I've imported some jpegs of family history that include handwritten notes and "Xerox" copies of photos. Since this is probably a copy of a copy, etc., I need to make the blacks darker. I selected all photos, went into Develop, made strong changes to shadows and blacks and contrast. Then used Sync. The images look like I want in Develop, but the images in Library are still gray and the exported images don't show the darker blacks that I want. I just recently switched from Adobe Elements to LR and don't know what to do. Help please!