change dpi buffer

[dungmv]

change dpi from a buffer source

[asturur]

what is the blob argument here? a blob or a buffer?

[dungmv]

sorry, the variable name is confusing, it should be buffer

[asturur]

So a couple of suggestion

1. rename it buffer

2. With this addition the users have to specify the format by themselves. That is fine, but they have to know how to do it. Docs will be a way for sure, but also adding to the exports the current 2 supported formats is an help, as you did for the new function. so that they can just reference the 2 formtted strings image/jpeg and image/png.

[asturur]

Do not forget to also add a test please.

[asturur]

Ok sorry, my bad, we have already a PR doing this:
#8
that includes types detection and test.
Did you try that code? any reason why you feel like this version is better?

[dungmv]

Ok sorry, my bad, we have already a PR doing this:
#8
that includes types detection and test.
Did you try that code? any reason why you feel like this version is better?

Sorry, I don't see it. So you can reject this pr

[asturur]

I do not need to reject it, i wonder if you tried it and if it fits your need. If it does, i could merge that and we could try to polish what is missing if you want to help anyway with a contribution.

[dungmv]

I do not need to reject it, i wonder if you tried it and if it fits your need. If it does, i could merge that and we could try to polish what is missing if you want to help anyway with a contribution.

My project needs to save an image with 300 dpi from nodejs with Jipm. Jimp can get buffer and save to file, but it can't set dpi. so I need this feature for my project.
btw, Jimp already defined image type, therefore, I don't need auto-detect format of the image