Change in File Format

[Guest]

I had to send a presentation via the web for a class.

We were required to use JPEG or GIF only in the presentation.

The file I sent was within specs, only JPEG and GIF files.

When the instructor received the file, all GIFs had become PNGs.

Any idea what happened?

 

[Echo S]

I guess I don't really understand how anyone could tell that GIFs had become
PNGs in your presentation. Did the instructor mention how he/she determined
that?

 

[Steve Rindsberg]

I had to send a presentation via the web for a class.

We were required to use JPEG or GIF only in the presentation.

The file I sent was within specs, only JPEG and GIF files.

When the instructor received the file, all GIFs had become PNGs.

Any idea what happened?

None. But describe for us what version of PowerPoint you used and how exactly
you sent it via the web.

 

[Steve Rindsberg]

I guess I don't really understand how anyone could tell that GIFs had become
PNGs in your presentation. Did the instructor mention how he/she determined
that?

I'm thinking that "via the web" means "saved as web page"

 

[Guest]

I use PowerPoint2003.

I developed the PowerPoint presentation for class. The properties of the
graphics files in the presentation on my harddrive are GIF format. However,
the properties format of the graphics on the file the professor sent back
were PNG.

This file was sent via an internet explorer website, uploaded to an account
for the professor, and then the professor downloads or views the file. I do
not know what version of PowerPoint the professor uses.

The college student services told the professor there was no way for the
files to change format, however, I have seen the proof as compared between
the file I sent to the professor and the graded file returned by the
professor. (No, I do not believe the professor changed the format of the
graphics).

Any ideas?

 

[Steve Rindsberg]

Hi. It's still a bit vague what's going on here.

Step by step though ...

If you started with GIF files and they're not animated, PowerPoint has probably
stored them internally as PNG within the PPT file itself.

I'm not sure what the professor's reasoning is, but in my opinion, the format of
the files isn't especially important IF the format does no damage to the image and
IF it fits your size goals for the presentation.

The professor may beg to differ. That's the professorial prerogative, of course.
If the assignment was to use GIFs rather than PNGs for whatever reason, we have to
respect that.

But how are you and the professor determining the format of these files within
PowerPoint? Or are you both looking at the mess of files that PPT makes when you
Publish as Web page? The two are related but not by any means the same.

When you mention "properties format of the graphics on the file ..." what file do
you mean, and what properties format are you referring to?