I've manged to decode one interesting aspect in these strings: the I think that "FBMD" stands for "Facebook Member Data" (but I could be It appears asĪn IPTC Special Instructions metadata field. on, Facebook introduced a new tracking code. This blog post appears to know more about it: I've downloaded 339 images with instruction length 94 after the FBMD, and the following bytes stayed the same: 0 Using IrfanView to set special instructions to "testing" in a JPG without IPTC data, adds these bytes to the header: I haven't been able to decode Facebook's data, but pasting, downloading, and pasting an image again will change the data slightly. That's the International Press Telecommunications Council (IPTC) standard Information Interchange Model (IIM). See delivery memo for specific license.įor consideration only no reproduction in any form without prior, Additional third-party rights to be negotiated “Instructions” field in the Origin panel of the Adobe Photoshop FileĮxamples: *Image to be used one time only, non-exclusive inĮnglish-language-edition magazine as inside image, no larger than aįull page in color.
Need for accurate reproduction additional permissions or credits Information regarding the original means of capture (scanning notes,Ĭolor profile, etc.) or other specific text information the user may Any of the following might be included:Įmbargoes (eg: News Magazines OUT) and other restrictions not coveredīy the Rights Usage Terms field (or new PLUS rights related fields) Instructions This is a simple text field that can includeĪny of a number of instructions from the provider or creator to the Special Instructions Alternative label from older IPTC IIM
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