Recommended PDF Reader for Windows Terminal Server Environment

Right now, I have Adobe Reader 9.0.0 installed on my Win 2003 Terminal Server. Before I just go ahead and update it to version 9.4, does anyone have an experience with a better PDF Reader for a terminal server environment?

It does not perform poorly now, but I am worried that the update might cause some unwanted slowdown in performance. Can anyone recommend a better alternative for a terminal server environment than Adobe PDF Reader? Any gotchas when installing in a TS environment? My googling hasn't really answered my questions completely and Adobe didn't seem to have any information pertaining to this situation available (unless I just missed it). Thanks.

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EDIT

I should have been more detailed in my description. I have at least 50 users dialed into the TS at any time, and they all open PDF's all day long because all of our files are scanned that way. As mentioned in one of the comments, any added bloat to the Adobe Reader application in the 9.4 upgrade could cause some performance problems. Just trying to do my research before blindly updating. Everything could work just fine. I just want to cover my bases and see if there are any other lightweight reader alternatives designed for a TS environment.

From serverfault NinjaBomb

• Try FoxIt. It's a small lightweight pdf viewer. They (at least used to) have a stand-alone executable (about 2-3MB) that didn't require installing, but

  NinjaBomb : Same as the other comment I made. Any experience using it in a TS environment?

  joeqwerty : In order to deploy the free Foxit reader on a terminal server you need to fill out this form at the following URL: http://www.foxitsoftware.com/pdf/reader/enterprise_reg.php
  From gWaldo

• You can try Foxit Reader, see http://www.foxitsoftware.com/pdf/reader/

  NinjaBomb : I have read random reports online of Foxit Reader crashing terminal servers when printing. Any validity to that? Have you tried Foxit Reader on your TS?

  AEP : No, I haven't. As for the crash - it would be very lame for Microsoft to be vulnerable to such things, so I won't believe this until I it is reproduced while I look.
  From AEP

• I've personally put a version of SumatraPDF on a 2003 Terminal Server with excellent results for my users.

  The difference to your situation:

  • only 20 users at a time.
  • not so heavy viewing/printing of PDFs per user as you describe.
  • a "known good" set of PDFs to work with from a "known good" source.

  I used a personal copy for each user installed in his own local profile/path by using the version from PortableApps.com

  SumatraPDF is very fast, very lightweight. Internally it uses MuPDF (a new PDF rendering part from the good guys of Ghostscript).

  From pipitas