1
vote
0answers
23 views

Forgotten name of site with techincal pdf self published documents [closed]

I remember coming across a new site which show-cased self-published PDFs, most of which were technical but a few consisting of other subjects. You could buy them for a few dollars each. Does anyone ...
2
votes
3answers
539 views

How to track / monitor changes in an online PDF file?

How to track / monitor changes in an on-line PDF file? Need to be notified when that happens.