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PNGGauntlet 3.1.2

Reduce the size of PNG images without any loss in quality

by Mike Williams

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License: Freeware
Operating Systems: Windows 7 (32 bit), Windows 7 (64 bit), Windows Vista (32 bit), Windows Vista (64 bit), Windows XP
Languages: English
Software Cost: Free
Date Updated: 01 August 2012
Watchlist: Add download to my watchlist
Downloads To Date: 683
Developer: Benjamin Hollis
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PNGGauntlet 3.1.2
Reduce the size of PNG images without any loss in quality

PNGGauntlet can compress PNG images to make them more efficient, so reducing file size while maintaining the same image quality. This can be particularly good news on websites, where it makes pages faster to load and reduces your bandwidth requirements, but this kind of shrinkage has advantages anywhere that PNG files are used.

The program works by combining three open-source image optimisation tools - PNGOUT, OptiPNG and DeflOpt - to deliver the best possible compression.

But while these core tools are fairly complex, you don't have to understand any of the low-level technicalities to use PNGGauntlet. Just drag and drop your target images onto the program, choose an Output folder, click "Optimize!" and watch as your images are tweaked.

Does it work? We tested the program with six large PNG-format logos. These were found online, so we'd expect them to be reasonably compressed already, but PNGGauntlet still achieved impressive results. One file was reduced from 71.63KB to 39.44KB in size (a 44% cut); others were cut by 24%, 20% and 7%, and even the best compressed two were still reduced in size by a few bytes.

That's not bad at all. If you need more control, though, clicking Tools > Options does give you access to the various PNGOUT, OptiPNG and DeflOpt settings (although you will need a good understanding of low-level PNG structures to get the most from them).


PNGGauntlet provides a super-easy way to optimise your PNG images, and it can deliver some very impressive compression results. Go grab a copy immediately.

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Spotlight: Free Full Software

WhatsApp Messenger 2.12.11

Free Full Commercial Software

WhatsApp Messenger is the world's most popular instant messaging app for smartphones.

You can use it to send and receive text and voice messages, photos, videos, even call your friends in other countries, and because it uses your phone's internet connection it might not cost you anything at all (depending on whether you'll pay data charges).

It's easy to set up and use. There's no need to create and remember new account names or pins because it works with your phone number, and uses your regular address book to find and connect you with friends who use WhatsApp already.

You can talk one-to-one or in group chats, and because you're always logged in there's no way to miss messages. Even if your phone is turned off, WhatsApp will save your messages and display them as soon as you're back online.

There's plenty more (location sharing, contact exchange, message broadcasting) and the app is free for a year, currently $0.99/ year afterwards.

Version 2.12.11 brings:

• Links that you share or receive will now include a rich preview. When sending a link, you have the option to not include a rich preview.
• Additional 3D Touch features: You can now quickly Peek and Pop chats.
• Redesigned Settings tab. 
• You can now view all your starred messages across all your chats in Settings — Starred Messages.