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Re: [O] Viewing pdf images

From: Doyley, Marvin M.
Subject: Re: [O] Viewing pdf images
Date: Wed, 12 Apr 2017 13:05:54 +0000

Hi Eduardo,
Thanks for the insight, I really appreciate this.
> On Apr 10, 2017, at 12:51 PM, Eduardo Mercovich <address@hidden> wrote:
> Hi Marvin.
>> I also agree that in terms of resolution (pix per inch ) pdf and jpg are the 
>> same. However, pdf (and SVG) allow the image to be scaled with little loss 
>> in image quality.
> Sorry to disagree, but again, pdf images can be vector (like svg) and 
> infinitely scaled or raster (bitmap, as a jpg) and in this case the quality 
> is on the file. The pdf format only adds and envelope around the original jpg 
> image, or in the conversion it can be downscaled.
> Just to test this you can extract the images from the pdf and check their 
> properties. The specific tools depend on your OS of choice, but at least in 
> Linux there are many options, some command line based and others GUI based.
>> In my lab we typically save the images in pdf because the most biomedical 
>> journals don’t accept SVG file format (not yet).
> Sure. But why not simply use a jpg or png?
> * Journals accept those formats perfectly well, * you will see them with 
> their best quality, and
> * you can see them in emacs buffers natively.
> Just try it and you'll see that -if I understood you ok- you will gain in 
> every dimension. :)
> Best...
> --
> eduardo mercovich
> Donde se cruzan tus talentos con las necesidades del mundo, ahí está tu 
> vocación. (Anónimo)

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