Online PDF editors:

• PDFescape - free online PDF editor. Requires a Web browser with JavaScript enabled (Internet Explorer 6+, Firefox 2+, Safari 2+, Chrome, Opera 9.5+) and an active Internet connection. No installations. No downloads.
• PDF Hammer - free online PDF editor brought to you by the team behind Nitro PDF. them. Allows to Combine PDF files, edit PDF pages, protect the contents of PDF files with password-based security, update PDF metadata.

Online PDF tools

• PDF to Word Converter - free online PDF to Word converter. It allows you to create editable DOC/RTF files that can be used in Microsoft Word, Excel, OpenOffice, WordPerfect,....
• pdf2word - free online PDF to Word converter.