HEATKEYS

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

The Adobe Acrobat User Community is a global resource for users of Acrobat and PDF, with free eseminars, tips, tutorials, videos and discussion forums.

Computer Help from your Friendly How-To Geek

Create PDF from any Windows application using Document Converter Pro! Batch convert Word (doc, docx) Excel (xls, xlsx) PowerPoint (ppt, pptx) eml, msg, dwg, dwf to PDF or Image. Print to PDF or Image from any Windows application. Server-side bat...

Create PDF from any Windows application using Document Converter Pro! Batch convert docx, xlsx, pptx, eml, msg, dwg, dwf to PDF or Image. Print to PDF or Image from any Windows application.Convert. Server-side batch conversion!

No file size limits, no ad watermarks - just a free, beautiful and simple online pdf compressor to reduce the size of your PDFs and maintain good quality.

Tech Support Guy offers free support to users of Windows 7, Vista, XP, 98, and just about anything else!

Printing Industry News and Discussion Forums

Home page of the United States Patent and Trademark Office

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

High-performance PDF manipulation tools. Merge, split, stamp PDF files in batches. Compress, optimize, resize, scale PDF! Digitally sign, timestamp and encrypt PDF files.