#48 fails to open docs with names containing special chars, no error given

[Kaylea Champion]

Hi PDF Shuffler team,

When I try to open documents with names containing special characters (such as '%' or '('), I observe the following behavior:
-- highlighting the document, then hitting 'enter' causes the red 'open' button to depress slightly, but nothing else happens
-- highlighting the document, then hitting the 'open' button with my mouse causes the highlight to disappear from the document, but nothing else happens

When I renamed my documents to slightly less pathological names, I was able to open them with no problems. I think the program should at least give an error about invalid characters -- but it would be better if it found a way to open the documents, since PDF is used for interchange between so many platforms with varying rules as to special characters.

Thanks for your consideration! This is a useful tool that (other than this bug) does just what I need.