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I have a PDF that I would like to shrink for a presentation. PDF viewers, like evince and Apple's Preview do a great job of zooming out. How can I reproduce this type of zoom-out outside of the PDF viewers? Ideally, I'd like a command line or other automatable solution. Right now I am taking a screenshot of the zoomed out PDF viewer!

Here is an example of the type of rescaling I am talking about:

Original PDF

Screenshot at 100% zoom in evince: Screenshot of original PDF viewed in evince

Screenshot at ~20% zoom in evince: (despite that evince says 50%). This is what I would like to get as output: Screenshot of original PDF zoomed out

Rescaled image using ImageMagick with convert orig.pdf -resize '25%' convert-zoomout.png. Note how the lines are small and indistinct. Unfortunately, scaling in Powerpoint produces similar results as this. Rescaled image with ImageMagick

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try with ghostscript –  Fabio Dalla Libera Mar 19 '13 at 18:23
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@Karan You should make that an answer. I'd still prefer a free solution, but a non-free solution is better than no solution. –  Ed McMan Mar 19 '13 at 19:04
    
All right, done. I'll look around for a free alternative as well. –  Karan Mar 19 '13 at 19:09
    
@Karan I will give some time to see if people know of any free alternatives, but if there are none I'll accept your answer. –  Ed McMan Mar 19 '13 at 20:39
    
While using ImageMagick, did you try specifying a higher density, higher quality, or even auto-gamma/auto-level? –  Karan Mar 19 '13 at 20:48
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1 Answer

up vote 1 down vote accepted

Using Advanced PDF Tools Command Line with a command like:

pdftools -i input.pdf -o output.pdf -j "25% 25% true"

gave me the following at 100% zoom:

1

It's not free however, and the unregistered version only modifies half the pages of a PDF (in this case though it worked since there was only a single page).

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