Re: [gentoo-user] Question about Apache, PHP and where execution actually takes place
On Thu, 9 Jun 2005, Daniel da Veiga wrote: That program you mentioned to convert and resize, is a Windows one, isnt? So, you convert your images at Windows and then use the images on Linux? I would use Mariusz tip on using convert directly. jigl? No, it's a perl script that calls imagemagik and jhead. Or did you hit reply on my message and were talking about his message? Hard to follow a thread when you do that =) Christopher Fisk -- Calvin : I think we have got enough information now, don't you? Hobbes : All we have is one fact that you made up. Calvin : That's plenty. By the time we add an introduction, a few illustrations and a conclusion, it'll look like a graduate thesis. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] {OT} image metadata and privacy
Hi Grant, Yes, I just had to do this myself. There are two packages: jhead and exiftool. The former does jpegs only. I wound up using exiftool, there's a single command to strip all metadata: exiftool -all= *.jpg If I remember right that creates a copy of the file it processes. You can use exiftool to list tags and also remove individual tags. I used it to make sure there were no GPS tags in pictures from my phone. Dan On 09/05/2013 06:32 AM, Grant wrote: Has anyone found a way to completely sanitize images of all potentially privacy-invading metadata for posting online? I recently discovered that there is actually an EXIF thumbnail image. So if you have a photo and you crop it and post it online, the EXIF thumbnail of the original uncropped image is still there for all to see. - Grant
Re: [gentoo-user] {OT} image metadata and privacy
Yes, I just had to do this myself. There are two packages: jhead and exiftool. The former does jpegs only. I wound up using exiftool, there's a single command to strip all metadata: exiftool -all= *.jpg If I remember right that creates a copy of the file it processes. You can use exiftool to list tags and also remove individual tags. I used it to make sure there were no GPS tags in pictures from my phone. I thought I had some problems getting exiftool to work with a PNG file but now I realize I didn't understand how to use it. I think that should be the de facto method for removing EXIF data from many different image formats. - Grant Has anyone found a way to completely sanitize images of all potentially privacy-invading metadata for posting online? I recently discovered that there is actually an EXIF thumbnail image. So if you have a photo and you crop it and post it online, the EXIF thumbnail of the original uncropped image is still there for all to see. - Grant
