Tweak PDFs on the Fly with PDF Hammer

Need to edit a PDF on the run, like when you're away from your computer and don't have access to local software like CutePDF Pro? Try PDF Hammer, a free Web service that lets you reorder and delete pages and join multiple PDFs into a single document.

All you do is upload one or more PDFs, then use the thumbnail preview to arrange pages the way you want. When you're done, click Export Final PDF to download the modified document. It's that simple.

Currently in beta, PDF Hammer plans to add more features in the near future, like the option to rotate pages and add stamps and watermarks. This is definitely worth bookmarking if you frequently find yourself in need of simple PDF tweaks. [via Webware]