That's because the background is not part of the PDF (unless it's colored). The white background is normally drawn by the viewer (in Preview you can actually choose not to draw it).

If Acrobat Reader copies the white background, it actually draws it explicitly rather than copying (part of) the PDF. It may also not be PDF at all, the fact that it looks bad suggests it's actually a bitmap copy.

Skim actually copies 2 versions: PDF (which draws no background) and TIFF (which contain a white background). Apparently Keynote pick out the first. If you could find a way to get the TIFF, perhaps by copying into an intermediate (graphics) app, you could perhaps use that.

Here's a trick to do this:

1. Write the following line in Script Editor and save as an AppleScript .scpt file (save it somewhere in ~/Library/Application Support/Scripts/ or a subfolder, possibly Applications/Skim/, and make sure you've enabled the system scripts menu):

set the clipboard to (the clipboard as TIFF picture)

2. After copying an image from Skim, run this script from the Script menu
3. Now you can paste the TIFF image, including the background

Christiaan

On 19 Oct 2008, at 7:40 PM, Nathan Paxton wrote:

        Hi all,

I am copying some tables from a PDF article into a keynote presentation, and I have encountered a problem that I can't seem to resolve.

If I copy the info from the PDF with Skim (or Preview), only the actually typeset info gets copied. That is, the black text gets copied to the clipboard with a transparent background. Then when I go to past into Keynote, the text is difficult to read (since I'm not using a light background). If I do the copy in AReader, a white background comes across, but the table's text comes out rather jagged and raster-ish.

Is there a way to copy the info I want from Skim with a white background?

Thanks,
-Nathan
----------
Nathan A. Paxton
Ph.D. Candidate
Dept. of Government, Harvard University

Resident Tutor
John Winthrop House, Harvard University

napaxton AT fas DOT harvard DOT edu
http://www.fas.harvard.edu/~napaxton
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