Not seeing the file I can't say for sure but "Read Only" means that the creator locked the file. The creator can set the file to read only or prevent printing, etc. If they didn't want you to see it, you would have needed a password to even open it.
If there are sections on the page that the creator wants you to fill out, than that does sound strange.
When you click on the file does the entire page turn blue? Can you select any text (even if you cannot copy that text)?