Unzip file size

Is there a way for me to know the size of an unzipped file before unzipping it?

I don't think there is any way apart from adding the sizes of each ZipEntry's uncompressed size. This isn't at all bad when you are accessing a zipfile through a ZipFile (since this accesses the zip as a random access file). (This is as fast as you can get unless the information is stored elsewhere which I believe is not the case)
If you do the summation via a ZipInputStream then it will decompress the results anyway
asjf

Similar Messages

A simple and free way of reducing PDF file size using Preview

Note: this is a copy and update of a 5 year old discussion in the Mac OS X 10.5 Leopard discussions which you can find here: https://discussions.apple.com/message/6109398#6109398
This is a simple and free solution I found to reduce the file size of PDFs in OS X, without the high cost and awful UI of Acrobat Pro, and with acceptable quality. I still use it every day, although I have Acrobat Pro as part of Adove Creative Cloud subscription.
Since quite a few people have found it useful and keep asking questions about the download location and destination of the filters, which have changed since 2007, I decided to write this update, and put it in this more current forum.
Here is how to install it:
Download the filters here: https://dl.dropboxusercontent.com/u/41548940/PDF%20compression%20filters%20%28Un zip%20and%20put%20in%20your%20Library%20folder%29.zip
Unzip the downloaded file and copy the filters in the appropriate location (see below).
Here is the appropriate location for the filters:
This assumes that your startup disk's name is "Macintosh HD". If it is different, just replace "Macintosh HD" with the name of your startup disk.
If you are running Lion or Mountain Lion (OS X 10.7.x or 10.8.x) then you should put the downloaded filters in "Macintosh HD/Library/PDF Services". This folder should already exist and contain files. Once you put the downloaded filters there, you should have for example one file with the following path:
"Macintosh HD/Library/PDF Services/Reduce to 150 dpi average quality - STANDARD COMPRESSION.qfilter"
If you are running an earlier vesion of OS X (10.6.x or earlier), then you should put the downloaded filters in "Macintosh HD/Library/Filters" and you should have for example one file with the following path:
"Macintosh HD/Library/Filters/Reduce to 150 dpi average quality - STANDARD COMPRESSION.qfilter"
Here is how to use it:
Open a PDF file using Apple's Preview app,
Choose Export (or Save As if you have on older version of Mac OS X) in the File menu,
Choose PDF as a format
In the "Quartz Filter" drop-down menu, choose a filter "Reduce to xxx dpi yyy quality"; "Reduce to 150 dpi average quality - STANDARD COMPRESSION" is a good trade-off between quality and file size
Here is how it works:
These are Quartz filters made with Apple Colorsinc Utility.
They do two things:
downsample images contained in a PDF to a target density such as 150 dpi,
enable JPEG compression for those images with a low or medium setting.
Which files does it work with?
It works with most PDF files. However:
It will generally work very well on unoptimized files such as scans made with the OS X scanning utility or PDFs produced via OS X printing dialog.
It will not further compress well-optimized (comrpessed) files and might create bigger files than the originals,
For some files it will create larger files than the originals. This can happen in particular when a PDF file contains other optomizations than image compression. There also seems to be a bug (reported to Apple) where in certain circumstances images in the target PDF are not JPEG compressed.
What to do if it does not work for a file (target PDF is too big or even larger than the original PDF)?
First,a good news: since you used a Save As or Export command, the original PDF is untouched.
You can try another filter for a smaller size at the expense of quality.
The year being 2013, it is now quite easy to send large files through the internet using Dropbox, yousendit.com, wetransfer.com etc. and you can use these services to send your original PDF file.
There are other ways of reducing the size of a PDF file, such as apps in the Mac App store, or online services such as the free and simple http://smallpdf.com
What else?
Feel free to use/distribute/package in any way you like.

Thanks ioscar.
The original link should be back online soon.
I believe this is a Dropbox error about the traffic generated by my Dropbox shared links.
I use Dropbox mainly for my business and I am pretty upset by this situation.
Since the filters themsemves are about 5KB, I doubt they are the cause for this Dropbox misbehavior!
Anyway, I submitted a support ticket to Dropbox, and hope everything will be back to normal very soon.
In the meantime, if you get the same error as ioscar when trying to download them, you can use the link in the blog posting he mentions.
This is out of topic, but for those interested, here is my understanding of what happened with Dropbox.
I did a few tests yesterday with large (up to 4GB) files and Dropbox shared links, trying to find the best way to send a 3 hour recording from French TV - French version of The Voice- to a friend's 5 year old son currently on vacation in Florida, and without access to French live or catch up TV services. One nice thing I found is that you can directly send the Dropbox download URL (the one from the Download button on the shared link page) to an AppleTV using AirFlick and it works well even for files with a large bitrate (except of course for the Dropbox maximum bandwidth per day limit!). Sadly, my Dropbox shared links were disabled before I could send anything to my friend.
I may have used a significant amount of bandwidth but nowhere near the 200GB/day limit of my Dropbox Pro account.
I see 2 possible reasons to Dropbox freaking out:
- My Dropbox Pro account is wronngly identified as a free account by Dropbox. Free Dropbox accounts have a 20GB/day limit, and it is possible that I reached this limit with my testing, I have a fast 200Mb/s internet access.
- Or Dropbox miscalculates used bandwidth, counting the total size of the file for every download begun, and I started a lot of downloads, and skipped to the end of the video a lot of times on my Apple TV.

UNZIP file from ABAP

Hi,
I have a requirement to retrieve a zip file from the FTP Server, unzip it to the SAP Server and process the unzipped files. Retrieving the data from the FTP server should work via FTP commands which can be executed from within an ABAP program. However, the problem is unzipping these files via ABAP and put them on the server as well. 1. How to do this from within an ABAP Program? (unix commands?)
2. Can I unzip these files with or without using the folder structure? (additional parameter for unix command?)
Kind regards,
Micky.

REPORT ZTESTUNIX line-size 400
                no standard page heading.
selection-screen begin of block ucmd with frame title text-001.
parameters: unixcom like   rlgrap-filename.   " ...SAP Interface file
selection-screen end of block ucmd.
data: begin of tabl occurs 500,
        line(400),
      end of tabl.
data: lines type i.
start-of-selection.
refresh tabl.
call 'SYSTEM' id 'COMMAND' field unixcom
                id 'TAB'     field tabl[].
describe table tabl lines lines.
loop at tabl.
    write:/01 tabl-line.
endloop.
skip 2.
if lines = 0.
    write:/ 'NO Occurances were found'.
else.
    write:/ 'Command was successfully executed' color col_total.
    write:/ 'Number of entries in Search' color col_total,
             lines color 6.
endif.
end-of-selection.
while running give the command as
<b>unzip test.zip -x dir</b>
then it will unzip test.zip file to dir called dir.
you can specify the filepath instead of file...
regards
vijay

What is the maximum file size allowed by Yosemite's Archive Utility?

I've seen radically different answers to this question, ranging from ".zip files have a 4GB size limit" to "no limit other than the OS maximum file size". It's been very difficult to find current info on this.
I have lots of large folders full of recording projects --- I'm talking up to 45GB or so --- and I've been experimenting with different methods of zipping them in preparation for cloud backup. Several applications have been willing to zip my enormous folders into archives, but then choke when unzipping them, telling me that the files cannot be unzipped or are corrupted. Using the "Compress" shortcut in the finder has so far yielded the best results, keeping all necessary resource forks, etc., and unzipping properly, even when other apps have insisted the files are corrupted. However, I'm afraid to continue with this procedure until I can get a straight answer on this issue: have I just been lucky so far? IS there an actual size limit?
...It only seems to work when I both zip and unzip with the Archive Utility. Other archiving apps will either render the included projects unreadable by my recording software when zipping (I suspect because of alteration or stripping of resource forks), or will refuse to read the giant .zip archives generated by Archive Utility.
I've set up the Archive Utility to produce .zip files, as I feel these are the most likely to be recognized by a variety of cloud storage services.ny
...Any guidance would be greatly appreciated!

Hi,
The 1,048,576 rows & 16,384 columns is the
workbook size limitation in Excel 2013. Thus, I recommend we try the Mr. Bernie's suggestions to import the large CSV file.
1. Use VBA to read the file line by line and split/examine the import file in sections. If you have further question about the VBA, please post your question to the MSDN forum for Excel
http://social.msdn.microsoft.com/Forums/en-US/home?forum=exceldev&filter=alltypes&sort=lastpostdesc
2. Use Excel 2013 add-ins. Power Pivot and Power Query. For more detailed information, please see the below articles:
http://social.technet.microsoft.com/Forums/en-US/9243a533-4575-4fd6-b93a-4b95d21d9b10/table-with-more-than-1-048-576-rows-in-power-query-excel-2013?fo
http://www.microsofttrends.com/2014/02/09/how-much-data-can-powerpivot-really-manage-how-about-122-million-records/
Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
Thanks
George Zhao
Forum Support
Come back and mark the replies as answers if they help and unmark them if they provide no help.
If you have any feedback on our support, please click "[email protected]"

When bouncing- what's best method for smallest file size/highest quality?

I am in the process of embedding 3 mp3's into a PDF to submit as a portfolio. The PDF also has text, and two scores included, and with the 3 embedded mp3's it can't be more than 10mb.
So my question is: When bouncing a project out of Logic, what is the best method for getting the smallest file size, but retaining the best audio quality? And once it's out of Logic and it is an mp3 or other type of audio file, is there a best format for compressing it further, and still maintaining the relative quality?
I bounced out the three projects into wav's. Now I am using Switch for Mac to compress them down to smaller Mp3's. I basically need them to be about 3 mb each. Two of the recordings sound OK at that size, but they are just MIDI(one project is piano and string quartet, the other is just piano- all software instruments. The recording that combines MIDI and Audio and has more tracks (three audio tracks and 10 Midi/software instrument tracks)and sounds completely horrible if I get it under 5 mb as an mp3. The problem is that I need all three to equal around 9mb, but still sound good enough to submit as a portfolio for consideration into a Master's program.
If anyone can help I would really appreciate it. Please be detailed in your response, because I am new to logic and I really need the step by step.
Thank you...

MUYconfundido wrote:
I am in the process of embedding 3 mp3's into a PDF to submit as a portfolio. The PDF also has text, and two scores included, and with the 3 embedded mp3's it can't be more than 10mb.
So my question is: When bouncing a project out of Logic, what is the best method for getting the smallest file size, but retaining the best audio quality?
The highest bitrate that falls within your limits. You'll have to calculate how big your MP3's can be, then choose the bitrate that keeps the size within your limit. The formula is simple: bitrate is the number of kilobits per second, so a 46 second stereo file at 96 kbps would be 96 x 46 = 4416 kbits / 8* = 552 kBytes or 0.552 MB. (*8 bits = 1 Byte)
So if you know the length of your tracks you can calculate what bitrate you need to keep it within 10 MB total.
I consider 128 kbps the lowest bearable bitrate for popsongs and other modern drumkit based music. Deterioration of sound quality is often directly related to the quality of the initial mix and the type of instruments used in it. Piano(-like) tones tend to sound watery pretty quickly at lower bitrates, as do crash and ride cymbals. But don't take my word for it, try it out.
And once it's out of Logic and it is an mp3 or other type of audio file, is there a best format for compressing it further, and still maintaining the relative quality?
You can only ZIP the whole thing after that, but that is just for transport. You'll have to unzip it again to use it. And no, you cannot compress an MP3 any further and still play it.
I bounced out the three projects into wav's. Now I am using Switch for Mac to compress them down to smaller Mp3's.
That is silly, you could have done that in Logic, which has one of the best MP3 encoders built in. And how good encoders are will especially come out at bitrates around or below 128, which you might be looking at.
I basically need them to be about 3 mb each.
So, one more scrap of info we need here: how long are those three pieces, exactly? I'll calculate the bitrate for you - but please bounce 'm directly out of Logic as MP3's. They will very probably sound better than your WAV-conversions made with Switch.
!http://farm5.static.flickr.com/4084/4996323899_071398b89a.jpg!
Two of the recordings sound OK at that size, but they are just MIDI(one project is piano and string quartet, the other is just piano- all software instruments. The recording that combines MIDI and Audio and has more tracks (three audio tracks and 10 Midi/software instrument tracks)and sounds completely horrible if I get it under 5 mb as an mp3. The problem is that I need all three to equal around 9mb, but still sound good enough to submit as a portfolio for consideration into a Master's program.
Length of the piece? And does the .Wav bounce you have sound OK?

Captivate file sizes

Using Captivate 8, have noticed that as you work on files they get bigger, even cutting EVERYTHING out down to a simple slide does not reduce the file size (I've removed everything from the library too).
It seems that Captivate is hanging onto things it no longer needs.
Is there a workaround other than starting from scratch and copying slides across?

are you referring to the output file or the project file itself?
i usually look into the folders of an unzipped output file. The file size of each folder and its contects is usually displayed in the explorer window (windows) or in finder (mac). I have found some unneeded files in there, usually unused assets, on a number of occasions.

PDF File Size - any way to compress further?

We have are using the Crystal for .NET export method to export a report to a .pdf file, and are having an issue with the pdf file size on a report that contains images. The images are stored in a SQL2005 database as blob or varbinary(max). The report executes a stored procedure that selects data (including images) to produce a quotation. There are input parms to decide which images to print (for example A, B or both A&B). Both types of images can appear at the line level on the quotation. Type A images print in the main report, Type B images are in a subreport. Both the main report & subreport execute a stored procedure to select an image type.
Our issue, when both Type A and B image is selected to print on a 293 line quote. The PDF file size is 44.23MB
When Type A only is selected, the PDF file size is 2.64MB
When Type B only is selected, the PFD file size is 43.95MB.
There are more Type B images that would print at the line level than Type A, but is there any way to compress this down further as it is too large to email.

You mention that you are using Crystal for .NET, but not what version; CR for .NET 2003, 2005, 2008. 2010?
Applying the latest fixes for the correct version of CR would be the first thing to do.
Next, I'd have a close look at image B as it appears to be the one adding the most "bulk". How is this image different from image A?
General tips re. images:
Save the files a BMPs.
When .jpg image is inserted into Crystal Reports it is converted into bitmap format and as the result of the conversion the report may loose some quality, scale and other issues may arise... E.g.; Crystal Reports is not so good a graphics management tool
When an image is saved as a .bmp, then there is no conversion required and thus the quality of the image should be preserved.
Best practice: save the image with high resolution and required size as a .bmp format then insert this image into Crystal Reports.
Resize the image to the smallest possible size and downgrade the DPI to 72. This will ensure your image is as small as possible and Crystal Reports will have to put in the least amount of work to display it.
Have a look ar KB [1241630 - Exporting a Crystal report (XI) to PDF generates a big PDF file|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333233343331333633333330%7D.do]. This KB, may apply to your version of CR, or not. In any case, you will have to use the KB as a guide and determine what the appropriate registry entry would be for your version of CR.
One more thing. Many people like to use jpg files as they are smaller than bmp files. However, as far as Crystal Reports is concerned, this is inconsequential. The report file will be the same size if a file is inserted as a jpg or a bmp. This is due to the jpg conversion to bmp Crystal Reports does internally.
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup
Got Enhancement ideas? Try the [SAP Idea Place|https://ideas.sap.com/community/products_and_solutions/crystalreports]

How can I use one background jpeg in my ebook without a large file size

I'm guessing that by simply adding a background image or watermark by default adds a separate copy to each page. Since I am intending for them to be the same on all pages except for the title page, how do I shrink the final file size of my PDF eBooks so that the image is stored once but shown on all pages?
Thanks in advance.

Thank you, I understand, yeah, I knew that, my phone is factory unlocked and I am going home, which is obviously not in the States and I am thinking of buying a local carrier there. However, I still have 2 weeks before I leave and cannnot wait to start using my Iphone 4. I thought at least I could use the mp3 player function. So as far as I understand, I cannot activate it without a sim card. I have been using metropcs for about two years and it does not have a sim card. In this case, do I really not have another choice but wait for two weeks to listen to music? My Mp3 player just failed me and I really need to listen to music but on the other hand, while I can use my iphone as an mp3 player in two weeks, I don't want to spend more money on a new one. So, do you have another suggestion? For instance, can I use a friend's sim card to activate mine? Would this cause any trouble, when I go home and buy a local carrier? I think these questions might kinda sound weird to you, but first time with an Iphone, extremely excited to start using under my circumstances, I need help thanks,

My premiere project file size just went from 190MB to 5.61GB... and now it won't open! Anyone know how this happened?

My premiere project file size just went from 190MB to 5.61GB... and now it won't open! Anyone know how this happened? Or how to prevent it from happening again? Thankfully I saved a backup project of the 190MB file size.

warp stabiliser?

Is the file size of a selected image shown on Adobe Bridge CC 2014? If so, where?

Is the file size of a selected image among the filter categories? Or anywhere else? I know I can find it in Photoshop, but that is cumbersome.

The file size is shown in the Metadata panel.
You can not filter on file size but you can sort by file size.

How can I display file size in Finder

Hi folks,
I am trying to figure out where 40GB of data is hiding. I would like to see file sizes in the Finder window associated with my folders in Mountain Lion 10.8.2.. I'm having, what seems to me, a strange problem. When I 'Get Info' on my Hard Drive, the disc space left is only 40GB out of 120GB (ie used being 80GB). My confusion is that when I painstakingly go through the files, I can only account for 48 GB with 'Get Info' on each folder. This is a rather combersome process and I am hoping there is a work around for viewing the file sizes within Finder and not having to open 'Get Info' on each and every folder like I have been.
I have a MacAir 13 inch 2011
Thanks!

Thanks for your time and suggestions, dominic23.
I looked through both links and sadly, none of these suggestions have worked. I have tried many on my own since posting trying to figure out why the volume is being doubled on my hard drive. I've deleted log files, and done a sweep with Onyx to no avail. Strangely, the option of seeing the volumes under 'About this Mac' and 'System' does not have a listing for storage. Weird. I am the only user/administrator on this computer and I don't have shared files.
I'm just stumped.

Unzipping Files in the wrong folder

Hi
I am trying to unzip files. It works fine except that it unzips the files at the root. So i have tried specifying the path for making the directory (in which the unzipped files are stored). But that doesnt seem to work. Now i am unable to find the unzipped files. CAN ANYONE HELP PLEASE
public static void unzipFile(String zFile)
        Enumeration entries;
        ZipFile zipFile;
       try {
            zipFile = new ZipFile(zFile);
            File file = new File(zipFile.getName());
            String fname = file.getName();
           String substr1 = fname.substring(0, fname.indexOf("."));
            String filepath = "/data/psawant/temp";
            File dir = new File(filepath, substr1);
            try {
                    dir.mkdir();
            catch (Exception fe)
                  System.err.println("Unhandled exception:");
                    fe.printStackTrace();
                    return;
            entries = zipFile.entries();
            while(entries.hasMoreElements()) {
                ZipEntry entry = (ZipEntry)entries.nextElement();
                if(entry.isDirectory())
                     // Assume directories are stored parents first then children.
                    System.err.println("Extracting directory: " + entry.getName());
                                      (new File(entry.getName())).mkdir();
                    continue;
                } //end of if
                System.err.println("Extracting file: " + entry.getName());
                copyInputStream(zipFile.getInputStream(entry),
                    new BufferedOutputStream(new FileOutputStream(entry.getName())));
             } //end of while
            zipFile.close();
               } catch (IOException ioe) {                 }
         } //end of unzip function
public static final void copyInputStream(InputStream in, OutputStream out)
    throws IOException
        byte[] buffer = new byte[1024];
        int len;
        while((len = in.read(buffer)) >= 0)
        out.write(buffer, 0, len);
        in.close();
        out.close();
Any help is apprciated
Thanx

Sorry I got it this time. I had overlooked the new File. I added that & it works fine but there seems to be some problem
If the folder has another folder inside . it doesnt show that one. or rather just unzips one folder & no folders inside it. But i guess i can check for that
Thanx for u r help
Have a nice day

How do I keep an Edge Animate banner ad file size small?

Most publishers cap the file size of banner ads at 30 KB to 50 KB. Is that possible using Edge? I know someone asked a question like this two years ago, and the reply was to use a CDN to serve the larger .js files. Is there a more direct approach now that Edge is no longer in preview? Thanks!

Hi SGPGirl,
We were just forming what became the Edge Animate team two years ago, so many questions were asked at that time. The 30k-50k ad standards were built with Flash in mind; HTML advertising standards are still emerging. In the meanwhile, we are making a continuing investment to improve the form factor of Animate output. Here are a few things we've done so far in "Publish":
- Frameworks via CDN (for jQuery)
- "Polite" preloader - this allows you to sneak-in under 30k size limits. It shows a light-weight "preloader" and then pull in a larger payload after the page has loaded. The preloader UI contains a meter that indicates the gzipped size of the preloader including its resources.
- Compressed composition output. When published, the animation (xyz_edge.js) is written in an efficient/compact form that shaves as much as 80% from the composition size.
I'd be grateful for your perspective on the "polite preloader" approach vs. trying to fit the entire composition into 30k. If Animate were to support an "areo-gel weight" output format, what kinds of experiences would you expect to produce with it? If you have any examples, please share!
- Josh

Problem with CS2 edit file size

When I create a new version of a 3-4mb original, make a few simple modifications in CS2 and save back to Aperture the resulting version is almost 70mb. If I export this version from Ap back to my desktop and check file size it is back to near the original size. Yet, when I check the file size stored in my Ap library, it is 70mb. This will fill my hard drive in a hurry! Can someone help explain this ??

I did a little more experimenting by making external edits in PS on a 3.9mb JPG file in both Aperture and Lightroom to see what the resulting file sizes were. In both cases I left the master outside the library so that I could see file additions in both the application library and in the folder containing the originals and revisions. I looked into the file directories to determine real file sizes rather than relying on info from the applications. The increase in library file size was small in both apps. However, there was a significant difference in the revised file size between Aperture & Lightroom in the folders containing the originals. The best I could do in Aperture produced a 24.6mb psd revised file, which showed as a version in the App., in addition to the master. Lightroom gives the option to revise the master or revise a copy of the master when exporting. When revising a copy of the master, the result was a new jpg file approximately the same size as the master - 3.9mb - which appeared as a version. This is what I would like to be able to do in Aperture.
I have been using PS for several years for all my photo enhancements and have developed a pretty comfortable and effective routine. Having used Aperture for a couple of months now, I can see that most minor edits can be done more easily in Aperture, but the same is true of Lightwell. Although I would probably only use PS on less than 25% of my keeper photos, this increased storage requirement seems more trouble than the advantages of Aperture vs Lightroom are worth. Maybe Apple will make a change in the next revision that will effect this situation and make Aperture more desirable for JPG shooters.
Thanks Again,
Bob

Edit file size disagreement

Editing the library of Aperture is covered by using Textwrangler, but I post this in hopes someone else had the exact same issue and that they can share their info on how they resolved it.
I have a file library that contains referenced files. Looks like a bug in Aperture causes a photo edited in an external editor to have a mis-matched file size. Hmm, this is problematic as I'm spending hours troubleshooting this issue.
It looks like I should just re-import it at this point, but I initially wanted to avoid that issue. Textwrangler seemed to be a good idea, but I can't go modifying it without a roadmap. Where are the attributes of file size(s) stored within Aperture's library?
When I'm in Textwrangler, I take the filename and +f it. It locates it fine within Textwrangler, but what do I do next? It's referring to another file it seems.
Here is a screenshot to show my problem.
http://andyography.com/ography/wp-content/uploads/2007/08/notreconnecting.jpg

Hi Waves39,
Highlight the photo
go to share>export
Put in the dimensions you want
export to the desktop
upload to .mac

Unzip file size

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