I'm encountering a strange problem that I need a little help with. I'm working on a business card design that uses a green screen photo that was shot by a semi-professional photographer using a Canon 70D. The image that has been provided to me is a 3816 x 5472 px (53 x 76 inches) .jpg at 72 ppi. Before attempting the green screen removal, I changed the image resolution from 72 ppi to 300 ppi with the Resample dialog box in Photoshop CC unchecked. That resulted in an image size of 12.72 x 18.24 inches. I then attempted to remove the green screen, which was poorly lit but usable, using the Select Color Range in Photoshop CC. That worked reasonably well, but there was still some green mixed in with the subject's hair, plus green fringing on the subject's clothing. I used a Hue/Saturation layer and targeted the green to remove most of the extra green. After I removed the green screen, I saved the image as a PSD file and brought it into Lightroom CC, which is my preferred application for color correction and photo retouching. I then saved the photo as a Photoshop PSD and placed it in an InDesign CC document. The final PSD was placed in an image frame that is 1.75 x 2.125 inches. Next, I output the file using a PDF Preset that one of my commercial printers provided, which has worked great in the past. See the attached screenshot below this post for the settings. Although the Printable PDF seems fine, and the image is showing at 300 ppi (using Adobe Acrobat's Object Inspector), the image in the high-resolution digital proof I received from the printer is pixelated. Clearly, this file required a lot of manipulation to get from Point A to Point B. Quite frankly, I'm not sure if this is a printer problem or an issue with my own image workflow. At this point, I was thinking about simply placing the 300 ppi untouched photo in the InDesign document and having the printer pull another proof to at least eliminate that variable. I would greatly appreciate any help and/or advice on this matter. Thanks!
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