Add support for QR Code Logo

[bejeweledone]

I don't see in the QR code parameters where there is the ability to include a logo image. Am I missing something or is this not yet available?

[terryburton]

On principle, since a logo image is not part of the QR Code specification and is therefore not something that a fundamental barcode symbol generation engine should facilitate.

Pragmatically, it's not clear to me what benefit having such a feature in a symbol generation library provides over simply post-processing the generated image? One tool with one job, then separate the different tasks between tools.

[bejeweledone]

I am very new to barcode generation. I am not sure what you mean by 'post-processing'. All the tools I looked at that are capable of adding the image seem to do it as part of the code generation process.

I am using the API in a Power App to generate barcodes/qr codes and it is designed to be a 'one-stop shop' that does not require premium licensing and provides everything in one place without having to go somewhere else.

It's not a huge thing, I can just see the possibilities if it were available for Tradeshows and Marketing etc.

[terryburton]

Which API? And how does that relate to PostScript, in particular providing a logo for it to render?

[bejeweledone]

This is the API I am using. https://bwipjs-api.metafloor.com/

And I am not sure how to answer your questions as to how it relates to PostScript. I simply asked if this was something that was there and I was missing or if it was planned on being added in the future.

This API is a tool that is here and was what I was looking for. I happened across the ability to add images as well and thought I would ask as I can see a potential desire for that.

[terryburton]

This is the wrong project. BWIP-JS is a translation of BWIPP to JavaScript, and the API that you reference is provided by that project.

You're looking at a tool from the outside, but you've raised the issue against the kernel. If seems more like a feature request that would be satisfied closer to the API, after initially rendering the barcode.

Whilst it would be possible for PostScript to render a bitmap logo passed in as an encoded parameter, the data would need to be decoded before being rendered "on top" of the QR Code.

It's not clear that other users of BWIPP would use such a feature if it were provided by the PostScript engine, nor whether they would provide some means to pass through an "uploaded" image, whether by form or URI parameter.

My point with regard to post processing is that any API build on top of BWIPP (or a derivative technology) would likely find it easier to just overlay the logo onto the output produced by the barcode engine.