/**
 * creates a copy of the input file into the output file without the page to remove.
 * 
 * @param inputFile the path of the input document.
 * @param password the password of the input document.
 * @param outputFile the path of the output document.
 * @param pageToRemove the page to remove (0-based from 0 to GetPageCount() - 1)
 * @return true or false
 */
public static boolean removePage(String inputFile, String password, String outputFile, int pageToRemove) {
    try {
        //init the library and activate the license
        Global.Init(company, email, key);
   
        //open the input file
        Document mInputFile = new Document();
        if(mInputFile.Open(inputFile, password) == 0) {
            //create the output file
            Document mOutputDoc = new Document();
            if(mOutputDoc.Create(outputFile) == 0) {
                ImportContext mContext = mOutputDoc.ImportStart(mInputFile);
                if(mContext != null) { //import all pages except for the page to remove
                    int dstno = 0;
                    for(int i = 0; i < mInputFile.GetPageCount(); i++)
                    if(i != pageToRemove && mOutputDoc.ImportPage(mContext, i, dstno)) 
                        dstno++;
                    mContext.Destroy();
                }
                mOutputDoc.Save();
                mOutputDoc.Close();
            }
         }
         mInputFile.Close();
         return true;
    } catch (Exception e) {
         e.printStackTrace();
    }
    return false;
}