More questions and answers you'll find in the included documentation and here.After creating a brand-new PDF document for business use, it is vital to ensure that the information it contains remains safe and secure. Please make sure you run GuaPDF-OpenCL.exe. Q: Are non-standard security handlers supported?Ī: No, please run DEMO to make sure your file is supported.Ī: GPU acceleration is needed only if your file has password to open with 40-bit key.40-bit key search can take up to one day. But, free version can decrypt only one file.Ī: Restriction removal is instant (may be few minutes on very large files). Software, GuaPDF don't change anything in your file structure, it only decrypts allĮncrypted streams and strings. Q: What are limitation of free GuaPDF version?Ī: Free version is now fully fucntional.If you can't even open file, first of all you need to test your file (using free version) if it has 40-bit key encryption.Įlse, your PDF file uses 128 or 256-bit encryption and you need special Microsoft Visual C++ 2017 Redistributable PackageĪ: If can open PDF file, but can not print, edit etc, get the restriction remover version. I got the error message when starting the software: "The application has failed to start because the applicationĬonfiguration is incorrect" or "The code execution cannot proceed because *.dll was not found" GuaPDF has special support of PDF forms.That minimizes the possible incompatibility of Unlike most PDF password crackers, your PDF file is not altered in any way (except the decryption), even the file size.No time nor file limits after one-time purchase.GuaPDF is the first PDF password remover ever with 20-year history and thousands of customers!.Running in GUI and keeps running in batch mode (as command-line utility).Portability (Windows, Linux, MacOS versions are available). On modern GPU it takes only few hours to remove ANY open password with 40-bit key. On modern NVIDIA and AMD cards with GPU acceleration using OpenCL technology. Very high speed when searching for 40-bit key on modern multi-core Intel Core and AMD architecture and, especially,.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.PDF restrictions are insecure and permissions password could be removed instantly.Adobe Acrobat uses different algorithms to apply PDF security with 40, 128 and 256 bit keys. Is permissions password (also known as a master or owner The first password is known as document open (or user) password, and the second Restricted (e.g, printing or editing) and requires password for unlocking it. Opening the document, or, your file opens normally, but some operations are There are two types of secured PDF documents: your file can ask for password when How to remove PDF password security and unlock a document?
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