No problems with other browsers. I have tried Firefox, Chrome and Vivaldi, all works fine.

Still same problem with 31.0.1889.174.

Electronic invoices comes out garbled, and I'm not able to fetch messages from my inbox. When I try to open my messages I get the following error:

PDF.js v1.0.606 (build: c6c4583)
Message: Unexpected server response (204) while retrieving PDF "https://www1.banknorwegian.no/wnp/innboks/OpenMessage". 

This is a small bank, even by Norwegian standards, but I think they use an online solution common for a large group of banks.

I'm using Opera 30.0.1835.125, and I have the same problem on Linux using the same version number of Opera.

I'm using Opera 30.0.1835.125 on OpenSUSE 13.1 KDE. Here is a couple of examples:

http://www.pewglobal.org/files/2015/06/Pew-Research-Center-Russia-Ukraine-Report-FINAL-June-10-2015.pdf

Where the page counter counts all the way to 58/58, but with an increasing offset, and the last page I can see most of is the 48th page. When the counter reach end, it's not possible to scroll further down.

http://www3.nd.edu/~pkamat/pdf/researchpaper.pdf

Where the counter goes to 21/21, but I can't see anything below the header on top of the 18th page.

After I upgraded to version 30, I'm not able to see the last fifth of PDF-documents rendered with the built in viewer. For a one page document it means I can't see the bottom of the page. I can see a little less than two and a half page of a three pages document, four out of five pages and so on. The largest document I have opened has been 60 pages, of which I could see only the first 47 pages.

Will Opera Max installed on my phone compress data when I'm sharing the internet connection? I have a tablet without SIM, and use tethering via Bluetooth or WiFi.