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Cool idea. Have you thought about the ability to export to a PDF?

No but I guess I could. What would you use the pdf for, as opposed to say taking a screenshot to get a png? Would you want the canvas layout rendered on a pdf (the one you get when doing View -> Canvas) or something else?

Who is your target audience? I have never worked in a large company, but I wouldn't be surprised if a flow chart generator is something large companies would use.

Just anyone making flowcharts. Large cos often have to coordinate lots of people, so flowcharts can help. My main use case is for project mgmt and roadmapping.

PDF is portable. It's uses are legion because it is standalone.

PNG is also portable of course, but it is always embedded in something else. Outside of the tech bubble it is going to be a "what-is-a-png?" for the average person.

Everyone everywhere (to a first approximation) can handle a PDF as a document. PNG as a document is problematic for a vast number of people.

Though my first choice would be jpg. Everyone knows how to use them and they can be embedded in other documents easily.

For a large audience, I would also consider jpg, doc, and/or tif. With jpg being my first choice over pdf since jpg is easily embedded in other documents.

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