On 24/07/2020 23:54, Martin Wynne wrote:
The downloaded PDF files are vector files which can be zoomed to any level without pixelating, and can have the internal records modified as required.
The only vector files where you can reliably detect things like railways are those produced by the OSM APIs. The PDFs will change as ideas on how to render the map change. On the other hand, they contain no rendering, just wire frames.
Also, generating a PDF server side is a relatively expensive, so don't expect to welcomed if you start doing this on the fly.
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