Understanding HTML export

Rene · Sep 20, 2004

Hi experts!

I'm boggled! When exporting from PPT 2000 some of the images (that are
only once in the presentation) are created multiple times with
different resolutions in the output folder. What is the reason for
this? When estimating the download times, I don't know which of the
images are actually used.

Also, I have deactivated the "use PNG" option, and still some images
are created as png. Can I force use of JPG in any way?

Thanks!
Rene

Steve Rindsberg · Sep 20, 2004

I'm boggled!

Pleased to meet you. ;-)

When exporting from PPT 2000 some of the images (that are
only once in the presentation) are created multiple times with
different resolutions in the output folder. What is the reason for
this? When estimating the download times, I don't know which of the
images are actually used.

Also, I have deactivated the "use PNG" option, and still some images
are created as png. Can I force use of JPG in any way?

The HTML shouldn't point to the PNG files but PowerPoint makes HTML that
"round-trips" -- ie, that you can bring back INTO PowerPoint and end up with
the same presentation you started with.

Always struck me as a very odd thing to want to do, but there it is.

I expect a lot of what you're seeing is stuff that's only there for the
round-trip ride but not really needed in the HTML version.

Try deleting all of the PNGs after you export then see if the browser can still
display it.

--
Steve Rindsberg, PPT MVP
PPT FAQ: www.pptfaq.com
PPTools: www.pptools.com
================================================
Featured Presenter, PowerPoint Live 2004
October 10-13, San Diego, CA www.PowerPointLive.com
================================================

Rene · Sep 21, 2004

Thanks Steve for the response!

It may be a misktake to try to understand this but....

1 - No, the PNG files are definetely needed! If I delete them the web
display is incorrect. Please not I deactivated the "allow PNG"
function. It's also bizarre that the images are actually available as
JPG as well (in the output folder), but the HTML code evidently only
links to them if PNG should not work or something! See code:

<v:imagedata src="Fluorescence_Stemi_1_slide0153_image082.png"
o:title="npo000053"/>
</v:shape><![if !vml]><img border=0 v:shapes="Picture_x0020_5"
src="Fluorescence_Stemi_1_slide0153_image083.jpg"
style='position:absolute;
top:20.84%;left:43.31%;width:49.27%;height:71.73%'><![endif]><v:shape
id="_x0000_s346119"

I assume it says something like... "load image082.png but if PNG is
not supported try the image083.jpg" (maybe it says something
completely different, I don't know)

2- what really boggles me is the fact that there are 4 JPGs that I
inserted into a single slide...two of those are converted to PNG, the
other two are JPG.

3 - something else... granted, I have a lot of notes in the
presentation but the webexport actually creates a *master01.htm file
with 150kb .... that's a lot of data to wait for during download!

I appreciate any ideas or help!

Cheers,
Rene

Steve Rindsberg · Sep 21, 2004

1 - No, the PNG files are definetely needed! If I delete them the web

display is incorrect. Please not I deactivated the "allow PNG"
function.

Yes, I understood that. I figured the PNGs would only be needed for PPT's
round-tripping, not for HTML display as a result. Weird that it's not the case!

It's also bizarre that the images are actually available as
JPG as well (in the output folder), but the HTML code evidently only
links to them if PNG should not work or something! See code:

<v:imagedata src="Fluorescence_Stemi_1_slide0153_image082.png"
o:title="npo000053"/>
</v:shape><![if !vml]><img border=0 v:shapes="Picture_x0020_5"
src="Fluorescence_Stemi_1_slide0153_image083.jpg"
style='position:absolute;
top:20.84%;left:43.31%;width:49.27%;height:71.73%'><![endif]><v:shape
id="_x0000_s346119"

I'd bet a penny or two that "if !vml" means "if not VML"
Try unchecking "Rely on VML for displaying graphics in browsers" on the "Browsers" tab of
the Web Options dialog box.

2- what really boggles me is the fact that there are 4 JPGs that I
inserted into a single slide...two of those are converted to PNG, the
other two are JPG.

JPGs are smaller, PNGs are more flexible; PPT seems to choose which one to use depending
on the needs of the slide. For example, it needs to use PNG if the image requires
transparency for any reason. If the image only contains a few flat colors, it may be
able to produce a smaller image as 8-bit paletted PNG; jpg doesn't support 8-bit color.
And so on. I've only looked at it a wee bit, but generally you can sort out the method
behind the seeming madness.

3 - something else... granted, I have a lot of notes in the
presentation but the webexport actually creates a *master01.htm file
with 150kb .... that's a lot of data to wait for during download!

Again, try deleting or renaming it and see if the browser will still display your pages.
That might be another "roundtrip" file

Also, if you have to convert presentations often, don't need animation but do need more
control over the results, have a look at our [shameless plug] PPT2HTML add-in at
http://ppt2html.pptools.com

Pleased to meet you. ;-)

The HTML shouldn't point to the PNG files but PowerPoint makes HTML that
"round-trips" -- ie, that you can bring back INTO PowerPoint and end up with
the same presentation you started with.

Always struck me as a very odd thing to want to do, but there it is.

I expect a lot of what you're seeing is stuff that's only there for the
round-trip ride but not really needed in the HTML version.

Try deleting all of the PNGs after you export then see if the browser can still
display it.

[/QUOTE]

--
Steve Rindsberg, PPT MVP
PPT FAQ: www.pptfaq.com
PPTools: www.pptools.com
================================================
Featured Presenter, PowerPoint Live 2004
October 10-13, San Diego, CA www.PowerPointLive.com
================================================

Rene · Sep 22, 2004

Hi Steve!

I've managed to get rid of the PNG... don't ask me how... actually
what I did was to reexport the images, save them as JPG again and
reimport them. Finally they were stored as JPG. Perhaps it was really
the case of numbers of colors.

I'd bet a penny or two that "if !vml" means "if not VML"
Try unchecking "Rely on VML for displaying graphics in browsers" on the "Browsers" tab of
the Web Options dialog box.

However, the VML story... well I did not have this option activated!
And still all this code is generated.

Again, try deleting or renaming it and see if the browser will still display your pages.
That might be another "roundtrip" file

Actually it seems like their is endless formating of the text that is
included in the notes. It seems like every line or group of words is
formated, even though the actual format does not change. Here's an
example....

lang=EN-US style='mso-fareast-font-family:Arial;color:#FF3300'>therefore,
to label various organelles in a cell at the same time using
different dyes,
for example. It is also possible to label and simultaneously
monitor different cell groups within a developing organism
using FPs that fluoresce in different colors. A fluorescent
protein can be
attached to other proteins (including antibodies) to formating

Also, if you have to convert presentations often, don't need animation but do need more
control over the results, have a look at our [shameless plug] PPT2HTML add-in at
http://ppt2html.pptools.com

Actually I have looked at your ppt2html tool. It's certainly great for
certain applications, but in this case I really need the frame view
and navigation window.

Thanks for your help.
Rene

Steve Rindsberg · Sep 22, 2004

I've managed to get rid of the PNG... don't ask me how... actually

what I did was to reexport the images, save them as JPG again and
reimport them. Finally they were stored as JPG. Perhaps it was really
the case of numbers of colors.

It occurs to me too that I neglected to mention something: you'd want to delete all
previous HTML output before trying anew with different settings. I don't think the
HTML export feature "wipes the slate clean" (ie, deletes all previous files in the
target folder) before exporting. So if a previous run had made PNGs, subsequent tests
wouldn't have deleted them.

However, the VML story... well I did not have this option activated!
And still all this code is generated.
Yup.

Actually it seems like their is endless formating of the text that is
included in the notes. It seems like every line or group of words is
formated, even though the actual format does not change. Here's an
example....

lang=EN-US style='mso-fareast-font-family:Arial;color:#FF3300'>therefore,
to label various organelles in a cell at the same time using
different dyes,
for example. It is also possible to label and simultaneously
monitor different cell groups within a developing organism
using FPs that fluoresce in different colors. A fluorescent
protein can be
attached to other proteins (including antibodies) to formating

Yup. Gives me hives to look at it. said:
Actually I have looked at your ppt2html tool. It's certainly great for
certain applications, but in this case I really need the frame view
and navigation window.

Actually, there's a way to do that with PPT2HTML. Shoot me an email at steve at-sign
pptools dot com if you're interested.

OTOH, if the PPT html's doing the job, you're good to go.

--
Steve Rindsberg, PPT MVP
PPT FAQ: www.pptfaq.com
PPTools: www.pptools.com
================================================
Featured Presenter, PowerPoint Live 2004
October 10-13, San Diego, CA www.PowerPointLive.com
================================================