I've tried a number of PDF viewers, this is really very quickly in the presentation just large documents. The actual highlight is in the processing options: You can annotate the PDF, with highlighters edit (color and coverage can be selected), underline, add drawings, pop stamp on the pages, delete pages, etc. This is also done very quickly, but not intuitive. On 3 of 4 sides of the tablet menu bars can fold. Their symbols are indeed very well chosen, but the sheer abundance (at least 30 points) makes the whole confusing - up to the reading ability! A Manual is indeed available on the network, but only in English. Otherwise, really a top quality product!
