The WWF format is a PDF file that cannot be printed out. Save your documents as WWF and avoid unnecessary printing.
Adobe PDF is the most popular format for saving documents since the layout and formatting is preseved and PDF documents look the same on any platform. You can even view them online in Google Docs without requiring Adobe Reader.
PDF software Adobe Reader X sports a lean UI, offers better protection against 'bad' PDFs and is nicely integrated with Adobe SendNow, an online file sharing service.
You can now browse the web via email. Simply send the site URL to web2PDF and it will send you the full web page as PDF.
Meet a free PDF Reader for Windows that includes a PDF writer so you may also use it to create PDF files from Office documents, images and web pages.
Want to annotate PDF documents on your iPhone or iPad? Now can you can with the awesome GoodReader app.
An web based tool that will help you create PDF slideshows of your photo albums on Facebook with a click. You can also download your tagged photos.
Download the free iBooks application from iTunes to read PDF files on your iPhone, iPod or iPad.
The iPad is an awesome device for reading PDF documents and ebooks. Learn about some of the best PDF Reader Apps for your iPad.
Learn how you can digitally sign PDF documents and forms for free online without requiring any software. The digital signatures can also be verified in Acrobat and Adobe Reader.
This guide describes how you can print one or more Wikipedia pages as a PDF file. The articles are neatly formatted and print-ready.
Nuance PDF viewer for Windows is free like Adobe Reader but can also convert PDF files to Office formats.
Download a free PDF printer driver your Windows computer to create search-optimized PDF documents from any application.
Apply a Creative Commons License to your photos, documents, MP3 and videos with these free software tools. For blogs and websites, use the online Creative Commons License generator.
Tweetbook is a free web service that can create a nice diary-like PDF book of all your own tweets and your favorites. You may also backup and download your Twitter account into an XML file with Tweetbook.
Office 2010 includes a built-in PDF writer to help you save any document into the PDF format at the click of a button.
Looking for a free batch PDF converter? This article describes how you can convert several Office documents, PowerPoint Presentations and Excel Spreadsheets into the Adobe PDF format online at once using Google Docs.
PDF book - Boom and Bust in the Blogosphere looks at successful blogs like TechCrunch, Gawker, Robert Scoble, BoingBoing or Darren Rowse and also analyzes blogs like PVR Wire, Blognation and Know More Media that were popular at one time but no longer exist on the Internet.
Duff shares some good tips on how to get your Adobe PDF documents and presentations rank higher in Google and other search engines using simple techniques.