Gentoo Archives: gentoo-user

From: Paul Hartman <paul.hartman+gentoo@×××××.com>
To: Gentoo User <gentoo-user@l.g.o>
Subject: Re: [gentoo-user] {OT} image metadata and privacy
Date: Thu, 05 Sep 2013 16:57:14
Message-Id: CAEH5T2PXNKtTWLhZLsYm9=OdObXjNLgzu9OiDAQj8XqeBV4-HQ@mail.gmail.com
In Reply to: [gentoo-user] {OT} image metadata and privacy by Grant
1 On Thu, Sep 5, 2013 at 8:32 AM, Grant <emailgrant@×××××.com> wrote:
2 > Has anyone found a way to completely sanitize images of all
3 > potentially privacy-invading metadata for posting online? I recently
4 > discovered that there is actually an EXIF thumbnail image. So if you
5 > have a photo and you crop it and post it online, the EXIF thumbnail of
6 > the original uncropped image is still there for all to see.
7
8 Whether or not the thumbnail remains uncropped depends on the cropping
9 software. Competent software should not do that to you, but as we know
10 not all software has been created equal.
11
12 You can use jpegoptim --strip-all to remove any and all extra data
13 from your picture. Gentoo package name is media-gfx/jpegoptim.