Re: Protecting e-mail addresses from spam

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Thanks Mike for the advice!

"Mike Koewler" wrote:

David,

I believe a pdf can be scanned for just about anything. I use Zoom
Search to create a search DB and it reads all text.

Now, how likely is a spambot going to scan pdf's? Not very. IMO, it
isn't worth their time as they rely on harvesting thousands of
addresses, knowing that only a very minuscule percentage (probably less
than 1 in 10,000) will reply.

FWIW, since I added a CAPTCHA to my forum, not a single spammer has
tried to join.

Speaking of which, an article I read the other day tested the
effectiveness of CAPTCHAs and the ability of a program to decipher them.
Surprisingly, one used on an MS MVP site was reported as fairly easy to
break, though it didn't look like it to me (it's based on levels on
noise, type of font(s), slant of characters, etc.)

Mike

DavidF wrote:
You misinterpreted my reply. I said I *didn't* think you had a problem...I
don't think the spambots crawl the pdf "image" for text...ie, for email
addresses. But you are asking a question that is best asked in an Adobe
newsgroup...ask there if a pdf file can be scanned for emails. I really
doubt it, but I could be wrong. Or Google it...

DavidF

"Billiam" <Billiam@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:A67CEE46-88A1-44F7-BA10-A6E12F39CC28@xxxxxxxxxxxxxxxx

Thanks for your reply, David. I have hundreds of e-mail addresses to "
protect "...I was really hoping that since i had a click here link to take
you to the page where the e-mails are listed that they would be
safe...obvioulsy i am wrong??? The other process seems too lengthy... Is
there a general standard for protecting people's e-mail addresses that you
could fill me in on as we are adding this feature shortly, but I got to
wondering if i should be doing more to protect against spam etc.
Bill
"DavidF" wrote:


I hoped someone else might jump in and answer your question, but in my
opinion I doubt you have a problem. If you want to take it another step,
then perhaps go to:
http://members.tripod.com/semper.fi/oelc/index.htm
Obfusticated Email Link Creator
Or google the subject...

DavidF

"Billiam" <Billiam@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:FB00C98B-3FD1-42CA-B48F-71BB9B304E76@xxxxxxxxxxxxxxxx

I need advice on how to "protect" e-mail addresses from spam...I publish
a
series of webpages in .pdf format (the links are not active as i am
using
primopdf) which list an instructor's e-mail address. You need to first
click
on a link to get to the .pdf pages...is this enough of a seperation to
stop a
web harvesting of e-mail addresses?
Bill






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