Re: [Zint-barcode] Very important feature request!

[Harald O. <har...@el...>]

Am 24.06.2025 um 18:42 schrieb Lenuta Gavrila:
> Hi there!
> 
> First of all I would like to thank you guys for the work you put in this 
> awesome project which by far has no alternatives, but today when I was 
> using Zint I've noticed that for some reason it lacks .JPG format 
> support, which to be fair I didn't expect it would; I didn't needed it 
> till today but always thought it would be there by design, since there 
> are so many other less popular raster image formats, but not the most 
> popular one, the .JPG.
> 
> /*TLDR:*/
> Please add the .JPG format!
> 
Dear Gavrila Lenuta,

unfortunately, jpg is not well suited for any bar code symbology.
JPG removes the high frequencies from the image. This pleases the human 
eye, but decreases readability or even destroys codes.

Bar code symbologies (technology name for all machine readable optical 
medias including OCR, 1D Code, 2D) tent to rely on exact measurements 
like sharp and exact edges.

JPEG encoding will flaten those edges and will add ghost edges.

The better suited formats are svg, gif and png, which are all supported.

Take care,
Harald