[Tex/LaTex] Which is the better image format for LaTeX

graphics

Suppose, I have multiple format of a image e.g. png, jpeg, jpg, svg etc. Which should I use for better looks?

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latex has no control over this at all, it depends on the engine or driver you are using. For example tex+dvips can not include png, jpg or svg but can include bmp and eps; tex+dvipdfmx can include png and jpg (as well as pdf).; pdftex similarly can include png, jpg and pdf; as can luatex; xetex uses xdvipdfmx so can use the same graphics formats as tex+dvipdfmx.

Of the ones you mention png is good for general bitmaps, jpg for photographs and svg (which will usually be converted to pdf before inclusion) is good for scalable vector drawings, however those are features of the graphics formats so not really on topic here. Usually for scalable graphics people use eps (for latex+dvips) or pdf (for everything else)

Related Solutions

[Tex/LaTex] Compiling LaTeX straight to an image

Probably the best way is latex followed by dvipng. The main advantages over pdflatex followed by pdf2png are: it is faster; it can start working on the dvi while latex is still in the process of producing the dvi. It's optimized for producing screen-resolution antialiased images at maximum speed. If your foo.dvi has 4 pages then you get foo1.png foo2.png foo3.png foo4.png.

[Tex/LaTex] Attach displayed image to the PDF without storing it twice

I followed Martin Schröder's idea to use reference XObjects. Here is an example to show that it can be done, in a very limited way, for embedded PDF files only:

\documentclass{article}
\usepackage{embedfile}
\begin{document}
\embedfile[id={foo}]{tst.pdf}% Embed the file and give it a ID (foo) to refer to it later
Some text
\setbox0=\vbox to 3 in { % Give a message to people who don't see the reference
To see the correct image, please:
   0)~ensure you are using Adobe Reader 9.0 or later; 
   1)~set the preference ``Show reference XObject Targets'' (on the 
     ``Page Display'' tab) to ``Always''; 
   2)~Add the path of this PDF file to the ``Privileged Locations'' box on the
      ``Security (Enhanced)'' tab}
\pdfxform attr {/Ref <</F \embedfilegetobject{foo}{Filespec}/Page 0 >>}0
\pdfrefxform\pdflastxform
\end{document}

For non-PDF files, this isn't possible: when a file is embedded in the PDF, the "embedded file stream" contains the complete, say, PNG file including metadata, and other "chunks". When you include an image for display, then only the image data itself is included as the image data stream (what would live in the PNG IDAT chunk), and the other information, metadata, etc, is represented in PDF syntax. I don't think there will be any way around this.

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Related Solutions

[Tex/LaTex] Compiling LaTeX straight to an image

[Tex/LaTex] Attach displayed image to the PDF without storing it twice

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