repair corrupted pdf file

There may be a problem with the downloader code, causing the PDF file to become corrupted The PDF file in the server is healthy: Verified by direct FTP download. Some of the code for the downloader is as follows: $file _size = fi

Well, let's talk about the cause of the crash:Use Redhat 5.9 Linux as database server, Friday database is in use, hard shutdown causes database file partial corruption (in Monday, the application does not start up, when viewing the log file, a data table mapping failed)Query tables are found to be normal when querying data files using PL/SQL, but can cause crashes when using the where restriction condition(

" , according to the tips, Click add sample " Select a normal-to-play avi video file, after adding, the software will automatically start scanning repair. 　　4 , soon after the progress of the software, the left side of the screen began to appear some with thumbnails avi format file, this time wait for it to scan to 100% End　　6 , after the scan is comp

The following articles mainly describe how to correctly repair corrupted MySQL Data Tables. There are two methods: checktable and repairtable, and myisamchk and isamchk, mySQL (the best combination with PHP) database errors caused by power failure or abnormal shutdown are very common problems. There are two methods: The following articles mainly describe how to correctly

For system files, most Win7 system users are not unfamiliar. The system file refers to the folder where the main operating system files are stored, and the files in the folder directly affect the normal operation of the system, most of which cannot be changed arbitrarily. However, some users in the process of operating system, found that there are some corrupted or missing system files, then how should we d

Do you often encounter problems with computer files when you are using a computer? Sometimes because we mistakenly deleted a part of the file, in cleaning up the computer thought is not the use of the file, but we deleted, this will lead to the phenomenon of file loss, or because of external factors, virus intrusion and so on, These reasons will cause some loss o

TableName. MYIFor testing, if needed, you can use:MYISAMCHK-OF TableName. MYIFor a detailed parameter description of the MYISAMCHK, refer to its use Help. Note that when making modifications, you must make sure that the MySQL server does not have access to the data sheet, and that it is best to shutdown the MySQL server in case of an inspection.－－－－－－－－－－－－－－－－－－－－－－－－－－－－－Alternatively, you can put the following command in your rc.local before starting the MySQL server:[-x/tmp/mysql.sock] /pat

Method One, modify directly in command mode 1, Myisamchk To fix the MySQL database, there is also a command: Mysqlcheck Mysqlcheck-a-c-o-r–all-databases-uroot-p//This command is the best way to optimize all DB databases. The meaning of the parameters is as follows:-A = analyse given tables.-c = Check table for errors-O = Optimise table-r = Can fix almost anything except unique keys that aren ' t unique If it is under the win host, repair the spec

Tag: The file system structure on the \DEVICE\HARDDISKVO disk is corrupted and cannot be used. Run the Chkdsk utilityProblem phenomenon:"The file system structure on disk is corrupted and cannot be used. Please run the Chkdsk utility on volume \device\harddiskvolume2. ”Analysis:There are three situations in which this

worse. On the other hand, the repair option is usually secure, but its changes to your data files cannot be undone. For this reason, we strongly recommend that you first make a backup when trying to repair a corrupted table file and ensure that your MySQL service is disabled before the backup is made. There are three

permissions issues. The solution for the "corrupted files" prompt under the Windows7 system is as follows: First, we look at the Win7 system on the contents of the prompts to determine where the file directory, is due to what the program caused. As shown in the following figure, the picture illustrates the awc.exe-corrupted

Always remember to back up your files before you change or fix them! For a variety of reasons, there will always be a corrupted download file, and you may need to download the Sf-iom mod to do the work in accordance with this guide. Download the MoD's compressed package and unzip it to a location on your hard disk. Repair

The destruction of Linux system files often occurs, usually causing file corruption is due to the super block is damaged, super block is the important location of the file system, which contains the system file status, free disk blocks and other information. When the file system is

How can I check if the MySQL data file is corrupted? This may be a problem that many people have encountered. It doesn't matter. The following describes how to check the corrupted MySQL Data File. Due to temporary power failure, kill-9 can be used to stop the MySQL service process, and all these may destroy MySQL data

Double-click the mobile hard disk, U disk or computer local hard drive, pop-up "inaccessible, file or directory corruption and unreadable"! My God, what about the homework inside? What about dozens of g photos? What about the hundreds of G film?! Don't be afraid ~ This article teaches you how to solve the "file or directory corruption and unreadable" problem! Simple and practical

1. If the compressed file is downloaded from the Internet, it is likely that the website provides itself with a corrupted compressed file. If it is still corrupted after downloading, it can be downloaded from another Web site. 2. Try to repair the damaged

This causes two kinds of reasons, one is that the compressed file on the site is bad, and the second is due to the network or the reason of the download, resulting in the download of the compressed package is incomplete, data loss. Workaround: 1. Download in a different time period. 2. Use RAR Recovery Toolbox or advanced RAR repair to repair these two too

Knowledge Point Analysis: In the lower-right corner of the taskbar, eject the windows-delay write failure or the xxx-corrupted file to run the Chkdsk tool. Operation Steps: Method One: Chkdsk tool Enter CMD at the start---run, and then enter CHKDSK C:/F to run to repair the error on the E disk and find the bad sector to recover the rea

or corrupted system files. 2. Windows resource Protection cannot perform the requested operation. To resolve this issue, execute the System File Checker in Safe mode and make sure that the Pendingdeletes and Pendingrenames folders exist under%windir%winsxstemp. 3. Windows resource protection found corrupted files and successfully repaired them. Details are in

When a file is passed over a network, it is common for users to compress the transmitted file into a self-extracting file to facilitate others to open it. In addition, when downloading files on the Internet, you often experience self-extracting files. Repairing a corrupted self-extracting