I don't think this ever got fixed mine still does it in CC 23.0 Windows. Even if I align the it to be pixel perfect that doesn't always solve the problem when exporting the png.

Same issue. "Export as"PNG adds random extra pixel dimension; "Save for web" keeps proper dimensions

When I use the export image option to make a PNG or JPEG with use artboard at 300 ppi, my original image size is changed by 1 pixel (like an image goes from 500 x 500 to 501 x 501).

I have found the save for web works to retain the proper dimensions, but when the image needs to be printed, it becomes 72 ppi which is not correct resolution for printing.

When I use "Export for Screens" export option to batch-export artboards many of the resulting JPGs are a pixel larger vertically and/or horizontally that the artboard dimensions within Illustrator. For example I exported a dozen images with artboard sizes of 1200px wide and 1200px high. After exporting the resulting JPGs have a dimension of 1201px wide and/or high. This only happens on some of the exported files and only some of those are effected vertically and horizontally.

Mac OS X Mojave 10.14.4
Illustrator 23.0.3

The fix is to downgrade to version 15.3 where it still works. The grad tool also works as well.

Trying to export to rgb jpeg - this is a critical thing for us. It needs to be accurate to the millimetre size we're working in!
If I change my artboard to pixels to check the size, but then change back to millimetres, the size is incorrect. We do not work in pixels! Not all of us work for web.

Just embarrassed ourselves in front of our biggest customer, thanks a lot for still not fixing this bug.

A print file that has been adjusted (RGB, pixel values) and optimized for the web (pixel snapping) shows a perfect alignment in the pixel preview, but has fuzzy edges after being exported to the web (no matter in which of the export dialog boxes).
The same artwork can be copied to a newly created web file and the problem is gone.
File: https://www.dropbox.com/s/metpcvhmg255fv2/Stadt-Aarau_RGB.ai?dl=0

I've tried as @Nitish Agarwal suggested, but it doesn't work. It's integer and make pixel perfect also didn't work. It's really frustrating, that you can't export with Illustrator properly. Please fix it as soon as possible!

here is the solution https://www.youtube.com/watch?v=kBgVyXYwDoI

still struggling with this :( how can this be fixed?

I'm having the same issue! I've created a load of web ads for my company and most of the 72dpi exports have 1 extra pixel and the uploads are getting rejected. Some of them it's just 1 pixel others are 2 pixels (1 extra length and 1 extra width) and others exported correctly. Completely maddening! And exporting each individually with "save for web" would have taken longer than fixing the exports in Photoshop.

I've just noticed the same in photoshop. Trying to same templates in CC Libraries and every template has an extra pixel in width...Seems like a small issue but it's driving me mad :)

Oh man, would love to see a fix for this!

Just installed the 23.0.3 update and the bug is still there. I've been waiting and stuck with version 2015.3 for this to be fixed. @Ashutosh Chaturvedi Do you have any update on this?

I have had luck with Sharon Dean's method! Make sure your artboards are aligned to the pixel. I usually just copy and paste art boards over and over because it's my process, but whenever I want to export them, I make sure where they are in the document isn't on a decimal pixel.

I've had the same issue, and came here to see if there was a solution that didn't involve opening the file in photoshop to shave off a pixel. As a hail-Mary, I tried the legacy "Save for Web" and it exported correctly. Must be something with the new(er) export functions.

I have the same issues! I will probably be more aware of where I place my artboards, but it's so annoying. I should be able to copy as many artboards as I want and get the same size. I am at the point where I send all of my .ai files to another designer to export out because it's so tedious for me to shave off 1 pixel in photoshop.

it's the same when you try to export different icon sizes from 16 to 256 for example. its fkn annoying!!!! pls fix it immidiatley!!!!!

This may not be the solution you are looking for, but this can be solved (in both Illustrator and PS) by cropping the unwanted "rim".