What is a good Foxit Reader equivalent?

You can always try evince, okular or even Acrobat Reader from Software Center.

Or install wine and just use Foxit Reader.

If you do not mind using wine, my recommendation would be to use PDF-Xchange with wine, I found PDF-Xchange, the portable version, to be the best wine based solution, you can use it to annotate, update pdf metadata, measure page, fill out and save forms, and a few more things, there will be no watermarks in saved pdfs, its rendering of pdf documents is blindingly fast, it puts Adobe Acrobat Reader running on any platform to shame even when it is running under wine, I have annotated and updated the metadata of hundreds of documents with this tool and have no problems with PDF corruption, in fact it will offer to fix xref tables in documents corrupted by pdfmod or other pdf software, it is available here: http://www.tracker-software.com/product/pdf-xchange-viewer, it runs beautifully under wine. I wished a free product like this was available natively for Linux.

There is a commercial Java based system called, PDF Studio available here: http://www.qoppa.com/pdfstudio/index.html Claims to do a lot, similar to Adobe Acrobat Professional, runs natively on Linux, I do not know how good it is, I think they offer a free trial copy so if you do not mind commercial applications you could check it out.

Foxit Reader for Desktop Linux