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Thanks Leonard for explanation, the thing is that I got a large Mac-made file with perfect embedded thumbnails, about thousand pages. When I redistilled the file to shrink the size for screen view I was not able any more to embed the thumbnails as they have been. Just rough pixeled. Embedded thumbs would be wanted because it is quicker to scroll around in the thumbnail preview as if generated on the fly by the Acrobat reader. Raimund Leonard Rosenthol schrieb: > > > The PDF list is a service provided by PDFzone.com | http://www.pdfzone.com > __________________________________________________________________ > > At 2:25 PM +0200 7/6/03, Schuitz Grafik Design wrote: > >it looks like my Acrobat 5.05 on Win2k has a default setting to use low > >color resolution on creating thumbnails. > > Tnumbnails that are embedded in the PDF by Acrobat are stored > as 160x160 bitmaps stored using the JPEG algorithms, thus creating > artifacting of vector and text data. You have no control over this. > > >When I choose "delete embedded thumbnails" Acrobat deletes them in the > >file but rebuilds them in perfect color on the screen at runtime. > > That's because those are created "on the fly" using a > different technique. > > >Any idea howto increase the color resolution for embedding thumbnails? > > Since Acrobat 5 and later, as well as other PDF viewers, will > auto-create and display thumbnails there is no longer any good to > reason to embed them. > > So don't! > > Leonard > > -- > --------------------------------------------------------------------------- > Leonard Rosenthol <mailto:[EMAIL PROTECTED]> > Chief Technical Officer <http://www.pdfsages.com> > PDF Sages, Inc. 215-629-3700 (voice) > 215-629-0789 (fax) > > To change your subscription: > http://www.pdfzone.com/discussions/lists-pdf.html To change your subscription: http://www.pdfzone.com/discussions/lists-pdf.html
