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MS Office Forum / Publisher / Web Design / November 2007Protecting e-mail addresses from spam
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 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 >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 [quoted text clipped - 4 lines] > web harvesting of e-mail addresses? > Bill 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 > 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, [quoted text clipped - 13 lines] > > web harvesting of e-mail addresses? > > Bill 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 > 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 [quoted text clipped - 24 lines] >> > web harvesting of e-mail addresses? >> > Bill Hi David, Sorry, David, I also meant to ask if the same situation applies to Publisher 2007 webpages...if the e-mail address has to be accessed by a button that says 'e-mail" or contact the webmaster...is that usually enough of a separation? From what I saw from google it appears that keywords such as "e-mail" or "mailto" may be words to avoid if you can... Bill > 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 [quoted text clipped - 32 lines] > >> > web harvesting of e-mail addresses? > >> > Bill Read Mike's reply to this thread about being able to crawl a pdf file... As to email links on a website, that is a different story. With my limited knowledge of the subject, I believe it is the html code that is crawled by the spambots, just like the search engines do to index the page. If the email shows up in the html code it can be harvested. The link I gave you gives you a way of munging up the email addresses in the html code. As I said, with my limited knowledge, I am not the one to quote on this stuff, but I have read that a form is the best way to limit the ability of a spam harvester getting your email address. I personally have been useing the following inserted as an email link on my sites: joe@joeblow.com instead of joe@joeblow.com This supposedly is hard or not possible to harvest. I just copy and paste in the hyperlink dialog. I can't say that it works or not...like I said, google the subject for all the opinions on the subject. DavidF > Hi David, > [quoted text clipped - 50 lines] >> >> > web harvesting of e-mail addresses? >> >> > Bill 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 > 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 [quoted text clipped - 32 lines] >>>>web harvesting of e-mail addresses? >>>>Bill Thanks Mike. DavidF > David, > [quoted text clipped - 55 lines] >>>>>web harvesting of e-mail addresses? >>>>>Bill Thanks for the advice! Bill > Thanks Mike. > [quoted text clipped - 59 lines] > >>>>>web harvesting of e-mail addresses? > >>>>>Bill Thanks Mike for the advice! > David, > [quoted text clipped - 53 lines] > >>>>web harvesting of e-mail addresses? > >>>>Bill You could also try this embedded coding technique: http://www.wbwip.com/wbw/emailencoder.html > David, > [quoted text clipped - 57 lines] >>>>> web harvesting of e-mail addresses? >>>>> Bill
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