Hi @Ben,

Thanks for your question!

Assuming that you meant Lucidchart, you can choose to export your document as a JPEG file in 300 PPI (screen quality) or 600 PPI (print quality). You will have the possibility to select one of these options from the “Quality” dropdown on the export page:

For further information about downloading/exporting documents, please feel free to take a look at the following help article from the Lucid Help Center: Export and print a Lucid document

Let me know if you have questions!

But the image in the instructions you gave allow for 160 ppi (screen quality) and 300 ppi (print quality), not 300 and 600, respectively. I need at least 600ppi

You can do this using the “Current zoom level” quality option. See this example GIF where I zoom to 1000%, which results in 1600ppi since the default is 160ppi. I custom cropped to a shape that is 1” wide to illustrate.