What is the mapping of pixels in html to pdf

Vivek Gupta

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Nov 26, 2011, 11:05:22 AM11/26/11

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I am confused on a very basic question --

- What is the dimension of a page say 8.5x11 inch in pixels? Can I simply use 72 dots-per-inch, and assume it is 612x792 pixels?

- What is the translation from html pixel width to pdf page? When I specify a font size to be 14px, would it translate to 14/72 inches?
Thanks
Vivek

Peter Brant

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Nov 27, 2011, 4:13:48 AM11/27/11

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The default is 96 px per inch (which is also specified in the CSS
spec), but this can be customized with the dotsPerPoint and
dotsPerPixel parameters to the ITextRenderer constructor.

(from ITextRenderer)

// These two defaults combine to produce an effective resolution
of 96 px to the inch
private static final float DEFAULT_DOTS_PER_POINT = 20f * 4f / 3f;
private static final int DEFAULT_DOTS_PER_PIXEL = 20;

Pete

Vivek Gupta

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Nov 27, 2011, 9:03:30 PM11/27/11

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Thanks Peter! This is very helpful.

Vivek

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