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2
votes
1answer
43 views

Do Apple Lossless tracks remain lossless when sent via Airplay to a 4th gen Apple TV?

This question, from 2012, asks whether there is loss in the signal quality of an Apple-Lossless-encoded file when transmitted from a Macbook to an Airport Express. I am wondering whether things are ...
5
votes
2answers
528 views

Will Time Machine store the same data twice in this situation?

I had 80 GB of movies on my internal HDD. Time Machine backed them up to an external HDD, along with everything else on my drive. I then moved those movies to another external HDD (which is not being ...
1
vote
1answer
62 views

List number of files in multiple zip files

How can I get the total number of files in multiple zip files at the same time? I have around 1000 zipfiles in one folder and would like to know the total amount of files inside them all combined. How ...
1
vote
0answers
83 views

Large zip files created in OS X cannot be opened in Windows

When I compress a large directory in OS X, like 5-6 GB the resulting archive cannot be browsed in Windows / Total Commander. It hangs the app and stays at 100% cpu usage, like its trying to extract it ...
0
votes
3answers
42 views

Simple 'drag and drop style' video compressor

Is there any app really simple to compress videos on Mac? Something like JPEGmini for videos (do not resize, just reduce file size). I just know Handbrake, but it is not the most simple solution.
0
votes
1answer
103 views

Apple website images compression

Ok I searched like the whole internet for this topic but couldnt find ANYTHING at all and thought maybe this is the right place to ask such a question. I was recently visiting apples iphone site and ...
0
votes
0answers
276 views

Mount SquashFS under El Capitan or alternative to SquashFS?

I am converting some .tar.gz to SquashFS (using squashfs from homebrew) using xz compression because I want to be able to mount the archives and read the content without extrating and also because the ...
1
vote
0answers
54 views

Can MacOSX 10.7 open tar.lzma files [closed]

Can the tar command included by default on MacOSX 10.7 open tar.lzma (or tar.xz) archives? If it helps to answer I have a sample file here. You could test by opening a Terminal and issuing: curl -...
0
votes
0answers
5 views

removing pages from a PDF increases size [duplicate]

I have a 100-page PDF document, whose size is about 1MB. Using Preview, I exported 2 pages (that contain only text, no graphics, nothing fancy) to a new PDF. The size of the new file is also about 1MB,...
0
votes
0answers
122 views

kernel: decmpfs repeated error messages origin?

I am in the process of evaluating different anti-virus on Mac OS X (Mountain Lion, Mavericks, Yosemite…). Upon running a full scan to test Sophos on a Mountain Lion Mac I witnessed a total slow down ...
0
votes
1answer
47 views

Why is this folder 4.2mb? It only has a handful of relatively small text files in it!

I have a WordPress plugin which was originally 26kb zipped (79kb uncompressed). I installed it, then made some live changes, then downloaded it and found that the plugin folder is showing 4.2MB in ...
1
vote
0answers
437 views

Does OSX 10.10.4 support LZMA compression at the individual file level (not tar files)?

From the command line, I would like to compress some database dumps using the LZMA algorithm. And, OSX adds XZ support (written in October of last year), claims " It turns out the XZ support in OS X ...
1
vote
0answers
37 views

Exponential PDF File Size in Preview

I have word document (.docx on a mac) at 3.4 MB. When I save it to PDF it becomes a whomping 90 MB. I can't make it smaller and I can't figure out why it's happening. Here are the details: I've ...
0
votes
0answers
28 views

How do I transparently compress a directory?

I'd like to enable HFS+ compression for a directory, applying it to both the existing files in that directory and newly copied files. I expect to be able to read and write the contents of that ...
6
votes
2answers
845 views

How to zip from terminal without creating folder structure of path to folder?

It is possible to zip a target folder with encryption by the terminal command zip -er ~/Desktop/myzippedfolder.zip ~/Documents/myfolder/ However, the contents of myzippedfolder will be a folder ...
2
votes
1answer
312 views

Can I compress SMS content to free up storage?

My SMS on my iPhone is growing everyday. According to my iPhone's Usage function, I have about 1.2GB of SMS data. My phone has been running on low storage and any megabytes are precious. Is there ...
1
vote
1answer
321 views

What is wrong with “compress” option?

In finder, I can cntrl + click on a file and click "compress"... Sometimes. It seems that randomly the option just won't show up and I have to open a new finder window, or duplicate the folder first, ...
0
votes
2answers
382 views

OSX: move to archive (compress a folder and remove it)

I'm looking for a way to zip (or 7z) files via a file manager in such a way that the original folder is deleted right after the zipping finished (less clutter when batching compression of multiple ...
3
votes
3answers
6k views

What does error “the Classic Environment is no longer supported” mean?

I created a .app file that is 303KB on disk. When I right click it and press Compress... I end up getting a 8.4MB .zip archive. I tried sending the .app via email to myself and compressing it on ...
0
votes
1answer
71 views

Extract jpeg File

Often files are hidden in .jpg files simply by opening them up with 7zip, then closing them again. Mac OS X archive utility does not have this ability. Is there any software available for osx that ...
1
vote
1answer
49 views

Extract zip file to different location without Terminal

Without third-party software, is there a way to extract a zip file to a different location without using Terminal? I realize I could use unzip file.zip -d /path/to/destination, but I'd love to do it ...
6
votes
3answers
27k views

How can I make a PDF document smaller?

Here's my problem, I have a PDF document 583KB, and I want to make it under 500KB so I can upload it. What should I do?
1
vote
2answers
424 views

I need to compress a PDF to 5 mb (at most, but best exactly)

Is there any way to compress a PDF (with the preview / iOS default software) to a certain size in mb (in my case as close as possible under or equal 5 mb)? The actual size right now is (6 scanned ...
0
votes
1answer
174 views

TarPit not working in Mavericks

One of my favorite applications appears not to be working after making the upgrade to Mavericks. I am referring to TarPit which creates easily archives for me. I just loved this application since on ...
0
votes
1answer
700 views

Compress folders with lots of duplicate files

I have a hierarchy of folders which contain lots of duplicates files (it's a series of versions of a LaTeX document, and while the evolved a lot, many of the figures are identical in multiple versions)...
6
votes
2answers
2k views

Options on a Mac for a writable, compressed file system?

I have a SSD drive on my MacBook Pro and I'm constantly running on out of disk space because I need to install and run multiple virtual machines (Linux, Windows etc) on my Mac. Is there a way to mount ...
2
votes
1answer
134 views

Replace “Compress” in Finder context menu with other compression app

I've lost some sensitive data because the built-in compression utility generates corrupt files and doesn't show any error. After I compressed about 1 Gb of files with Finder's "Compress", I decided ...
0
votes
1answer
38 views

How to add a file into zip?

I have a quite large zip file with archived documents and I want to add a new file into it. How to do it quick and easy? The archive is quite large, so extract+add+compress+delete is not preffered ...
2
votes
3answers
858 views

Why are MP3 files not noticeably compressed by the compression tools within Lion?

I clicked the 'Compress xxx' option in the popup menu in order to compress a folder of MP3 files, but the result was a .zip file that is almost the same size as before compressing; it seemed to only ...
14
votes
2answers
2k views

why does OSX add extra '._<filename>' when I tar a directory?

I'd just like to know why if I "tar -czf" a file/directory, osx adds a: ._ for each file? I see these when I untar in linux. Or when I work with the uncompressed project in eclipse as it doesn't ...
1
vote
1answer
416 views

Is there a way for me to open a .xdi file?

I have on my computer a file that as been compress with the .xdi extension. Is there a way for me on my Mac OS X to open it?
3
votes
1answer
825 views

Problem with corrupt .rar file

I have a big file compressed in split .rar archives. There are 68 archives named .rar, .r01, .r02, etc., annd the problem is that .r36 is corrupted resulting in an Unexpected end of archive. I've ...
3
votes
3answers
6k views

Create a zip file using an Automator Service

I am trying to create a service in Automator in Mac OS X Mountain Lion. The command that I want to use is as follows: zip zip-file.zip "$@" And here is a screen capture of what I did: It works. ...
1
vote
1answer
688 views

Is Mac OS X's Compress a “standard” zip?

When I submit my research papers to an online review system, I prefer to upload all files (manuscript, figures, etc) by a single zip file, so that the review system can unzip the file. Otherwise, I ...
4
votes
1answer
5k views

Can I change compression settings on built-in archive utility?

I have a bunch of files I want to compress to stick in my dropbox account (as a single archive file.) When I select all the files in Finder and right click, I get the choice to "compress", which does ...
4
votes
1answer
306 views

iPhoto files compressed in Time Capsule. Where is the original size?

My 8 year old iMac died some days ago. Fortunately, I have everything backed up on my Time Capsule. I just tried to get my photos from iPhoto off it, but realized that all my shots have been ...
5
votes
2answers
1k views

Convert a number of zip file to rar?

Any suggestion of how to convert tens of zip files to rar format? App or command line tool are welcome.
2
votes
3answers
1k views

Can .zip folders created using Windows XP Pro be opened and extracted on Mac without any additional software?

I am a Windows user, and I would like to send a compressed archive/folder to my colleague who is a Mac user. I do not want him to have to download any additional software to open and extract it. Can ...
1
vote
2answers
379 views

Is there a Mac utility to create an executable Zip/archive?

Is there a corresponding utility similar to the Windows Zip-to-Exe utility? I would like to compress an archive with a flash presentation (containing a lot of files), and make it executable in Mac, ...
2
votes
1answer
1k views

Software to losslessly optimize batches of image files

I frequently work with large numbers of image files to be used in websites. I'm currently using Photoshop's 'Save for Web' tool to find the most efficient way to compress images, but that takes some ...
13
votes
4answers
6k views

Creating an automated HFS+ compressed folder

I would like to set up an automated way for archiving files in OS X Lion. By archiving I mean using HFS+ compression feature on a specific folder, and make every file that I move into this folder ...
17
votes
4answers
19k views

How do I create a DMG file from a directory?

I'm trying to add a few files into a dmg. How do I create a DMG file from a directory?
3
votes
1answer
14k views

Does the iPhone compress emailed videos?

When you open a video in the Photos app and choose to send it via email, does the video get compressed, or is it sent using the same resolution it was shot in? I'm mainly wondering about the iPhone 4....
14
votes
4answers
2k views

Tools to compress and encrypt files

I want to compress several files and encrypt them with a password if possible. Are there any build-in tools in Mac OS that provide such functionality? If not, can you recommend me a (freeware) ...
0
votes
1answer
270 views

Compressing iTunes Library

Like most of you I have a very large iTunes Library with a lot of video content; I was wondering if it is possible to save the video content in compressed form(since space is always an issue) but ...
13
votes
3answers
7k views

Why are so many Mac downloads a .dmg just that contains a single .pkg?

I've noticed that many downloads are a dmg (disk image) that contains a single pkg file (installation package). Usually the pkg seems to be already compressed since the dmg doesn't reduce the file ...