Problem to zip a file

in the file management when i select a file and zip it , the size of the file does not change ?
Solved!
Go to Solution.

I just tried to zip a couple of pdf files, several pictures and all the files size's change. It is possible that the file you are trying to zip might already be compressed. I am sure that the built in zip feature is not setup for super high compression. Where you notice a big diffrence is when you select a lot of files and zip it..
Bellow is a picture that was zipped.. It did compress the file size. But the file was already compressed when I downsized the image for the z10. Try other files on your device to see if they all have the same issue.

Similar Messages

Problems compressing/Zipping a file

Hi Guys,
I'm having some issues Zipping up a file - I need to upload a file and the maximum capacity for the file to be uploaded is 200mb. Its part of an online course that I'm taking and all project submisions need to be in today - I can't figure out what the problem is because theres a few of us taking the course and they have all managed to compress and zip up their files to an appropiate size yet every time I try and compress/zip mine (which is the same file that every one else has) the smallest file size I can manage is 369mb when it needs to be less than 200mb - Can any one please help or shed some light on this - It would be greatly appreciated.
Look forward to some ideas - Bes Regards, Lillyman

Its an Ableton Live Project File - The format is .ALS
Sorry guys should have mentioned this in the first place.
Thanks,
Lillyman

Problem in ZIP file encryption

Hi Folks,
I am facing a problem while encrypting and decrypting a ZIP file. The result file is corrupted.
If i encrypt .txt and .doc files, i am able to get them in decryption. But problem with ZIP files. What could be the reasone?
I am using AES algorithem.
Key Generator code is:
================
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128); //128 bitskey = kgen.generateKey();
Encryption:
========
Cipher ecipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
//paramSpec is a Initialization Vector
ecipher.init(Cipher.ENCRYPT_MODE, skey, paramSpec);
FileInputStream in = new FileInputStream("c:\\encryption\\Source.zip");
FileOutputStream out = new FileOutputStream("c:\\cipher\\cipher.enc");
OutputStream cout = new CipherOutputStream(out, ecipher);
int numRead = 0;
while ((numRead = in.read(buf)) >= 0) {
cout.write(buf, 0, numRead);
Decryption:
========
Cipher dcipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
dcipher.init(Cipher.DECRYPT_MODE, skey, paramSpec);
FileInputStream fis = new FileInputStream("c:\\cipher\\cipher.enc");
InputStream in = new CipherInputStream(fis, dcipher);
FileOutputStream fos = new FileOutputStream("c:\\encryption\\Result.zip");
int numRead = 0;
while ((numRead = in.read(buf)) >= 0) {
fos.write(buf, 0, numRead);
}

bala_1404 wrote:
i closed them in the program. i just pasted important lines of my program.You have a program that does not work and you don't know why yet you feel confident enough in your diagnosis to show just the lines where you think the problem lies. I'm betting that you are closing the wrong streams but of course I am guessing since I can't see the code that matters.
Good luck.

Waas caching problem with zip files

hi,
When we send same zipped file to branches, waas does not cache that file, without zipping waas caches the file. Is there any restrictions for zip file?

Hi Muhammed,
When you say that WAAS is not caching, I guess you mean that the optimization achieved is much lower than without zipping the file. Am I correct?
If that is the case, then, I'm afraid it's the expected behavior. The cause for this is DRE
In general terms, the way DRE works is by caching small chunks of a file. Later on, when these chunks are seen again in the file (either in the same connection or subsequent ones), they will not be transferred through the WAN link and instead, a chunk identifier (very small) will be sent. The problem is that all compression algorithms work in a similar way, removing repeating parts of the file to make it smaller.
The result is that, any file that is encrypted/compressed has almost no repeating patterns in it, and therefore, even though DRE is applied, the reduction ratios are minimal, sometimes even getting to the point of making transfer even slower than without it.
As a general good practice, if you are using WAAS to optimized your data transfers, make sure that the files you are transferring are neither compressed nor encrypted. This way you will get the maximum optimization ratios out of WAAS.
I hope this answers your question
Daniel

I have to zip pdf files to email them to someone with a PC. The problem is they aren't smaller after zipping and I can't email them. I tried adjusting the Quartz filter to the Reduce file size. Now they're smaller, but the recipient can't read them. Help!

I need to zip pdf files to email them to a PC user. The problem is file size is not reduced.
I tried zipping them in Win 7 (which I use via Parallels 7) and sending them to the Finder to email.
But lately nothing is reduced. I tried choosing the Reduce File Size option in the Quartz Filter when I save the doc. The file size was reduced. However, the recipient could not read the file. Everything was blurry.
Is there a solution?

I am having some PDF sizing issues also, I am a BETA tester for TurboCAD Mac, and with the usage of (public) version 5, I have had some scaling issues. I have had (auto sent) 15 plus crash reports, (available as text) and had posted my scenario within the "lion- problems so far" article, so not to use up extra bandwith- or whatever- there are pictures there. I was not able to upload a PDF on site, and the staff @ Turbo CAd is working on it also. this is Lion specific new update, as I have posted many large format PDF's
Here (edit to add url)
Thanks for the helps!
Johnny

HT1338 I have a problem with opening downloaded files from the internet; zip types. Can you tell me an app to open these types of formats of files?

I have a problem with opening downloaded files from the internet; zip types. Can you tell me an app to open these types of formats of files?

It should unzip if you double-cick.
What are you seeing happen when you do that?
Select a .zip file in the Finder and Get Info (cmd-i). What is set for it to Open With. It should be Archive Utility.

Strange problems with Zip Files in Captivate/SumTotal

Ok, this is a weird one. If I publish a 1.2 SCORM course and select the zip folder option, our (horrible) SumTotal 7.6 system has no problems uploading the course. If I publish to a folder or to my desktop and place all the files in the folder and zip the file, it doesn't track as SCORM at all.
I get the same results on the ADL Test Scorm tracker. When the zip folder is uploaded, it reads as SCORM compliant. When I publish to an upzipped folder and then zip it, I get a ton of XML file not well formed and other xml errors.
The issue is that I need to make changes to the imsmanifest file to remove the SumTotal Navigation Player and resize the screen properly for the course.
The zip program we are using is "ZipGenius".
1.) Has anyone else run into this issue?
2.) Any ideas on how to fix this so that I can make changes to the imsmanifest file and still upload the course as 1.2 SCORM compliant?
Thanks,
Dan

Kevin,
At first, I would have thought the LMS doesn't necessarily return the appropriate information for Captivate to send a score (there are several basic calls that are supposed to be sent by an LMS in SCORM to facilitate this). So, I created a custom HTM file for the Captivate 4 template... But in re-reading the thread - you are using SumTotal and I believe SumTotal does make these calls...
For the purposes of anyone else that is using an LMS and not seeing a score in their LMS (and they are using this custom template) - here is a Captivate 4 template file that forces Captivate to send a score to a SCORM LMS (though not necessarily SCORM-compliant LMS - if these calls are ignored): http://www.learningconsulting.com/Content/Macromedia/Captivate/SumTotal_Captivate4_SCORM_C ustom.zip
Kevin - I do not necessarily believe this custom template will work for you. I can send you an entire debug file I've built for helping to track down AICC/SCORM issues - but let's hold off on that, for now. Can you edit the resulting HTM file of one of your published Captivate file built using the SCORM template I've provided earlier; modify the last line in the method sendTrackingDataToLMS; uncomment out the alert statement (remove the "//"). I'd like to know what is displayed when you close the content window from SumTotal.
Regards,
Andrew

Help with util.zip up files... does not work

I am writing a program so my mum can zip up new photos she takes and then send them to me. The program creates a html file for the webpage plus a smaller version of her original photo and places them all in a 1 folder with a new name. Al this part works... I want to afterwards place my files in a zipped up folder that she can e-mail me with her normal client. How... I picked up this code on the net and have changed it to incoporate my parameters. The files which are created ..paths are (String in an String[]) I then send to my zipping method.
The zip file is created but does not work when I try to extract from it ??? I also know that the String [] works becuse I have made a loop to check its properties at each index.
what am I doing wrong?
This is a modified code I found on the internet but with no author??
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.*;
public class Test{
    private File zipDir;
    private String[] filename;
    public Test(String[] recivedFilename){
        filename = recivedFilename;
        try {
            ZipOutputStream zos = new
                    ZipOutputStream(new FileOutputStream("c:\\curDir.zip"));
            from,
            zipDir("c:\\batviapictures\\", zos);
            zos.close();
        } catch(Exception e) {
            //handle exception
    public void zipDir(String dir2zip, ZipOutputStream zos) {
        try {File
            zipDir = new File(dir2zip);
            String[] dirList = filename;
            byte[] readBuffer = new byte[2156];
            int bytesIn = 0;
            //loop through dirList, and zip the files
            for(int i=0; i<dirList.length; i++) {
                File f = new File(zipDir, dirList);
if(f.isDirectory()) {
String filePath = f.getPath();
zipDir(filePath, zos);
continue;
FileInputStream fis = new FileInputStream(f);
ZipEntry anEntry = new ZipEntry(f.getPath());
zos.putNextEntry(anEntry);
while((bytesIn = fis.read(readBuffer)) != -1) {
zos.write(readBuffer, 0, bytesIn);
fis.close();
catch(Exception e) {

I make no guarantees that this will completely solve all your problems, but I just know these calls are needed but missing from your OP:
try {
    ZipOutputStream zos = new
                    ZipOutputStream(new FileOutputStream("c:\\curDir.zip"));
                    from,
                    zipDir("c:\\batviapictures\\", zos);
    zos.flush(); // ADD THIS after all files have been written to the zos
    zos.close();
} catch(Exception e) {
    //handle exception
}And
while((bytesIn = fis.read(readBuffer)) != -1) {
    zos.write(readBuffer, 0, bytesIn);
zos.closeEntry(); // ADD THIS after each file is written to the zos
fis.close();

Problems uncompressing compressed jar files

Hi all,
I am seeing an unusual issue where some entries don't have full header info. By this I mean, according to the ZIP spec, it is possible that the header info is stored before the file data, so you CAN get the right info. But sometimes, it can be stored as an EXT header, where it is some place AFTER the compressed file data.
So most of the time we are getting good size/comrpessed size info and can properly get the entry out of the zip file. But sometimes, we get -1 values and are not able to get the entry at all.
We are working on allowing a classloader to get classes out of an "embeded" zip/jar file. In other words, a jar file can contain embeded zip/jar files (only 1 level deep), and our classloader not only finds the classes of the main jar file (using the URLClassLoader capabilities, but if a class being looked for is not found in the main jar file, we then try to find it in any embeded jar/zip files. Finding the classes is fine, trying to create .class files out of the compressed data from an embeded jar/zip is the problem.
We are getting NegativeArraySizeExceptions thrown.
URLConnection connection = resURL.openConnection();
byte[] classData = new byte[connection.getContentLength()];
InputStream input = connection.getInputStream();
The resURL points to an embeded jar/zip within the outer jar file. The exception is thrown in the 2nd line above, when we try to create the byte[] array to hold the class data. The getContentLength() returns -1.
Any help would be appreciated. Thanks.

ZipInputStream only reads the local file header (LFH) of an entry if getNextEntry() is called, when the size and compressed size are not in the LFH becourse the sizes were unknow when the LFH was written the sizes are set to -1 and a flag is set to indicate that the entry has an EXT header after the data which contains the sizes.
So I think the only thing you could do at the moment it to write an extension of ZipInputStream that checks if the flag is set and then looks for the EXT header to get the sizes but the difficult part is to get the data, ZipInputStream uses a PushbackInputStream to read the data but that InputStream doesn't support the mark method.
Good luck.

File not found Exception when zipping a file

Hello I seem to have run into a problem when trying to zip a directory.
I get the error:
java.io.FileNotFoundException: C:\Users\dojo\Documents\Programming\compress (Access is denied)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:179)
at java.io.FileOutputStream.<init>(FileOutputStream.java:70)
at ZipUtility.zip(ZipUtility.java:31)
at ZipUtility.main(ZipUtility.java:21)
when i run the code
import java.io.File;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import java.io.*;
public class ZipUtility {
     public ZipOutputStream cpZipOutputStream = null;
     public String strSource = "";
     public String strTarget = "";
     public static long size          = 0;
     public static int   numOfFiles    = 0;
     public static void main(String args[]) {
          ZipUtility udZipUtility = new ZipUtility();
          udZipUtility.strSource = "C:\\Users\\dojo\\Documents\\Programming\\compress\\restoreDump"; //args[0];
          udZipUtility.strTarget = "C:\\Users\\dojo\\Documents\\Programming\\compress"; //args[1];
          udZipUtility.zip();
     public void zip(){
          try          {
               File cpFile = new File (strSource);
               if (!cpFile.isFile() && !cpFile.isDirectory() ) {
                    System.out.println("\nSource file/directory Not Found!");
                    return;
               FileOutputStream fos = new FileOutputStream(strTarget);
               cpZipOutputStream = new ZipOutputStream(fos);
               cpZipOutputStream.setLevel(9);
               zipFiles( cpFile);
               cpZipOutputStream.finish();
               cpZipOutputStream.close();
               System.out.println("\n Finished creating zip file " + strTarget + " from source " + strSource);
               System.out.println("\n Total of " + numOfFiles +" files are Zipped " );
               System.out.println("\n Total of " + size + " bytes are Zipped ");
          }     catch (Exception e){
               e.printStackTrace();
     public void zipFiles(File cpFile) {
          int byteCount;
          final int DATA_BLOCK_SIZE = 2048;
          FileInputStream cpFileInputStream;
          if (cpFile.isDirectory()) {
               if(cpFile.getName().equalsIgnoreCase(".metadata")){ //if directory name is .metadata, skip it.
                    return;
               File [] fList = cpFile.listFiles() ;
               for (int i=0; i< fList.length; i++){
                    zipFiles(fList) ;
          else {
               try {
                    if(cpFile.getAbsolutePath().equalsIgnoreCase(strTarget)){
                         return;
                    System.out.println("Zipping "+cpFile);
                    size += cpFile.length();
                    //String strAbsPath = cpFile.getAbsolutePath();
                    numOfFiles++;
                    String strAbsPath = cpFile.getPath();
                    String strZipEntryName = strAbsPath.substring(strSource.length()+1, strAbsPath.length());
                    //byte[] b = new byte[ (int)(cpFile.length()) ];
                    cpFileInputStream = new FileInputStream (cpFile) ;
                    ZipEntry cpZipEntry = new ZipEntry(strZipEntryName);
                    cpZipOutputStream.putNextEntry(cpZipEntry );
                    byte[] b = new byte[DATA_BLOCK_SIZE];
                    while ( (byteCount = cpFileInputStream.read(b, 0, DATA_BLOCK_SIZE)) != -1)
                         cpZipOutputStream.write(b, 0, byteCount);
                    //cpZipOutputStream.write(b, 0, (int)cpFile.length());
                    cpZipOutputStream.closeEntry() ;
               } catch (Exception e) {
                    e.printStackTrace();
I really have no idea why its saying access denied if anyone can help that would be great.

son_goku
Read the stack trace from the bottom up. It's telling you that the error, or exception arose
at ZipUtility.zip(ZipUtility.java:21)
which is udZipUtility.zip();This line called the zip() method which threw an exception
at ZipUtility.main(ZipUtility.java:31)
which is FileOutputStream fos = new FileOutputStream(strTarget);What is the value of strTarget?"C:\\Users\\dojo\\Documents\\Programming\\compress"This is a folder, isn't it?
Read the javadoc for public FileOutputStream(String name)
       throws FileNotFoundException
If the file exists but is a directory rather than a regular file, does not exist but cannot be created, or cannot be opened for any other reason then a FileNotFoundException is thrown.
Regards, Darryl

Downloaded my harry potter audiobooks in zipped mp3 files. Trying to unzip them one book at a time to put into itunes to put onto my iphone 6

I downloaded my harry potter audiobooks in zipped mp3 files. Trying to unzip them one book at a time to put into iTunes for windows to put onto my iphone 6+.

mbstevens1152 wrote:
Sorry, I should have been more complete in my question. I have done the steps you have listed, the files are not showing up in my iTunes anywhere. I'm obviously doing something wrong, but I cannot figure out what it is. Everything I find online seems to be for older systems then Windows 8.1. I was hoping that might be my problem. Any additional insight or suggestions is appreciated.
MB,
After you do the unzip operation, can you see the MP3s on your computer? What happens when you right-click the MP3 and choose Open With > iTunes?

Problem generating RoboHelp AIR file

Hi:
I installed the RoboHelp Packager for Air to work with my
Adobe RoboHelp 7 on Windows XP Professional.
I get a "WebHelp folder could not be copied" message after I
click the "Generate" button in the AIR wizard. It does show me the
progress bar with the title "Generating AIR Package", but after a
few minutes, I get the "WebHelp folder could not be copied"
message. And then another message "The Adobe AIR package could not
be generated".
My WebHelp folder is 80MB and contains 3700 files and 43
subfolders.
However, if I keep all the AIR wizard settings same but
change ONLY the WebHelp folder location to the generated output of
the CustomerCare sample RoboHelp project (2 MB; 224 files and 8
folders), then the AIR file is successfully generated.
So this leads me to believe there is a limit on the size of
the WebHelp folder to generate the AIR file successfully. Does
someone know what is this upper limit?
Also, I ruled out the possibility of the WebHelp file
path/location being the problem because my 80 MB WebHelp folder
that did not work was in D:/ABCD/WebHelp while the RoboHelp
CustomerCare 2MB WebHelp folder that worked was in C:\Documents and
Settings\All Users\Documents\Documents\Adobe\Adobe RoboHelp
7\RoboHTML\Samples\CustomerCare\!SSL!\WebHelp_US.
I also tried moving my 80MB WebHelp folder to D:/WebHelp. No
luck. Same Error.
Any ideas?
-K

Hi,
The issue which Geoff was facing has been resolved. I thought of passing the same information to the user forum, so that other users can benefit from this as well.
The main problem which Geoff was facing was links were not working as expected for some of the popups in case of RHA file.
The problem was in the file-names for the popup topics, The name of some of the popup topic file was having a unicode charcter in the file-name. Since RHA is basically a zip file, the unicode name was not getting saved properly in the zipped RHA file. Changing the name of popup topic file (topic properties dialog), solved the problem of link break.
As a thumb of rule, Users should try to keep the file names as simple ASCII characters, to avoid any unforseen issues. One more thing which is a problem is unicode file names having other issues when published on web-servers, as different browsers behave in different ways for unicode characters in web URL.
One more question which also came up was how to ensure a proper order of labels shown in help application, in case of multiple help files.
Well RoboHelp AIR Help application uses the id attribute provided in the helpcfg file to acertain the order of all the help files. So changing the id attribute also changes the order of Label in the AIR application.
I hope it will help other users going forward.
Thanks
Praful

How to store ZIP & JAR files.

I am succeeded in storing & then sending big files as an attachment except for ZIP & JAR files.Can anyone guide me what's the problem with ZIP & JAR files

Hi sachin !!
I m facing problem in big size attachments ..
it always give me exception
javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: 552 Message size exceeds fixed maximum message size
at javax.mail.Transport.send0(Transport.java:218)
at javax.mail.Transport.send(Transport.java:80)
at MailTest.postMail(MailTest.java:82)
at MailTest.main(MailTest.java:19)
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File size upto 1 mb work fine , but file with 2mb size gives me problem ..
Plz reply me Fast , waiting :)
thanx
Regards
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Java.lang.IndexOutOfBoundsException when zipping larger files

i get the error:
java.lang.IndexOutOfBoundsException
at java.util.zip.ZipOutputStream.write(ZipOutputStream.java:261)
at compress.zipEntry(compress.java:126)
at compress.Create_Zip_File(compress.java:84)
at Test.backup(Test.java:101)
at Test.<init>(Test.java:37)
at Test.main(Test.java:149)
when zipping a file which is 349MB in size I think this might be because it trying to store the file in the memory and the file is too large.What can I do to not store it in memory or if im wrong can someone point me in the right direction.
Thanks.
FileOutputStream zipFile = null;
    ZipOutputStream zipOut = null;
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       throws Exception
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       // its contents, including the contents of
       // subdirectories at all levels.
       System.out.println("Directory \"" + dir.getName() + "\"");
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       files = dir.list();
       for (int i = 0; i < files.length; i++) {
       File f; // One of the files in the directory.
       f = new File(dir, files);
if ( f.isDirectory() )
// Call listContents() recursively to
// list the contents of the directory, f.
listContents(Zip_File, f, out);
else
// For a regular file, just print the name, files[i].
zipEntry(Zip_File, f, out);
} // end listContents()
public void Create_Zip_File(File Zip_File,File[] To_Be_Zipped_Files,
boolean Skip_Dirs)
try
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FileOutputStream stream=new FileOutputStream(Zip_File);
ZipOutputStream out=new ZipOutputStream(stream);
for (int i=0;i<To_Be_Zipped_Files.length;i++)
//if (To_Be_Zipped_Files[i]==null
// || !To_Be_Zipped_Files[i].exists()
// || (Skip_Dirs ))
// continue;
System.out.println("Adding "+To_Be_Zipped_Files[i].getName());
zipEntry(Zip_File, To_Be_Zipped_Files[i], out);
out.close();
stream.close();
System.out.println("Finished zipping : "
+ Zip_File.getAbsolutePath());
catch (Exception e)
e.printStackTrace();
System.out.println("Error: " + e.getMessage());
return;
private void zipEntry(File Zip_File, File file, ZipOutputStream out)
throws Exception
if (file.isDirectory())
listContents(Zip_File, file, out);
return;
int BUFFER_SIZE=10240000; // 10 M
byte buffer[]=new byte[BUFFER_SIZE];
// Add archive entry
ZipEntry zipAdd=new ZipEntry(file.getAbsolutePath());
//zipAdd.setTime(file.lastModified());
out.putNextEntry(zipAdd);
// Read input & write to output
FileInputStream in=
new FileInputStream(file.getAbsolutePath());
int len;
int nRead=in.available();
while((count = in.read(buffer, 0, BUFFER_SIZE)) != -1)
out.write(buffer, 0, nRead);
// System.out.println("loop ");
in.close();
out.closeEntry();

of course!!Thanks problem solved:DI don't see how - it is very very wrong!
    private void zipEntry(File Zip_File, File file, ZipOutputStream out)
    throws Exception
        if (file.isDirectory())
            listContents(Zip_File, file, out);
            return;
        int BUFFER_SIZE=4094;
        byte buffer[]=new byte[BUFFER_SIZE];
        // Add archive entry
        ZipEntry zipAdd=new ZipEntry(file.getAbsolutePath());
        //zipAdd.setTime(file.lastModified());
        out.putNextEntry(zipAdd);
        // Read input & write to output
        InputStream in= new BufferedInputStream( new FileInputStream(file.getAbsolutePath()), BUFFER_SIZE);
        for(int count = 0; (count = in.read(buffer)) != -1;)
            out.write(buffer, 0, count);
        in.close();
        out.closeEntry();
    }Message was edited by:
sabre150

How can I download zipped CSV files in Firefox and ensure this happens automatically in future?

When I attempt to download a zipped CSV file in Firefox, the usual pop-up window appears asking what Firefox should do with this file... even after I select "Open with" and choose my Zip File Manager and tick the box that says "Do this automatically for files like this from now on", this pop-up continues to appear every time I come to download files

@Corel
Thanks, I had forgotten all about potential server side problems.
@Conners81 <br/>
If sample problem files and links are publicly available maybe you could include an example of the link being used, preferably to one of the smaller simpler files.
*What is the website you are using?
For comparison an example you may like to try
* site providing .csv data [http://www.ofcom.org.uk/static/cmr-10/WAL-3.4.html]
** a small few lines csv download file [http://www.ofcom.org.uk/static/cmr-10/csv/WAL-3.4.csv]
** similar info as a pdf chart [http://www.ofcom.org.uk/static/cmr-10/pdfs/WAL-3.4.pdf]
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Problem to zip a file

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