Saving high quality graphs for publication

[Giorgio Piccitto]

Dear all, I am struggling with this issue and I hope some of you can help me.

I need to produce some graphs in .tif or .jpg at the resolution of 300 dpi. After producing the graph with the Stata graph editor, I only found the option to save .tif. Unfortunately, the file produced is only 96 dpi, and I have no clue on how augment the resolution as requested by the editor.

May any of you suggest something in this sense?

Thanks a lot, best, Giorgio

[Jared Greathouse]

Note I've never used this and I don't know why an editor WOULD ask you to do this, but does this work?

[Hao Xu]

This method may help you. First you need to export the image to svg format using stata, then use inkscape software (https://inkscape.org/) to export the svg image to jpg (or tif) format and set the desired dpi when exporting.

[Dimitriy V. Masterov]

I thought you can use the fact that image width or height in inches x DPI value = pixel width or height. But that does not seem to work. But there is a command line tool called ImageMagick that can fix that. You can download it from https://imagemagick.org/script/download.php.

Here is an example:

. sysuse auto, clear
(1978 automobile data)

. twoway scatter price mpg || lfit price mpg, xsize(7.36) ysize(5.35333)

. graph export "price_by_mpg.tif", replace width(2208) height(1606)
file /Users/dvm/Downloads/price_by_mpg.tif saved as TIFF format

. !identify -format "%[fx:w/300] by %[fx:h/300] inches" "price_by_mpg.tif"

7.36 by 5.35333 inches
. !identify -format "%w by %h pixels" "price_by_mpg.tif"

2208 by 1606 pixels
. !identify -format %x "price_by_mpg.tif"

72
. // Change DPI to 300 from 72
. !convert -density 300 "price_by_mpg.tif" "price_by_mpg.tif"


. // Confirm Everything Worked
. !identify -format "%[fx:w/300] by %[fx:h/300] inches" "price_by_mpg.tif"

7.36 by 5.35333 inches
. !identify -format "%w by %h pixels" "price_by_mpg.tif"

2208 by 1606 pixels
. !identify -format %x "price_by_mpg.tif"

300