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How do I change the dpi in Properties of a jpeg from 96 to 300?


Question

I need to change the dpi shown in the Properties of a printscreen jpeg image from 96 dpi to 300 dpi for text editing in Abbyy. How do I do this in Microsoft Paint or other freeware? I need to change the dpi shown in Properties, not just change the image size.

2016/04/25
1
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4/25/2016 4:59:00 PM

Almost any decent program can do this. But depending on which one you are using you need to "block" the file size.

I understand that Abbyy you are refering to is the OCR program. And somehow is a little "dumb" needing the file to declare that it is on 300 dpi.

If you are using windows try irfanview www.irfanview.com Then go to Image > Resize/Resample and do not touch anithing but the box where you define the ppi (actually it says DPI)

On any plataform use gimp www.gimp.org

Image > Scale Image and change the X and Y resolution. Simply do not touch the pixel values.

This two cases will simply change the little data embeded in the file.

  • Neither of this will modify the image itself. but if you try to print it yes you totally are saying to the printer that the file will be much smaller, but only when printing. That ppi value is just an instruction for the printer.
2016/04/26
4
4/26/2016 12:40:00 AM