Re: [savannah-help-public] Google Code will be no more at 2016-01-25

[Werner LEMBERG]

>> My suggestion is to use netpbm programs to filter everything, e.g.
>>
>>   jpegtopnm < input.jpg | pnmtojpeg > output.jpg
>>   pngtopnm < input.png | pnmtopng > output.png
>
> While it is beneficial to filter out sneaky EXIF stuff (some malware
> do hide code inside EXIF) and unnecessary thumbnail, would the first
> command above further degrade jpeg images?

Yes, but very slightly only under normal circumstances.  It's
certainly not worse than, say, your favourite social platform
rescaling your avatar image.  Cf. this article

  
http://www.hackerfactor.com/blog/index.php?/archives/355-How-I-Met-Your-Mother-Through-Photoshop.html


    Werner