Illustrator Artboards not exporting to correct size

[tbush23]

I have a unique problem that I haven't been able to find an answer to.

When I export in Illustrator with multiple artboards, my png's are the wrong size.  For example, if I have a 300x250, it is exporting to 1251 × 1042.  So, I have seen a "fix" to just uncheck the "include bleed" in the export.  However, when I export that way, the size is off by 1 pixel (300x251).  On these previous exports, I have exported at 300 PPI.

Another answer I have seen is to reduce the resolution to 72 PPI.  When I export this way, the image is so pixelated that it's borderline unreadable.  What am I missing?  I have used photoshop to export images via artboards in the past and have never had this issue.  Is it a PNG vs JEPG issue?  Any help is appreciated!

[Ton Frederiks · Accepted solution]

Work with pixels or points as units.

Remember that Illustrator assumes that 1 pixel is 1/72 of an inch in size.

So if you want to keep the same amount of pixels as measured in your Illustrator document, export at 72 ppi.

Exporting at 300 ppi can sometimes give an additional pixel. It is better to export at multiples of 72 ppi (144, 288) to avoid fractional pixel values that are rounded to a whole pixel.

Another thing to check is the position of your artwork, make sure that the upper left x/y position values don't contain fractions.