PDF (Portable Document Format) files are known for the fact that it does not allow you to modify its contents (easily at least). To generate a PDF file, you either need a software or access to a free site such as FreePDFconvert. In this site, you can convert commonly used files (Microsoft Office, Open Office, graphic images, vector graphic and other formats) to PDF. This interactive PDF converter and document creator is quick and reliable. At a click of a button, you can also create a PDF file of a web site almost instantly.

Some of the supported formats are:
CSV - Comma-separated values file
DCX - ZSoft IBM PC multi-page Paintbrush file
DIB - MS Windows Device Independent Bitmap
EMF - Enhanced Metafile
FPX - FlashPix Format
GIF87 - CompuServe graphics interchange format ver 87
JP2 - JPEG-2000 JP2 File Format Syntax
BMP - MS Windows/OS2 Bitmap image file
DOC - Microsoft Word 1997-2003
DOCX - Microsoft Word
DOT - Microsoft Word Template
EPS - EPS File
GIF - CompuServe graphics interchange format
HTML - Web page
ICO - MS Windows/OS2 Icons
JNT - Windows Journal Note
JPEG - Joint Photographic Experts Group JFIF format
etc...

Try it for yourself and see how easily you can use this online free pdf converter.