[guardian-dev] sanitizing PNGs

[Hans-Christoph Steiner]

Ah, the memories are all coming back: ObscuraCam uses C code to sanitize
images.  Seems like there should be some Java code around somewhere to
do that.

.hc

Hans-Christoph Steiner:
> 
> Ah, cool, I thought exiftool only worked with JPEGs.  It seems to work
> with just about every image format.  Now the open question is how to
> strip all PNG metadata with Python and Java.
> 
> .hc
> 
> Rick Valenzuela:
>> does exiftool do what you need?
>>
>> `exiftool -all= <some.PNG>`
>>
>> On 11/12/2017 17:57, Hans-Christoph Steiner wrote:
>>>
>>> Anyone know any tools for sanitizing PNGs without touching the
>>> compressed image data?  With JPEG it is easy to strip out EXIF with
>>> python-pil or many other tools. I haven't found a simple, clean approach
>>> in Python for PNGs.
>>>
>>> .hc
>>>
>>
> 

-- 
PGP fingerprint: EE66 20C7 136B 0D2C 456C  0A4D E9E2 8DEA 00AA 5556
https://pgp.mit.edu/pks/lookup?op=vindex&search=0xE9E28DEA00AA5556