Step-by-Step Guide How to Flatten a PDF (Lock In Text So It Won’t Move) “Flattening” a PDF means turning your typed text, checkmarks, and signature into part of the PDF page — so it doesn’t shift, disappear, or get edited when someone else opens it. If you’re submitting a form, emailing it, or uploading it … Continue reading How to Flatten a PDF (Lock In Text So It Won’t Move)