Mass combine a bunch of indd files into one

Combine Multiple Files.jsx

// DESCRIPTION: Mass combine a bunch of indd files into one.
// 6 July 2013
// edited by senki on 2015-06-21
// Added ability to move all pages not just first

// INSTRUCTIONS
// Put all the files you want to combine into one document in a folder, named in the order
// you want them to appear in the book (e.g. "001.indd", "002.indd", etc. or something) so
// they appear correctly when sorted by name in finder/explorer.

#target indesign


// set the destination document as the active document.
var destination_doc = app.activeDocument;

// select the source folder
var sourceFolder = Folder.selectDialog("Select a folder with source InDesign files.");

// if we're not in the source folder, stop running the script.
if ( !sourceFolder ) {
	exit(0);
}

// set file list and run through each file. Sorting them alphanumerically.
var fileList = sourceFolder.getFiles();
fileList.sort();

// the original interaction and warning settings of the application
var oldInteractionPrefs = app.scriptPreferences.userInteractionLevel;

// prevent interaction and warnings from interrupting script
app.scriptPreferences.userInteractionLevel = UserInteractionLevels.NEVER_INTERACT;

// run through each file
for ( var i = 0; i < fileList.length; i++ ) {
	var source_file = fileList[i];
	// making sure it's an indesign file...
	if ( source_file instanceof File && source_file.name.match(/\.indd$/i)) {
		app.open(source_file);
		var source_doc = app.open(source_file);

		// walk the document's pages
		for (var j = 0; j < source_doc.pages.length; j++) {

			var sourcePages = source_doc.pages.item(j);
			// break the master page items so they can be moved onto the new document.
			var masterItems = sourcePages.masterPageItems;
			if ( masterItems.length > 0 ) {
				for ( var k=0; k<masterItems.length; k++ ) {
					masterItems[k].override(sourcePages);
				}
			}
			// removing the applied master (this can mess up some files if not done)
			sourcePages.appliedMaster=null;
			// duplicating it in the original file (due to errors) and them moving it to
			// the destination document.
			sourcePages.duplicate(LocationOptions.AFTER, source_doc.pages.item(j));
			sourcePages.move(LocationOptions.AFTER, destination_doc.pages.item(-1));
			// closes the file that was opened without saving (to avoid memory problems)
		}

		app.activeDocument.close(SaveOptions.NO);
	}
}

// reset interactions to original settings
app.scriptPreferences.userInteractionLevel = oldInteractionPrefs;