Usually, we download PDF files from internet or receive them in the email. The PDF files may contain much information we need. We want to open them in Adobe Acrobat and edit them or copy some text, images out of the PDF files. For some PDF files we cannot edit, copy or even print it, because they are encrypted. If you want to view or copy those PDF files, you need the password of the files.
Basic knowledge about the PDF password There are two kinds of password provided by Acrobat PDF standard security. They are “user password” and “owner password”.
User password is for opening PDF file. If you define a user password before generating the PDF file, people will have to enter the user password to open it. So only the ones who know the user password can open the PDF file. Owner password is set for changing the rights of the PDF file. With an owner password, the owner can protect the PDF files from printing, copying text and graphics out of the document, modifying document and adding or modifying text notes.
Then, find out how to remove the PDF password. The universal recovery methods like Brute Force Attack are too slow because of the encryption method used in PDF files.
Want to get back the password? Why not to remove them? If you are careful enough, you may find that there are many PDF password remove tools and most of them can be free downloaded. Below is a list of the PDF password remove tools.
| Software Name | System Requirements | Price | Trail Version Limitation |
| PDF Password Cracker Pro | Windows | $49.95 | only decrypt the first half pages of your original PDF file. |
| Guaranteed PDF Decrypter | Windows, Linux, Solaris/SunOS | $25-$150 | Demo version has some limitations and can correctly decrypt only small files. |
| A-PDF Restrictions Remover | Windows | $9.99 | Free 15 days full function trial. |
| PDF Password Recovery | Windows | $19.99 | The demo version will add the watermark "Demoversion" to every page of the result file. |
Password removing always causes the sensitive problems. So, make sure that you have not violated the law with these password removing methods.
Related Software Recommend
PDF Password Remover
PDF Password Remover can remove the PDF password in seconds. After the decryption, you can print, copy and edit the PDF files freely.
- Create PDF Files
- Convert PDF Files
- Edit PDF Files
- View and Read PDF Files
- Download and Manage PDF Files
- Remove PDF Password




