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it seems to be screenshot time all over the place <g>. Here is what I
just sent yesterday on another mailing list (Acrobat Talk) about
There are a few things to keep in mind when it comes to screenshots.
First, your screenshots are bitmap images, which means that they have
a certain size at a given resolution. At this, and only at this plus
mulitples of that resolution, they are displayed good. At all other
resolutions, the Acrobat viewer component has to scale and to
calculate the best possible appearance.
Second, Acrobat works internally at 72 dpi; Windows works internally at 96 dpi.
Third, it depends a lot on the file formats you are using for your screenshots.
Fourth, scaling in the layout software will add additonal problems.
So, let's look at the procedure to create an optimum quality for
screenshots. As you have Photoshop available, you have a good image
processing tool at hand.
1. Take the screenshot. It might most likely be in the BMP or TIFF format.
2. Decide on the size in mm/inches the screenshot shall get in the
final product (if printed). Get the resolution of the output device
you will use. If it is Acrobat, it will be 72 dpi. Calculate the size
of the final image in _pixels_ (resolution x size).
3. Open the screenshot in Photoshop. Make the color adjustments etc.
and crop it if needed.
4. Scale the image to the final size in pixels.
5. Set the resolution to 72 dpi.
6. As it is a screenshot, you will not have that many colors, so that
you now can start reducing the colors. Switch to "Indexed" mode,
adaptive palette, 256 colors. Switch back to 24 bit color. Again,
switch back to "indexed", but this time with the exact number of
colors selected. Your screenshot is now reduced in colors to the
7. Save the image as GIF or TIFF. Never ever save a screenshot as
JPEG (unless it is actually a photograph, consisting of textures with
8. Place the screenshot in your layout software. As you are using
MessyWord, you might have to fiddle a bit in order to make sure that
the image gets imported and does not get any further manipulation.
NEVER, EVER, SCALE a screenshot when you imported it like that.
9. Save the document and create the PostScript file for processing in
10. In the Distiller Job options set the compression for color images
to 8-bit ZIP. Do not set it to any kind of JPEG compression, as this
will destroy all your previous efforts. You will get good compression
rates, as you do have screenshots.
11. Create the PDF, and your screenshots should look decent.
Hope, this can help.
Low Paper workflows, Smart documents, PDF forms
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