Poor article. Missing material

This article is completely missing John Herschel, the inventor of the blueprint. His contribution is mentioned in the cyanotype article. The observation of a color change in a material is not the invention of a technology. There were may photosensitive materials noted but the development of a capability is a different act.2602:306:8B5F:7F50:8DD6:D7B:F7F9:46D5 (talk) 23:14, 15 October 2016 (UTC)

Last part in the "Blueprints replaced with whiteprints" section is written like an advertisement

The "Software from companies like PlanGrid, Bluebeam, Fieldwire, Okitoo, and others specialize in viewing these high-resolution PDF files and sharing notes easily between tablet users." text in "Blueprints replaced with whiteprints" is written like an advertisement and should be replaced. — Preceding unsigned comment added by 94.234.170.80 (talk) 11:04, 28 December 2016 (UTC)