[magick-users] dpi issues converting from pdf to tiff

[Anthony Thyssen]

Judah McAuley on  wrote...
| That will set the dpi after the image has been read in, so it will 
| change the dimensions, then I have to resize to get it back to the 
| correct dimensions. I know I'm essentially going from a vector format to 
| a bitmap format, so I figure I should be able to specify at what 
| resolution IM rasterizes the pdf.
| 
| Judah
| 
| omicronpersei8 at imagemagick.org wrote:
| >>  I should be able totell it to read the pdf at 300 dpi 
| > 
| > Try
| > 
| >   convert -density 300 image.pdf image.tif
| 
The number of pixels will be correct for the density requested!

You can bring the image back to the dimentions you want by either
-resize (no density change, just size change) or -resample
(resize based on density changes)

reading image at a larger density and resizing is a great way to
improvide the overall quality of the result.

See IM Examples...
  Postscript/PDF
    http://www.imagemagick.org/Usage/test/#postscript


  Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
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           Please miss, can I leave?    My brain is full!
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     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/