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Two Easy Ways to Open Protected or Encrypted PDF Files
Nowadays PDF has become one of the most convenient medium to share documents over Internet. These PDF files may contain very useful and sensitive data which the authors of PDF do not wish to freely distribute at their own cost. So they protect these PDF files with various restrictions like disable PDF printing, block text copying, disallow editing and form filling etc before distribution.
However, sometimes you receive a PDF that is protected by password and you want to print it. You know, if the PDF file have more than 20 pages. It is hard to read on computer. Print it and read on paper would be good choice. unfortunately, it is protected. How could you remove the protection and open it easily? Before when read the methods, we are going to learn another pdf tool here: best pdf to dwg converter, just click in and learn more.
To open a password protected PDF file, you can try out a more commercial solution using password decryption tools. There are two applications you can actually try:
PDF Password Remover
This software can be used to decrypt protected Adobe Acrobat PDF files, which have “owner” password set, preventing the file from editing (changing), printing, selecting text and graphics (and copying them into the Clipboard), or adding/changing annotations and form fields. Decryption is done instantly. Decrypted file can be opened in any PDF viewer (e.g. Adobe Acrobat Reader) without any restrictions — i.e. with edit/copy/print functions enabled. All versions of Adobe Acrobat (including 7.x, which features 128-bit encryption) are supported. However, there is a limitation in this software. It doesn’t work with documents which have “user password”. If you want to eidt a pdf file, you can convert pdf to dwg with a pdf to dwg converter freeware.
Advanced PDF Password Recovery
Another software you can try is Advanced PDF Password Recovery from ElcomSoft is a program to decrypt password-protected and restricted Adobe Acrobat PDF files which have either “owner password” or user password. This software uses methods like Brute Force, Mast, Key Search and Dictionary Attack to guess the password and remove the protection. It will try all the possible character combinations to decrypt the files. However, the process might be lengthy and time consuming.
Related link: view autocad on ipad.
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