You won't find a PDF because the factory manuals are copyrighted.
Anyone who says they have them on CD is lying. I've tried a few and a lot is left out.
Besides no one is going to sell you $300 worth of information for $5-10.
Haynes and Chilton are comic books only useful for starting a fire in your fireplace.
Ebay has the factory books, but once you enter the 21st century they get expensive.
Here's the cheapest set currently listed. $160 + shipping. Which is considerably less than most of the other 3 volume complete sets. Most want $3-400.
Out here in the sticks we leave the birds outside. We have a couple bird feeders on the front porch. This time of year a 50# bag of sunflower seeds lasts a month and a half. Come January we go thru that much every 2 weeks. They actually eat more than my 100# German Shepard, once the snow covers everything.