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On 02/21/2012 09:51 AM, Jeremy Austin wrote:
>
> Not to be disputatious, but this is an oversimplification. One of
> the things PDF can do is store images, yes, but PDF is essentially
> a portable version of PostScript, which is a page description
> language. If you're talking about scanned faxes, then yes, it will
> be bitmap images you are dealing with, but if you're talking about
> output from TeX or InDesign or a virtual PDF printer, then you may
> be dealing just as much with vectors and text layout.
>
Okay, sure... why not? Nothing theoretical getting the way, just the
time and resources of the developers. Probably optimization efforts
wouldn't be focused on the PDF viewer so much, as in picking or
improving the related libraries. Evince uses gdk-pixbuf for image
loading, poppler for PDF rendering, and some other libs for various
image formats. Might be interesting and useful to find all the open
source PDF viewers available and see what they are using on the back-end.
Some interesting paragraphs in Wikipedia on the raster and vector
graphics:
https://en.wikipedia.org/wiki/Pdf#Vector_graphics
https://en.wikipedia.org/wiki/Pdf#Raster_images
I wonder, in the case of the PDFs in question, how the drawing images
are being stored. (vector, raster, format?)
As far as using the Adobe proprietary offering, I would always
recommend against gambling your software freedom, security, and
privacy on any black-box, closed-sourced binary.
- --
frigidcode.com
indicium.us
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Received on Tue Feb 21 10:33:59 2012
This archive was generated by hypermail 2.1.8 : Tue Feb 21 2012 - 10:33:59 AKST