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Adobe Acrobat 9 Pro "User Password" encryption principle analysis Tian Yi love 2010-11-23 There are very few articles on pdf file encryption principles that can be found on the Internet. Even if there is only an analysis of encryption in versions earlier than 9.0, most pdf password cracking tools are helpless to files encrypted in Versions later than 9.0, this time, we will only briefly describe the princip

(reproduced, window8.1/64bit System Pro-Test available) 1. Delete C:\Program Files\Common Files\adobe\adobe pcd\cache\cache.db and C:\Documents and Settings\All Users\Application Data\flexnet\adobe_00080000_tsf.data (C:\ProgramData\FLEXnet\adobe_00080000_tsf.data under Windows 8/windows 7/vista System) ) Two record files. It is important to note that the second file is a hidden file, so set the show hidden file first. 2. Then change the Hosts file. Join in C:\windows\system32\drivers\etc\hosts

Turn from: http://linuxtoy.org/archives/9-free-python-books.html The last time I introduced 4 free Perl language programming books, I would like to recommend 9 free Python language programming books to help you learn Python programming. A Byte of Python by Swaroop C H A ver

Sound and fast, 9 places for free learning programming, free learning Programming Original Http://www.iteye.com/news/29631 Code.org is a non-profit organization in the United States, with the support of some tech giants, is planning to bring high-quality computer science courses into schools. However, it doesn't have to be motivated to learn coding with the supp

9 free cross-browser testing tools and 9 browser testing tools Website developers often need to check the compatibility of the website in various browsers to ensure that the work of the website works perfectly in all browsers. To this end, there are a lot of cross-browser testing tools that can help developers check their website before their website is. Here is

also a large number of free courses for beginners to choose! 7. Udacity Udacity is another good resource to enable your coding cognition. Some guiding courses are charged, with dedicated personal instructors to help you develop your skills and potential in the right direction. The key is that browsing their courseware resources is free of charge. 8. Google University Consortium If you want to learn progr

Document directory 9 free Windows Remote Assistance software 9 free Windows Remote Assistance software Ugmbbc was published on 06:42:38 | 22446 views Font: large and small print preview Thanks for posting the Polaris blogWhen you suddenly encounter a problem when using your computer, you cannot solve it by yourse

Whether it's PSD material or icons, we like to find high-quality free files and share them with our readers. We will search for the best resources and share them with you so that you don't have to find them on your own websites. This will save you time and help you focus on the most important tasks. Today, we have collected some of the latest free fonts.Articles you may be interested in Font treehouse:

of the features and options look like a simple interface. This also helps to change the video format you've just created or recorded, as well as many other multimedia applications, and Camtasia Studio 9 offers HD and FHD powerful screen recording capabilities. Camtasia Studio 9 is stunning software that allows users to confirm that content will be delivered now and later. Everyone can make wonderful video

Many people want to add beautiful icons to their systems or blogs. on the following websites, you can find your favorite Web2.0 icons, which are free for personal non-commercial use. All icons are designed based on a variety of themes and purposes. 1.Free Web icons There are more than 15000 free high-quality icons for you to download and use. 2.Web site iconsTh

displayed in the background, just like the built-in convenience of the program. Its powerful plug-ins include all the functions that can be implemented on the Internet. WordPress is currently the most advanced blog program. Currently, most of the programs developed are based on it. It can better grasp the search engine. After you use WordPress and master several plug-ins, you don't have to worry too much about optimization. It will think more. Author: Alexander Ru vornicescu | March 22,200

| download) 　　 5. SYMFONI Symfoni is a free website template based on fixed-width two-column layout and uses the HTML5 DOCTYPE. (Demo | download 　　 6. TRI A responsive website template design framework. (Demo | download) 　　 7. PROXIMET Proximet is a free HTML5/CSS3 response template that is compatible with mainstream browsers, smartphones, and tablets. You can see the effect by adjusting the browser

IBM released the DB2 database software version 9th. Its free version can run on a two-way dual-core processor server and supports a maximum of 4 GB memory, supports 32-bit Windows operating systems and 32-bit and 64-bit Linux operating system software. The details are as follows:Download the DB2 9 express-C database software for 32-bit Windows;Download the DB2 9

Http://www.iteye.com/news/6306-9-free-open-source-bug-tracking-software A Web application or software will inevitably have a bugs in its development process, so the bug tracking software is particularly important in the development stage. Whether you are alone or not, you can use the bug tracking software to save a lot of time. The following are nine free and op

Response design is almost the standard of modern web sites, developers to build a good site to test their response to change the effect of the need for a large number of test equipment to ensure that the Web page will not be a problem, but take a lot of actual equipment to test is not realistic. Under this demand, a number of practical and reliable response Web site testing tools have been spawned, most of them free of charge, freeing developers from

, pop-up a form.This CSS3 implementation of the progress bar is displayed on the button, can more intuitively reflect the progress of the user submitted, the CSS3 progress bar button style is very beautiful. In support of 3D browser can also have three-dimensional effect, and the progress bar shows a lot of form. Altogether 18 styles.Online Demo source code downloadThe above is the 9 creative HTML5/CSS3 progress bar animation, small series often use t

do not despise the art of the name, unless you can control the art design, but also hold the front-end project worthy of called "art", foreign gods are design technology together.18. Do not feel inferior because it is a training course, do not feel like learning to point software, to a certain enterprise to do some design really feel that they are a designer.19. Designers need deep thinking, deep reading, and even meditation and meditation. Most of the time every day is to greet the image, so t

Free points: http://download.csdn.net/detail/yangwei19680827/7010727 After several days of collection, many HTML5 tutorials and applications have been added to the html5tricks website. Today I have summarized several fascinating HTML5/CSS3 application special effects, we will share a total of nine HTML5 special effects.1. HTML5 WebGL amazing HTML5 Canvas wave wall In HTML5 special effects, we have already shared two models related to water waves: HTML

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