One of the common tools spammers use these days are spambots which roam the internet searching any webpages they come across for e-mail addresses. This allows them to harvest huge numbers of e-mail addresses to send their spam to.
There are various techniques to obscure an e-mail address on a webpage. This utility allows you to represent your e-mail address as a GIF image. All it takes is some text input and using the GD library functions in PHP it will produce an image with that text in the picture. All you have to do is place the GIF image in your HTML code where you want your e-mail address displayed. Users will have to manually type the address into their e-mail client, but this is the purpose of DEAG -- to avoid using the mailto:firstname.lastname@example.org HTML tag which spambots can recognize and extract the e-mail address from.
Some of the more advanced spambots may even try using certain methods (like OCR) to try and extract text information out of images. To combat this, DEAG distorts the image with some distortion lines and randomly alters each character's position and thickness so that the text is still human-readable but (hopefully) unreadable by address collectors.
The interface allows you to change the background, text and distortion line colours, choose whether or not to use the distortion line and also alter the size of the image.
NOTE: We are strongly committed to ridding the world of the evilest of evils - spam - so it is our policy not to store or collect any e-mail addresses entered here. As a result of this policy, the images generated and the corresponding data are not stored on our system, not even temporarily. This is why you have to either view the generated GIF image with a graphics viewer or save it straight to your harddisc instead of it loading automatically in your browser.
Viewing your image with a graphics viewer:
Windows: In IE, click on open and the image will be displayed in the default graphics viewer. For Firefox, click open and select C:\WINDOWS\system32\mspaint.exe or any other graphics viewer you prefer.
Mac OSX: Safari will automatically load the picture in a separate window. For Firefox, choose the open by application option, and select a graphics editing package like AppleWorks, Graphics Converter etc. Internet explorer doesn't seem to work well here because it probably has a bug understanding the HTTP headers.
Mac OS9: In Netscape click on the choose the open by application option, and select a graphics editing package like AppleWorks, Graphics Converter etc. Internet explorer doesn't seem to work well here because it probably has a bug understanding the HTTP headers.
*nix/Other systems: If you have a a good Linux distribution things should be already setup for you, otherwise you might have to specify the path of a graphics viewer installed on your system, for example Gimp, eog (Eye of Gnome) etc.You can play around with the colour settings. They are RGB (Red, Green and Blue) values, each colour having values from 0-255. Use a combination to get the colour scheme which will best match your site.