I have been using the following script to generate tiff pages from pdf documents:

namespace WorkflowActivity.Scripting.SDKScript
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Data.SqlClient;
    using System.Text;
    using Laserfiche.RepositoryAccess;
    using Laserfiche.ClientAutomation;
    using System.Diagnostics;

    /// <summary>
    /// Provides one or more methods that can be run when the workflow scripting activity is performed.
    /// </summary>
    public class Script1 : RAScriptClass104
    {
        /// <summary>
        /// This method is run when the activity is performed.
        /// </summary>
        protected override void Execute()
        {
            //Variables to change for each setup
            string repositoryName = "RepositoryName";
            string ServerNameIp = "LaserficheServerName";
            string entryToBeConv = "EntryIDofEntryToBeConverted";
            int timeToWaitIfFails = 30000;

            //Script
            Process process = new Process();
            ProcessStartInfo startInfo = new ProcessStartInfo();
            startInfo.WindowStyle = ProcessWindowStyle.Hidden;
            startInfo.FileName = @"C:\Program Files (x86)\Laserfiche\Client\LF.exe";
            startInfo.Arguments = "-W -L\""+repositoryName+"\"";
            process.StartInfo = startInfo;
            process.Start();
            System.Threading.Thread.Sleep(5000);
            try
            {
                using (ClientManager lfclient = new ClientManager())
                {
                    IList<ClientInstance> OpenLFClients = lfclient.GetAllClientInstances();
                    ClientInstance singleLF = OpenLFClients[0];
                    LaunchOptions options = new LaunchOptions();
                    options.ServerName = ServerNameIp;
                    options.RepositoryName = repositoryName;
                    options.HiddenWindow = true;
                    MainWindow main;
                    singleLF = lfclient.LogIn(options, out main);
                    GeneratePagesOptions optionsPages = new GeneratePagesOptions();
                    optionsPages.ShowUI = false;
                    int entryid = Convert.ToInt32(GetTokenValue(entryToBeConv));
                    List<int> id =  new List<int>();
                    id.Add(entryid);
                    main.GeneratePages(id, optionsPages);
                    singleLF.Close(false);
                    SetTokenValue("Completed", true);
                }
            }
            catch(Exception ex)
            {
                System.Threading.Thread.Sleep(timeToWaitIfFails);
            }
            process.Kill();
        }
    }
}

Ordinarily, I'd use this in conjunction with "Create Entry" and "Move Pages" to create a new Tiff version of the document, then use "Delete Entry" to get rid of the PDF.

The question is, is there a way to delete the PDF version of the original document, leaving the Tiff version with the original Entry ID/metadata/etc?  I have a use case where this would be useful.  I know there must be a way to do this with an SDK script, since it's a functionality built into the client, like page generation, but I don't know how to script it.

Any ideas?