Curiously, the ‘SOHOSTEL’ one is showing properly.
Both files open properly on my Mac with Preview.
Also, when I download the offending PDFs from the Imported folder on Dropbox and export them as PDFs from Preview (however weird that may sound) and remove from the file name the characters prefixed by QuickFile, they work fine.
The PDFs have been OCR’d and are searchable, so maybe the problem is that they contain some offending weird characters inside of them.
My first suspicion is the comma in the file name. Although we will try to replicate this and provide a fix.
EDIT:
BAGINSKI_+6-5-2015_2015-05-08.pdf - FAILS
BAGIŃSKI_+6-5-2015_2015-05-08.pdf - WORKS
Oddly it doesn’t like the encoding on the accented N. The QF link doesn’t accent the N and therefore the file does not load. When I access the file directly from our storage provide the N is accented.
You have other files there with accented Ó which translate fine, not sure why the Ń is treated differently?
EDIT 2:
Unless we change our column type to nvarchar we won’t be able to support files with diacritic characters in the name. Personally I don’t think it’s wise to do that but instead to replace the diacritic characters before uploading. This is something we’ll look into.
In the mean time if you can I would try to avoid using diacritic characters in your file names.
These issues can take time to fully test and resolve, particularly given that files are imported into QF from multiple sources, not just the upload box.