Is this a virus or just a huge PDF

[Michael Hearn]

If you google "campbell biology 9th edition pdf" then the second link will be a google doc with it. It seems sketchy but I still downloaded it. How can I tell if it is a virus or not. its 193.1 MB its named campbell biology 9th Edition.pdf. How can I figure out if this is a virus. The PDF opens but it should be way smaller in data size if it is about 1500 pages.

 

[getochkn]

If there is pictures, it can be that big or depending on how they scanned it and what resolution they used. It's like a jpg. It can be the same image and be 100kb or 15mb if it's resolution is huge and used the lowest compression alogirthm.

 

[ZippyPeanut]

Yep. A biology text needs zillions of high-res pics. 193.1 megs sounds right to me. I'd be worried about a virus if the file size was 193.1 k.

 

[nzrajput]

If you are unsure, scan it using Malwarebyte Anti-Malware and Hitman Pro.
They both are on-demand scanner.