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Scenario: I include a jpeg file in a LaTeX-generated pdf. When the pdf is displayed at 100% size, the image is shown properly. However, pdfs at their "natural" size are usually rather smaller. The problem is when I "zoom to fit width" for example, the image will always get "pixelated", lacking a better term. I can ameliorate the problem by having the image scaled down, but this does not seem a proper fix. Is there a way to specify the size of the pdf for which the image should be shown at its original size?

As I write this, I realise that this question may not even make sense, because the same pdf file, displayed at its original size, in the same computer, with okular and evince, results texts of different sizes! Not only the font size, but also the image! Moreover, when shown in okular at its original size, the image in the pdf has the same size as the original image. In evince however, it is bigger (indeed all both the text and the image are bigger) -- even though the document is also being shown at its original size!

Does this make any sense? Where am I going astray in my reasoning?

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closed as unclear what you're asking by Ian Thompson, Guido, Adam Liter, Jubobs, Masroor Jul 3 at 21:38

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Sorry, but that is not totally clear. If you take different viewers and look at your pdf at 100 % the font size is differing? That shouldn't be in my opinion but is than an error of the viewer. When printed, it should be always the same. For non pixeled images, include it without scaling or smaller. If you need help with that, tell me. If you zoom in your PDF later, it will always look bad, as your jpg is not made for that (no vector graphic). Change to other formats or be satisfied with the fact, that the print will look "ok". –  LaRiFaRi Jul 22 '13 at 18:23
    
Yes, the font size differs depending on the viewer (same zoom level). I can't right now, but I'll post a printscreen comparing the two. "non pixeled images" == vector graphics? –  wmnorth Jul 22 '13 at 18:28
    
Check it in full screen mode (if available). 100 % can also mean "all space between tool- and statusbar" which differs for different software. Please edit your post with your minimal working example. It should be compilable by others but should be as short as possible (without taking out the mistake). PDFs are vector graphics (and SVG and EPS... please google). Jpgs, pngs... are raster graphics (like photos). Vector g. can be zoomed and get recalculated, raster g. are fix and will get blurry if you zoom in. –  LaRiFaRi Jul 22 '13 at 18:35
    
First thing I googled: youthedesigner.com/2012/08/12/… –  LaRiFaRi Jul 22 '13 at 18:35
    
Thank you for the reference, it's a good text. I was aware of the distinction between raster and vector images, I just had never seen the expression "not pixeled". –  wmnorth Jul 22 '13 at 20:36
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