As far as I know you have to do it page per page.
If you're interested in the appendices, you can buy them here: contrary to the ORB (where you pay for each month), squadron appendices can be bought as a whole file (for the same price as a month F540 OR F541). So rather than spending some hours saving and ordering hundred of pages, you can pay 3.5 pounds and have them all.
The direct link to AIR 27/1779:
http://discovery.nationalarchives.go...ils/r/C2504421