevel = UserInteractionLevels.INTERACT_WITH_ALL;
}
}

// Function to place content on a page
function placeContentOnPage(file, pageNumber, doc, page, fileType) {
if (fileType === "pdf") {
var pdfPlaceOptions = app.pdfPlacePreferences;
pdfPlaceOptions.pageNumber = pageNumber + 1;
var pdfPage = page.place(file)[0];
var pdfBounds = pdfPage.geometricBounds;
var pdfWidth = pdfBounds[3] - pdfBounds[1];
var pdfHeight = pdfBounds[2] - pdfBounds[0];

doc.documentPreferences.pageWidth = pdfWidth;
doc.documentPreferences.pageHeight = pdfHeight;

pdfPage.geometricBounds = [0, 0, pdfHeight, pdfWidth];
pdfPage.fit(FitOptions.FRAME_TO_CONTENT);
} else if (fileType === "indd") {
var inddDocument = app.open(file, false); // Open the InDesign file without showing the document
var inddPage = inddDocument.pages[pageNumber];
inddPage.pageItems.everyItem().duplicate(page);

var inddBounds = page.pageItems[0].geometricBounds;
var inddWidth = inddBounds[3] - inddBounds[1];
var inddHeight = inddBounds[2] - inddBounds[0];

doc.documentPreferences.pageWidth = inddWidth;
doc.documentPreferences.pageHeight = inddHeight;

page.pageItems.everyItem().geometricBounds = [0, 0, inddHeight, inddWidth];
page.pageItems.everyItem().fit(FitOptions.FRAME_TO_CONTENT);

inddDocument.close(SaveOptions.NO); // Close the InDesign document without saving
}
}

// Function to place PDF pages
function placePDF(pdfFile, pagesToPlace, doc, firstPage) {
for (var i = 0; i < pagesToPlace.length; i++) {
var page = i === 0 ? firstPage : doc.pages.add();
placeContentOnPage(pdfFile, pagesToPlace[i] - 1, doc, page, "pdf");
}
}

// Function to place InDesign pages
function placeINDD(inddFile, pagesToPlace, doc) {
for (var i = 0; i < pagesToPlace.length; i++) {
var page = i === 0 ? doc.pages[0] : doc.pages.add();
placeContentOnPage(inddFile, pagesToPlace[i] - 1, doc, page, "indd");
}
}

// Function to parse the page range input
function parsePageRange(rangeStr) {
var pages = [];
var ranges = rangeStr.split(/,\s*/);

for (var i = 0; i < ranges.length; i++) {
var range = ranges[i].split("-");
if (range.length == 1) {
pages.push(parseInt(range[0]));
} else if (range.length == 2) {
var start = parseInt(range[0]);
var end = parseInt(range[1]);
for (var j = start; j <= end; j++) {
pages.push(j);
}
}
}

return pages;
}

// Execute the main function
app.doScript(main, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.ENTIRE_SCRIPT, "Place PDF or InDesign Pages");