The newer app, like the original, enables you to mark up and annotate PDF documents in many ways: You can draw using ovals, rectangles, straight-lines, arrows, and freehand tools in any color and thickness, highlight text and images, and insert text boxes and pop-up sticky notes. (When you begin to annotate a file, the app automatically prompts you with an option to create a copy of the document for notation purposes, a very useful reminder that it is often a good idea to keep an untouched original. A very nifty feature is the ability to view, save, and email only your annotations.)
Besides the new look, the upgrade includes a slew of new PDF page management tools, including the ability to easily add, delete, and rearrange a document's pages. You can also now extract pages as new files, email individual pages, split documents, and append pages from other documents. Long documents are now much easier to notate and navigate thanks to a faster PDF rendering engine and a thumbnail page viewer. You can also now create new blank PDF files from within GoodReader.
GoodReader 4 now coexists with the separate versions of GoodReader 3 for the iPhone and iPad, and seeing as these separate apps cost $5 each, the $7 universal version is a bargain for most new users. If you currently use GoodReader 3.21 or earlier, the upgrade is probably worthwhile simply for its revamped look and speedier PDF viewing and navigation capabilities.
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