'GoodReader® is the super-robust PDF reader for iPad - the #1 selling non-Apple app for iPad in USA in 2010! Mashable describes it as “a Swiss Army knife of awesome!” Reviews worldwide hail it as “essential,” “the best,” “magnificent” and “the killer app”. With GoodReader on your iPad, you can read virtually anything, anywhere: books, movies, maps, pictures. Use it once and you’ll be hooked. Soon you'll be wondering how you ever managed to use your iPad without GoodReader.
GoodReader has earned its accolades by the way it handles huge PDF and TXT files, manuals, large books, magazines, and renderings of 100 mb and more with great speed. The ability to mark-up PDFs opens up new doors to GoodReader users who can now use typewriter text boxes, sticky notes, lines, arrows, and freehand drawings on top of a PDF file.
Besides reading, you can also sync your files with remote servers:
• sync with Dropbox, SkyDrive, SugarSync and any WebDAV, AFP, FTP or SFTP server
• sync entire folders or individual files separately
GoodReader not only supports massive PDF and TXT files, but also handles the most popular file types:
• MS Office - .doc, .ppt., .xls
• iWork ’08/’09
• HTML and Safari webarchives
• High resolution images
• Even audio and video!'
This app costs $4.99