Ran a giant banner with grayscale photos by accident, client spotted it at the venue
Last Friday I sent a 12 foot banner to a trade show in Denver and forgot my linked Photoshop file was still in grayscale. The printer output looked fine in the PDF proof because I had it set to grayscale print preview, so I approved it without checking the embedded color profile. Turned out every photo on the banner was black and white while the text was full color, looked like a memorial poster. The client called me from the expo floor and asked if their new product launch was a tribute to something. Has anyone else trusted the PDF proof and got burned by a hidden color mode issue?
The tribute comments are funny but honestly this seems like an easy fix. Trade show banners get replaced all the time, especially if it's a 12 footer. If the client is already there and noticed it, just have a local print shop in Denver rush a new one overnight. Cost you a few hundred bucks and maybe a rushed shipping fee. The real issue is you approving a PDF without checking the actual file, not the grayscale thing itself. That's a 5 minute workflow change, not a career ender.