GIF (GIF87, GIF89) format image

  • Thread starter Thread starter Vicente García
  • Start date Start date
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Vicente García

Hi,

I have a problem, I am working with Visual Basic and I need to save a image
in GIF format but Visual Studio always save the file in GIF89 format and I
must save the image in GIF87 format. May anyone please tell me how I could
save the image in GIF87 format or how I could convert a image format to
GIF87?

Thanks in advance
 
The .NET Framework uses system registered image codecs to encode and decode
images. The framework is using the codec which encodes GIFs in GIF89
format. I don't belive there is one available which encodes in GIF87. You
may need to lookup the GIF87 specification and write the encoder yourself
(which would be a lot of work).

- Andrew
 
Many thanks,

I have found ImageMagick, it has a console programa "convert" so I can
convert gif to gif87. It is not the best solution but it works

Thanks,regards!
 
Vicente said:
Hi,

I have a problem, I am working with Visual Basic and I need to save a image
in GIF format but Visual Studio always save the file in GIF89 format and I
must save the image in GIF87 format. May anyone please tell me how I could
save the image in GIF87 format or how I could convert a image format to
GIF87?
Click to expand...

I'm curious, why do you have to save the gif files as GIF87a? The GIF89a
version basically introduced features like storing several images in a
single file (animated gif) and *extension blocks*, like comments. In
these blocks it's possible to store copyright information etc. The image
data itself is pretty much the same thing in these two GIF versions. I
don't think there are any compability issues between them . Anyway,
there's no software in use today that can't read and display both versions.

terje
 
Hi,

First of all, sorry for my bad English. I must do it because the software in
which the images are going to be read is very old, (on an Unix machine) and
I haven't permission to update the software because of compatibility issues.

Regards
 
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