Cannot export large files to .png format at 300dpi
I’m using the command: File > Export As > PNG
Use artboards: Not selected
Resolution: High (300dpi)
Background Color: Transparent
I have an immediate need to export Illustrator files of roughly 8000 px by 6500px to .png format at 300dpi. I tried doing this with a file containing a complicated drawing, but it fails and displays an error box saying:
The operation cannot complete because of an unknown error [!now]
I created a simple file containing a few filled rectangles and experimented, with the following results: (all set to export to .png at 300dpi with no anti aliasing)
3000px x 3000px – and smaller files exported to .png OK
4000px x 4000px – flashed a not responding banner at the top of the window then did the export OK
5000px x 5000px – flashed the not responding banner then (a while later) did the export OK.
6000px x 6000px – No flashing banner, just the Cannot complete – unknown error message in a box.
I’m running Illustrator 23.0.3, on Windows 7.1
I tried the same exercise on my laptop and got much the same results using Illustrator 23.0.2 on Windows 10 Home v1809
I can’t use the fix I’ve seen of copying the file to Photoshop and exporting from there as I don’t have Photoshop. I’d really appreciate some help to sort this out. I’ve spend the afternoon trying to fix it, and I need to be able to create these .png files.
Dear Bren, unfortunately in the real world nobody uses PNG at these dimensions. Consider another - professional - format like TIFF for your images and you should be totally fine.