Export Quality Settings Differing In Output File Size

[jubro]

I have set up presets in Export Persona; one for JPG quality set to 85% and a second for longest edge 1280p with a name extension denominating both the preset actions (I wish it could all be done with one preset), - ' - Q85 1280p'.

The issue I am having is that the file size when exported using this method is much larger than when setting the quality to JPG 85% using the quick export panel method.

For example, an image I exported via the Export Persona presets is 1.78mb, whilst the same image exported using the quick export panel with the same settings is only 426kb.

I would prefer the smaller size. What am I doing incorrectly?

And is there a much easier way to set up an export preset for:
1. Quality
2. Image size
3. File name extension.

It's pretty much just as quick to use the quick export panel and type in the file name extension manually, as it is to enter the Export persona, scroll down to the bottom of two lists to access each of the presets, export the image as a slice and then return to the photo persona.

The ideal for me would be using the batch exporter and export an entire project simultaneously rather than individually, but it seems there is no way to add a file name extension during this process.

[walt.farrell]

Duplicated today here:

 

[carl123]

Please use other (duplicate) thread to respond, to this post, as it already has answers/questions