There are various college and university available which accept the PTE.
You can find the update list at Pearson official website.
Some of the institutes which started accepting PTE in Canada are Centennial College, Humber College, Seneca College, George Brown, St.Lawrence College, Langara College.
PTE is a computer based test of English for study abroad. The test consist of reading, writing, listening and speaking and is conducted via computer and the test is of 3 hours.