How to Edit PDF Files in Linux - PDFEdit

PDF files are often believed to be locked, requiring a tool from Adobe to edit or modify. That said, on Linux you can do almost anything with them using a simple software tool: PDFEdit. A combination of a good graphical interface and the power to edit the raw PDF file, PDFEdit is an open source project that gives you the ability to work with any PDF document you wish.

PDFedit is primary created for simple editing and manipulation of documents in PDF format. There is a graphical and command line interface available.

The software lets you change either raw PDF objects (for advanced users) or use predefined GUI functions. Functions can be easily added as everything is based on a scripts.

Scripting is used to a great extent in the editor and almost anything can be scripted. It is also possible to create your own scripts or plugins to enhance the functionality of the package.

PDFedit is a low-level application for technical users that provides structured access to the internal structure of the PDF file. It may require familiarity with PDF specifications to be able to make substantial modifications.

Installation: 
OpenSuse user can use "1-click" installer to install PDFedit
OpenSuse 11.1 - here
OpenSuse 11.0 - here

If you are using Debian or Ubuntu Linux, enter: $ sudo apt-get install pdfedit

Editing PDF Files with PDFEdit editor
To start PDFEdit, type: $ pdfedit /path/to/pdf.file &