Printed "Watermarks" - not typical sort 1

[webmigit]

I have a document that I need to be sure is authentic.. No copies, no scans, etc... I know there's no way to block this but I've done everything I can to ensure against forgeries... And yet thought of nothing I can do to deal with copy machine copies.

Here's my question.. Is there anyway to print something (on your average printer) that would be highlighted in a copy... Like some checks have a very light VOID watermark in the background... a copy emphasises the void.. and instructions are on the checks that if the word VOID is clearly legible, then don't cash it.

ALFII.com

http://www.alfii.com

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[cLFlaVA]

Even if there was, I could save your page source locally to my machine, edit the source as necessary, and then print out my revised edition, without your watermark.

*cLFlaVA
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Lois: "Peter, you're drunk!"
Peter: "I'm not drunk, I'm just exhausted from stayin' up all night drinking!

 

[TheConeHead]

hmmmm ... since most printers are essentially copiers this might be difficult....

 

[webmigit]

clflava, I know you could, but its a protection... its something to make it more difficult...

Its just one avenue for a protection...

If anyone thinks up anyway to do this, post it please...

ALFII.com

http://www.alfii.com

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[theEclipse]

I dont know how you could apply this to a webpage, but here is what I know about check watermarking:

They print "void" on the check with a ir-reflective ink. it reflects the light from the copier's tube, but our eyes dont pick it up.

another technique is to use dot pitch. I am not as sure how they do this one, but I do know that if you get a super high rez scanner you can make copies of things watermarked in this way. These are usually things like bank statements and things, not checks.

search google man....

Robert Carpenter
/b{2}|!b{2}/ - that is the question...

http://www.toyboxhosting.com

robert@convertingchaos.com

http://www.convertingchaos.com

 

[webmigit]

We'll call your our resident counterfeit consultant.

Actually, news on this front, I went down to the printer to talk to them about another security method, and they were amazed that their secretary copied a death cert and VOID came out across it... So this is probably a patented method.

I don't think it can be done on the home/small office printer.
Even if it is possible, there are probably royalties to pay.

ALFII.com

http://www.alfii.com

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