I don't understand the motivation of some new members of reviving old threads for no good reason.
Being a 'newbie' to Construct myself I too would like to see some sort of pdf file as I like to read printed stuff and have them to have as reference.
If you guys were that eager to have some kind of documentation (apart from the wiki, the numerous tutorials and examples - yeah, stuff that isn't presented on a silver plate), you should have found this by now:
Unofficial Construct manual made by chrisbrobs