[texhax] includegraphics and image scaling
pfd at pfdstudio.com
Fri Dec 10 00:39:03 CET 2010
On Thu, Dec 9, 2010 at 6:13 PM, Peter Davis <pfd at pfdstudio.com> wrote:
>> I've run into this before ... where different tools report different
>> resolutions for JPEG files. If memory serves, ImageMagick always reported
>> 72dpi, whereas the IJG JPEG Library reported something else. I think this
>> is the result of multiple file formats with potentially inconsistent fields.
> Interestingly, Adobe Photoshop CS5 and Adobe InDesign CS5 report the image
> resolution as 96ppi.
> I'm using XeTeX (xelatex). Is that using ImageMagick internally to get the
Thanks, Martin, for the tip about jhead. I was not familiar with that tool.
That appears to agree with Adobe, Windows, etc:
C:\Users\peterd\images>jhead -v Chrysanthemum.jpg
JFIF SOI marker: Units: 1 (dots per inch) X-density=96 Y-density=96
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