PDFVue is a web-based tool that lets you upload a PDF, add notes, make changes and share. I played around with it for a few minutes, and I couldn’t get it to actually change the text in one of my client documents, but I loved how I could add notes about the changes I wanted to see.

I also like the ability to create forms, add pictures and links, and generally get something handy for nothing.

PDFVue Beta : Edit, Annotate, and Share PDFs for Free.