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PDFMerge Combines and Splits PDF Files
Posted by Lifehacker US Edition at 2:00 AM on August 10, 2008
Windows only: Lightweight application PDFMerge combines and splits PDF files. Specify page ranges from each document you're merging and manipulate bookmarks, too. Preserve existing document bookmarks in a new bookmark tree or omit them altogether. Run PDFMerge from the command line or from the included GUI. PDFMerge is no-frills merging program so if you are looking to do more than merge files check out previously mentioned PDFill; Mac users want Combine PDFs. PDFMerge is a free download for Windows only.

At some point, anyone who's interested in personal growth and productivity has to ask him or herself: What the heck am I doing with my life, anyway? It's a big scary question, one that's easily avoided by checking out the coolest new Firefox extension instead. But if you've decided to tackle the beast, reader William Mize recommends a free ebook entitled What Do You Want to Do With Your Life?. The 136 page PDF is a workbook for creating your life plan. Mize says:
The go-to Vista fix-it guy, The How-To Geek, offers a much-needed tutorial and walk-through on installing print-to-PDF functionality in Windows Vista. To start saving paper and creating PDFs, you'll need to install a copy of
Windows/Mac/Linux (Firefox): The makers of the previously-posted
Windows only: Freeware PDF Unlocker, a free Windows utility, doesn't do everything that commerical packages like those from
Mac OS X only: Firefox extension Quartz PDF enables inline viewing of PDFs in Firefox 3 for the Mac. Just install, and next time you follow a link to a PDF, it quickly loads the PDF directly inline. Quartz PDF is lightning fast, and works exactly like you're viewing the PDF in Preview. It'd be great to see the thumbnail navigation sidebar in a future release, but as is this extension works like a charm. Quartz PDF is free, requires Firefox 3 and OS X 10.4 or higher.
Need some fresh e-reading material for your commute, but all out of e-books? Feedbook, a free RSS aggregator, takes in RSS feeds and spits out compiled PDFs in formats for pretty much any e-reader under the sun, including the Kindle, or you can create custom PDFs (with a free registration) for standard screens. The PDFs even come with a table of contents, and the site offers up a few free e-books of its own. Not every feed works all the time, including this here site's full feed this morning, but those that do come out looking surprisingly nice. Feedbook is free to use, but a free registration gives you a few more conversion options.
You can't edit them yet, but Google Docs users can now
Windows/Mac/Linux: Free, open source application KeyJnote transforms any simple PDF into a powerful interactive presentation similar to PowerPoint or Keynote. After you plug your PDF into KeyJnote, you get a slate of powerful presentation tools, with everything from simple forward and back navigation with your left and right mouse buttons, mouse highlighting, rectangle highlighting, slide zooming, and more. KeyJnote doesn't yet have a graphical interface for starting a PDF presentation, but using it is simple. 