FreeNX is a system that allows you to access your desktop from another machine over the internet. You can use this to login graphically to your desktop from a remote location. One example of its use would be to have a FreeNX server set up on your home computer, and graphically logging in to the home computer from your work computer, using a FreeNX client.
It’s Open Source, secure (SSH based), fast and versatile!
NX means “Next Generation Remote Display“, is an exciting new technology for remote display. It provides near local speed application responsiveness over high latency, low bandwidth links. The core libraries for NX are provided by NoMachine under the GPL. FreeNX is a GPL implementation of the NX Server and NX Client Components.

Here is a easy tutorial that I used to install FreeNX and NX Client.
1.Add the repository in the source file(/etc/apt/sources.list)
# Ubuntu FreeNX Repository for Intrepid
deb http://ppa.launchpad.net/marceloshima/ubuntu intrepid main
deb-src http://ppa.launchpad.net/marceloshima/ubuntu intrepid main
deb http://ppa.launchpad.net/freenx-team/ubuntu intrepid main
deb-src http://ppa.launchpad.net/freenx-team/ubuntu intrepid main
2>update and install freeNX
apt-get update
apt-get install freenx-server

3.install NX client,
windows user, please download NX Client for Windows
ubuntu/Linux user, use nxclient
apt-get insall nxclient

Reference,
https://help.ubuntu.com/community/FreeNX
FreeNX: Free Software (GPL) Implementation of the NX Server
Installing FreeNX in Ubuntu 8.04 Hardy & 8.10 Intrepid Ibex

P.S. NX vs VNC
NX is much faster than VNC. However, with NX you cannot share a desktop. You can only create new
sessions. That’s why we still use VNC, e.g. for training purposes.
NX bases on X windows, so there is no NX server solution for windows.

Create software that coverts a PDF document in to a set of pages that can be turned like a book / magazine. I would like to include the zoom, print and a download function for the PDF, but also enable the addition of links from a defined section of the PDF to be made in to links.
Similar online solutions are available from companies such as PageSuite and FashPageFlip but I need something we control and ca be placed on our own sever using what OS is best suited.
Based on initial development extra functionality will be added.

A better SWF template and the usage of swftools.

Needing website to produce dynamic PDF files that can be downloaded and printed.
I need a web page that can display specific templates I have created that user can change the font, color, wording, upload photo etc on the template– then pay, download file and then print from their personal printer.
What it would look like on my site:
* a page that displays all of the template choices
* they click on a template, which takes them to a page where they can make their changes (font, color, wording etc)
* see a proof
* approve and save
* pay
* download the PDF they created
* It would be important once they have payed, created and downloaded the file it can no longer be changed!
* They would need to login again and create a new PDF

maybe FPDF, iText, iTextSharp all can be used in this project, I am not sure.