Here's my bet. You will compare the PDF capabilities to your PC.
This means you won't be happy until you get a Windows Tablet so the same "excellent" PDF software can be used.
I've seen this request before and for now, the only acceptable solution would be a Windows tablet. There are a few out there so do that or at least try the iPad.
I'm looking for a tablet or e-reader to read PDF files.
I have a wide assortment of PDFs; some are very image intensive, some are pictures, some are just plain text.
I'm not looking for features beyond excellent PDF reading capability. A larger screen would be a plus.