How to upload Pdf on .edu site for CPA game hack niche?

Hello Guys, I wanted to know how do I upload Pdf's on several.edu sites for my game hack generator site and use these edu websites as parasite?
I see several people who have uploaded Pdf's on site and I am finding it difficult to upload Pdf's on such sites?

2. How do I index these Pdf's ? Are they indexed automatically?

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the eyes said:

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