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Thread: What's with the digital signature in original fonts / OTF?

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    Junior Member Hago has a spectacular aura about Hago has a spectacular aura about Hago has a spectacular aura about
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    What's with the digital signature in original fonts / OTF?

    So, can you tell by the copy of an original font who has this originally licensed?

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    Donor samiartur has a spectacular aura about samiartur has a spectacular aura about samiartur has a spectacular aura about
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    Quote Originally Posted by Hago View Post
    So, can you tell by the copy of an original font who has this originally licensed?
    No, a valid DSIG only ensures that the font was not modified.
    If you copy a font file, the DSIG is still valid but if you do any modification in the font, like renaming, the DSIG is invalided or removed.

    Artur

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    Junior Member Hago has a spectacular aura about Hago has a spectacular aura about Hago has a spectacular aura about
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    that's good news :-)

    Ty Artur.

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    Junior Member LeBetenoir is on a distinguished road
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    yeah, I don't think they've put DRM onto fonts ...yet. (I could be wrong)

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    Member Fontjunkie will become famous soon enough Fontjunkie will become famous soon enough
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    Some Foundry put the name of the buyer into the font.

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    Donor samiartur has a spectacular aura about samiartur has a spectacular aura about samiartur has a spectacular aura about
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    Quote Originally Posted by Fontjunkie View Post
    Some Foundry put the name of the buyer into the font.
    This is very easy to remove and it doesn't ensure the font wasn't modified.

    Artur

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    Senior Member tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute tony 7 has a reputation beyond repute
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    encryted info embedded in several locations

    In Letterhead fonts : protection : FontGuard can encrypt the purchaser's information into any font file for any system.
    Can the encrypted information be removed?
    The purchaser's information is embedded in several locations throughout the font file. One of these locations is visible on the "Version" tag line. While it is possible to alter the Version tag line, it is not possible to remove the hidden encrypted data that resides elsewhere. Regenerating or recreating the font does not defeat the system. The encrypted data cannot be removed or altered since one of the locations the data resides is within the glyphs themselves.

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    Donor samiartur has a spectacular aura about samiartur has a spectacular aura about samiartur has a spectacular aura about
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    Quote Originally Posted by tony 7 View Post
    In Letterhead fonts : protection : FontGuard can encrypt the purchaser's information into any font file for any system.
    Can the encrypted information be removed?
    The purchaser's information is embedded in several locations throughout the font file. One of these locations is visible on the "Version" tag line. While it is possible to alter the Version tag line, it is not possible to remove the hidden encrypted data that resides elsewhere. Regenerating or recreating the font does not defeat the system. The encrypted data cannot be removed or altered since one of the locations the data resides is within the glyphs themselves.
    This is interesting,
    probably if you make a PDF with all characteres and extract the font using Fontforge and them altering the glyphs you probably pass the fontguard, but it is much work. It is better to buy the font.

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