[Plugin: emObA – Email Obfuscator Advanced] Beware obfuscation by images
This plug-in works just fine (unlike many others I have tried). But I have serious issues with obfuscating email addresses by using images.
First of all, I had to spend 20 minutes revamping the images for “@” and “.” to adjust the color, font and baseline alignment so they matched the links in my template. Luckily all my links are the same color, and don’t have a different hover-color, because these images inserted by plug-in are used for all email addresses. Not exactly the most flexible solution.
Also, the images are one fixed size–according to the CSS, 10px tall. They stay this size regardless of what font-size your links may be, so they may easily look too big or too small. The images themselves are actually 2-color aliased GIFs images that are quite a bit bigger than 10px, so they’re being scaled down, probably with the goal of anti-aliased edges. Unfortunately, most browsers don’t do a good job of this anti-aliasing on their own. The following CSS code somewhat fixes this and sizes the images relative to the surrounding text.
Other problems include: the images also don’t print well. You can’t copy-and-paste the addresses correctly. Any styles applied to images as a whole (in my template, I have a border and box-shadow automatically applied to all images in posts) have to be removed for these images, and you won’t get some of the styles applied to the surrounding text (like text-shadow).
All in all, a workable solution, but hardly ideal.
More info on anti-aliasing:
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