InvisibleTrackingDots
We show that you can protect your data by manipulating the laser printers. Laser printers print behind the scenes yellow invisible dots(Machine Identification Code), the dots can be used to find the printer only with the document. We overflow these dot-matrix to hide these dots.
Install / Use
/learn @DerEchteKay/InvisibleTrackingDotsREADME
What does the program?
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The macro opens a .exe program. This generates a large number of patterns of fake tracking dots, based on the current system time and a random serial printer number. A .png image with all the fake tracking dots in it is generated and imported in the document by the macro. When the document is printed by a Laser printer, Noone knows which pattern is the real and which is the fake pattern, so that your privatessphere is safe.
How to install the program¯o
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Download the .exe and the .odt file
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Save the .exe file in any directory you want
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open the .odt file and import the macro in it
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In row 18 of the macro-code, paste in the filepath where you have saved the .exe program
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you have now set up the macro.
How to use the macro ____________________ -
Before you print, start the macro. It will open the program.
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Adjust the safety of your fake pattern.
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if you want, you can set a time range to manipulate the time on the time stamps.
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Click on "print"
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Back in your document, click on the upper left corner of the document to select the image.
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set the image to Format>wrap-through so that your text can go behind the image.
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Copy and paste the image onto each of your pages, if you have more than 1.
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print the document
Bugs ____
Sometimes, the macro tries to load the image in the document before it is generated by the program. Try to finish the program and cut out the image and paste it again onto the same position (ctrl+x, ctrol+v).
You have to save your document before you can run the macro. Otherwise you have no document-path and an error occures.
Problems & Future
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As you see when you look in the code, the macro is only an example for how the idea could work. We have problems with the macro, because we don't know how to how to e.g. set the image to activate wrapthrough by a macro. For that reason, it would be great if somebody could improve our macro or the program. If you have questions or an improved version, please send us an email at errored@freenet.de it would be very nice.
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Security Score
Audited on Apr 2, 2026
