I am using Photoshop CC 2015 on a Mac Pro OS 10.9.5. When I use "Export As" to export a PSD file to a JPG, the dpi in the resulting JPG is only 72dpi instead of 300dpi (which is what the PSD file is set to). The size dimensions of the JPG are also different (larger) than the original PSD file. The problem is, these JPGs need to be printed at a certain size and its too time consuming to open all the exported JPGs and manually resize them. IMPORTANT FACT -- This issue with the dpi change only started a week or two ago. Before that, when I used the Export As feature to create a JPG, it maintained its 300dpi and original size dimensions.
Does anyone have any idea how to fix this? Did I uncheck something in the settings by accident? PLEASE HELP!