
Removal of some restrictions in signed or certified files by digital signatures and in PDF forms Newest PDF 1.7 and 2.0 (Acrobat X, XI, DC) files support, including AES encryption, Unicode passwords, compressed files and unencrypted metadata.Guarantee of removing restrictions regardless of password and encryption type used.GuaPDF is GUI utility for Windows and command-line utility for Linux and MacOS. Only standard PDF security is supported, neither This process takes 1-2 days on one modern desktop computer and could be accelerated on GPU.

user password).ĭecryption of the file with password for opening is guaranteed for old PDFĭocuments with 40-bit key only. Unlockedįile can be opened in any PDF viewer without any restrictions so you may PDF restrictions removal is an instant process. Any Acrobat version up to Acrobat DC is supported, even with 256-bit AES orġ28-bit RC4 encryption. (you should have the right to unlock the PDF document, for example, remove restrictions (unlock) of any secure PDF document.Searching for open password with 128 or 256-bit PDF encryption is only possible using.If PDF file with open password is old enough and uses 40-bit keys (Acrobat 3 compatible encryption), this password could be removed with guarantee.

