Ghislaine Maxwell 's keeping a low profile amid the furor surrounding the so-called Epstein Files ... going for a stroll around her prison yard the day after President Trump signed off on the release.

The convicted sex trafficker was photographed walking the grounds of the minimum-security Federal Prison Camp (FPC) Bryan in Texas ... keeping her face covered by an umbrella. Gallery Launch Gallery Getty

She's dressed casually here -- just a pair of shorts and a T-shirt -- but there's nothing casual about the bombshell list and assorted files regarding her ex, Jeffrey Epstein , that the U.S. Dept. of Justice is now required to release to the public ... the unclassified parts anyway.

The House of Representatives voted to force the release of the Epstein Files earlier t

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