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How To: Convert PDF Documents to JPG Images Online for Free

PDF is a convenient format for documents that can embed text and pictures and can be read by almost any device—personal computers, laptops, smartphones, etc. However, PDFs are mostly read-only files, so sometimes it's necessary to convert them to JPG images, a universal format for pictures. JPGs can be modified by software such as Adobe Photoshop or posted on Facebook.

News: Null Byte's First Technical Excellence Tutorial Contest Ends Feb. 15, 2016!

As you all know, the first Null Byte Technical Excellence Tutorial Contest ends this coming Monday, Feb. 15, 2016. If you are working on another great article or your first article, try to complete it and submit it before midnight Pacific Standard Time (PST) to be considered in this contest. The winner of this contest will not only receive a certificate verifying the technical excellence of their tutorial, but they will also receive a free copy of the Professional version of the Exploit Pack ...

How To: Insert a movie from iTunes into your Keynote project

The Media Manager that comes with Keynote is a useful tool for adding in all sorts of media to your slideshow or project; and videos can add an extra level of depth and information to your project. Take any movie or clip from your iTunes library and then use the Media Manager tool to insert it into Keynote. It's a very simple process - the whole video showing you how to do it takes barely a minute!

How To: Make armor out or Sintra and Rub'n'Buff

Make your own armor with a weathered look out of Sintra (or expanded PVC foam). You'll need a heat gun, a padded cushion, paper towels, rub'n'buff in silver leaf, a knife, a marking pencil, water and a can of spray primer. Trace your piece onto the Sintra, then use the heat gun to shape it. Useful for costumes, Halloween or larps.

How To: Use a blind carbon copy for email

A blind carbon copy (or BCC) is a way to send a mass email without letting your recipient see the other email addresses on your list. This computer skill is important in the business world, where privacy is prized. Hiding the addresses when sending your secret message is a useful technique you can use for any email program.

How To: Master and use movable chord shapes when playing the ukulele

In this clip, you'll learn a number of endlessly useful movable chord shapes. If you want to get really good at playing the ukulele, it stands to reason that you'll need to practice. Happily, the Internet is awash in high-quality video lessons like this one from the folks at Ukulele Underground. For more information, including a step-by-step overview, watch this free video ukulele tutorial.

How To: Use navigation shortcuts in Microsoft Excel 2010

Looking for a way to speed up your MS Excel workflow? Try these useful navigation shortcuts on for size. Whether you're new to Microsoft's popular digital spreadsheet application or a seasoned business professional just looking to better acquaint yourself with the Excel 2010 workflow, you're sure to be well served by this video tutorial. For more information, watch this free video guide.

How To: Find the smallest number greater than zero in MS Excel

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 681st installment in their series of digital spreadsheet magic tricks, you'll learn how to use the MIN and IF functions to find smallest number that is greater than zero in an array formula.

How To: Average times entered as text in Microsoft Excel

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 682nd installment in their series of digital spreadsheet magic tricks, you'll learn how to to average times values that were exported from a database as text values instead of number values.

How To: Ask where the bathroom is in Spanish

If you're going to know any one phrase in a foreign language, "Where's the bathroom?" might be among the most useful. In this free video language lesson, you'll learn how to ask where you can find a toilet: "¿Dónde está el baño?" For more information, including a full overview of the proper rhythm and pronunciation, and to get started using this handy phrase yourself, watch this Spanish tutorial.