NSR Reader, a powerful PDF reader for Symbian has been updated with support for Text files (.txt) and multi-page .TIFF files (e.g. a format sometimes used with Fax software). The update should be pushed to you via the Nokia Store if you already have NSR Reader installed. If you don't have it installed, check out our review in which we rated it very highly, and I've even set it as my default PDF reader.
As shown in the screenshots below, version 2.1 brings in the following features:
Added support for multi-page TIFF image files (for Symbian^3 devices and above).