Use this page to remove password from PDF files you already know how to open. The lock comes off on this device, and the file is not sent away.
Files stay on this device. Nothing is uploaded.
This is not a way to guess a password. If the password is wrong, the file stays locked and the page says so. Only use files you are allowed to open.
The saved file has the encryption removed. Anyone who gets that copy can read it. Keep the locked original if you still need a protected version, and do not email the open copy to a wide list. Open the download once to confirm the pages look the same before you discard the locked original file on disk.
password protect a PDF
Encrypt a PDF so it opens only with the password you set.
merge a PDF
Stack several documents into one file, in the order you pick.
split a PDF
Cut one file into smaller files by ranges or a set number of pages.
delete pages from a PDF
Take out the pages you do not want and keep the rest as one file.