When reading some of the technical specification file, the white paper, research reports document material, often should use the PDF file. What is a PDF? How to open a PDF file. The PDF files is short for Portable Document Format. PDF Reader Adobe Reader is used specifically to open the suffix for PDF document. PDF Reader (Adobe Reader) is Adobe company a development of the electronic document reading software,

The benefit of PDF file format is that file format has nothing to do with operating system platform, that is, PDF files either in Windows, Unix or in apple's Mac OS operating systems are universal, and now many smart phone also can read PDF document. This characteristic makes it a idea digital electronic document information transmission in the Internet. When more and more electronic books, product description, the company proclamations, network information, E-mail is starting to use PDF file. PDF format file has become digital information industry standard.

PDF reader sometimes called the PDF file reader, PDF ebook browser, or PDF file browser. If just for reading PDF files, install Adobe Reader free. The latest version of Adobe Reader is 10.0. For Windows XP operating system computer, general use Adobe Reader7.0 9.4. And making PDF files is to use the professional software Adobe Acrobat., you can also convert PDf to other format with PDF converter pro. you can convert multiple PDFs to multi-format documents; preserve original text, images, graphics, etc; convert encrypted PDF files without hassles and so on. The most important features of this program that is can support OCR. It means this advanced PDF Converter Pro can convert scanned PDF to text-based Word/Excel/PPT/ePub/HTML/Text formats.

How to Remove PDF password

When we download the PDf document on the internet, it often encrypt by author. Here I recommend Advanced PDF Password remover: let you can immediately remove the PDF document Password. It is not a password recovery tools, because in your document not need password, the Windows only resource manager by right clicking PDF files, and through the menu choice, you can the editor, print, copy or other you want to operation.

PDF Password Remover Key Features

•  Efficient Decryption Modes 
  This PDF Password Remover suppprts 2 efficient decryption modes - batch and right-click decryption.
• Remove PDF Password and Restrictions
  The best PDF Password Removal supports not only importing Adobe PDF 1.0 - 1.7 formats (.pdf), but also can decrypt encrypted PDF files which were restricted by author to prevent others from copying, editing or even printing.
• 100% Secure 
  This powerful PDF Password Remover is 100% Clean: No Viruses, No Spyware, No Adware.

PDF code-breaking tools support suddenly and violently broken, mask, dictionaries, key four crack mode.

Of course, described above is just an ideal protection effect, in fact the similar protection measures are easy to be cracked, especially print, editor of the limit is scanty protection, if you set up a very complex password, it is able to protect the safety of the document, because the crack exhaustion methods, such as the need to use violence to crack password, it will need to spend more time. PDF file is really a secure way to distribute your file. Most people know that because of great non-editable feature, but you also need to be aware of PDF security is an important part to assure this. Occasionally, as to this point, you are disabled to copy or print or even open the file. So, if you want to copy and print these locked files, what can you do? Obviously, if we have to copy, print and share our PDF files, we need to remove PDF password firstly. Then how to break PDF password?

First PDF only is viewed as a page preview format, not production format. But the feeling of market is not so, market expectations that the focus of the transformation format, Need to set up the safety protection of the PDF documents, we suggest using Adobe Acrobat operation, on the one hand, because Adobe Acrobat is more safe and reliable, and on the other hand, there are many third party plugin supporting Adobe Acrobat. Usually, the individual user use password protection document, open the PDF file you want to protect, click on the "advanced" menu, pointing to "security", select "use password encryption" can choose to encrypt the current PDF files and to set the password protection with PDF converter for mac. What you need to pay attention to is the password including open a file password and restrict user print, editing functions password, so, no password can not open the file, and if only install function limit password, everyone can open the file, but only know the password can print, edit the document.