PDF Champ PDF Password Remover was a good option in my experience for this type of work. I used it on a few invoice and contract files that had editing and print restrictions. After unlocking, the layout remained unchanged. The spacing, images, text, and page structure all stayed exactly the same. That was the main reason it felt reliable. It also supported secured PDF files and worked properly on Windows without any issue. The offline process made it more comfortable for handling important files. The free demo version was useful to test the result before using the full version. Visit here: https://www.pdfchamp.com/pdf-password-remover/