Quick export saving wrong size

 Work with 'artboard'. in tool bar-> move tool -> right click -> select artboard tool-> make artboard desired size.

 I guess, artboard acts as a kind of frame, and without this, Photoshop will recognize your image as a single object and export the image to the minimum square containing the object.

Here's my solution:

• A white rectangle with the Rectangle Tool, set to the width/height & x/y of the layer grouping you want to export.
• Set the rectangle as the very last item in the group.
• In your layers panel, set the rectangle's Opacity to 25% and set the Fill to 1%.
  The opacity will be entirely impreceptible when your transparent png is on a black background.
• Quick export will honor your dimensions.

This method gives you a much nicer transparency than the legacy Save For Web does, plus you can alter your Export Settings to PNG8 if you're exporting for web.

As many of you reported this as a bug, let me assure you, it is not one… For a long time now, if you want to export multiple layers of different objects that are cropped strictly to the egdes, you would go for the new Export as… If you want to export the whole canvas with all the transparent pixels, then use the legacy version. But yeah, there should be a simple button in the Export as dialog window to select wheather you want to export the layer cropped or with all the empty pixels that surround it in your design (canvas). So, this definately should be added in the future. You can still expand the canvas size in the Export as… dialog window, but it centers your object which is not always desirible.

Having the same issue! its driving my crazy.

I need to export an image inside a transparent document, but photoshop is cropping it   on export as PNG.

I reverted to using Save for Web Lagacy.

Please FIX!

I Mostly use photoshop to cut out frames for my animation and everything is scanned in the same position but when i quick export is as an PNG the Image is not centered as it was in the photoshop file. I never had this problem before and would realy like a way to fix this 

that is so stupid. What if you need the transparency for layer positioning in rapid production of ads? I have millions of dollars of placements due. And why is it happening in video?

My workaround to this was to just import my photoshop file to procreate and export it as a png from there.

My $10 ipad app has the ability to do this and not the professional program that I pay nearly $30 A MONTH for. 

If you're gonna have such an expensive program please ensure it at least works properly because as of nearly 2020 this is still an issue. What a joke, adobe. 😞

I figured it out: if you have any transparency, those areas on your canvas will be ignored. Photoshop does not understand that you wanna export your document exactly as it is or as you left it.

The best we can do is to set the "jpg" as the default extension on quick export preferences. If you're gonna export to PNG, make sure to apply a background color below all your layers. If you don't, it will ignore transparent areas.

This current functionality is just ridiculous.  Most people use PNGs in web design because it allows for transparent backgrounds.  If Export As doesn't export the entire canvas and only the artwork itself, then why bother including PNG as an export option at all?!!  Makes no sense.  But at least legacy Save For Web still works.  Thank god!

Anyway, yet another unnecessary workaround I found is to add a background shape to fill the required dimensions of the canvas/artboard and give it a transparent fill.

This bug still exists. In my case it is happening, when exporting a smart object layer (that is scaled over 100% extending over the canvas boundaries).