Best way to host pdf off-site

I have some pdfs that i’d like to host on my site (need to actually) but after working through several tutorials i cannot increase my file size limit and the pdf’s are 50mg – btw this is a huge WP screw up to limit the file size like this.

Anyway, i guess i’m looking at hosting the files off site but just provide a thumbnail and link so that file so people can click on them and be given the chance to download them rather than have it open in a new browser window like i would normally have it do. Every place i look to host them only allows free uploads up to 2mb which doesn’t help… I only need to host them for a month or so so i’d like to avoid paying to host something when i already have a site that should do it for me (damn wp) can anybody advise of another solution / workaround for this problem?

Any assistance is greatly appreciated.