how to increase file resolution when saving file?

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Guest

I am using Microsoft Powerpoint 2000 to draw figures for publication in
scientific journal. I hope to save file at at least 300 dpi in TIFF file. I
can save them at TIFF file, but I could not increase the resolution. If I
could not increase the resolution, the figure will not be clear. How to
increase TIFF file resolution when drawing or saving them? Thanks.
 
PowerPoint is designed as a multimedia resolution (approx. 72dpi)
application. Any way to increase the resolution would be interpolating it,
which is not going to provide the best results. I would recomend using a
program that supports high-resolution output (PhotoShop, Illustrator, Corel,
Publisher...).

--
Best Regards,
Troy Chollar
TLC Creative Services, Inc.
troy at tlc creative dot com
www dot tlccreative dot com
==================================
A Microsoft PowerPoint MVP
==================================
 
Resolution said:
I am using Microsoft Powerpoint 2000 to draw figures for publication in
scientific journal. I hope to save file at at least 300 dpi in TIFF file. I
can save them at TIFF file, but I could not increase the resolution. If I
could not increase the resolution, the figure will not be clear. How to
increase TIFF file resolution when drawing or saving them? Thanks.
Click to expand...

Ignore that Troy guy. At least half of what he says. I do agree that
CorelDraw, Illustrator or any other real illustration app would be a better
choice. But if PPT is all you have, PPT is what we'll work with. So, to work
...

First, don't save as TIFF. PowerPoint 2000's TIFF export filters ... um ...
well ... they suck. Don't go there.

Export PNG instead, using the suggestions here to get higher resolution:

Improve PowerPoint's GIF, BMP, PNG, JPG export resolution
http://www.rdpslides.com/pptfaq/FAQ00052.htm

You can later convert back to TIF using any decent image editing program or the
very free, very versatile and splendidly excellent Irfanview
(www.irfanview.com)

BTW, 300 dpi doesn't tell us anything useful about the image. It's a ratio.
If we know the numerator (dots) or the denominator (inches) then we're in
business. Assuming your average 10" wide PPT slide, and 300 dots per inch,
you'd need an image 3000 dots (or pixels) wide. Probably overkill unless the
journal will reproduce it at that size.
 
And now you can ignore that Steve guy - at least when it comes to describing
DPI... Pixel size just is not used when desiging for print. (And just for
reference, all of this online jesting is just said in fun - right Steve?).

DPI is only part of the equalation when it comes to print design. 300 DPI is
the standard high-resolution print standard of a 100% size image. So if the
publication page is 8" wide x 10.5" tall (standard magazine sizing), then
the largest image needed would be 8"x10.5" @ 300 DPI (ignoring
bleed/oversizing).

But if you are locked into using PPT, then Steve's advise is the best you
can hope to do with PPT as your design tool.
 
And now you can ignore that Steve guy - at least when it comes to describing
DPI... Pixel size just is not used when desiging for print. (And just for
reference, all of this online jesting is just said in fun - right Steve?).
Click to expand...

All in good fun, of course! And of course, the image dimensions in pixels IS
used in print. It's just the other size of the same ratio.

A 300dpi 10" TIF is 3000 pixels. A 3000 pixel TIF at 300dpi is 10".
 
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