WinZip® provides several methods for compressing the files that you add to a Zip file. In making a choice of compression methods, there are several things to consider, including the type of data you are compressing, your plans for later unzipping the data, and the amount of time you are willing to wait while your data is being compressed.
Nov 26, 2020 This app is one of the best decompression and compression software for Mac. Stuffit is fully compatible with the most popular file types, including ZIP, RAR, 7z or TAR. Therefore, it can be used to open almost any compressed element without any problems. Stuffit works very quickly and practically does not consume system resources. WinZip is undoubtedly the most popular and highly recommended compression software available in the market currently. It is a perfect way of compressing and decompressing files. Apart from it, you can also use it to share, protect, manage and backup files.
Using the WinZip Ribbon Interface
In the WinZip Ribbon Interface, you will need to select the appropriate compression method to use prior to beginning the zipping process.
Setting the compression method is accomplished on the Settings https://si-soft.mystrikingly.com/blog/c-2b-2b-ide-for-mac. tab of the WinZip Ribbon. Set the appropriate compression method in the .Zip and .Zipx fields to use when creating .zip or .zipx files, respectively.
For more detailed information on each of the compression methods, see the Additional information on specific compression methods section below.
Additional information on specific compression methods
Here is additional information for all of the compression methods supported by the current version of WinZip:
None or No compression
Some files that you may want to add to a Zip file are already compressed. For example, many multimedia and sound files, such as avi and MP3 files, are precompressed versions of images and sound. In most cases, these types of files cannot be further compressed to any significant degree by the available methods. Therefore, to save time, it may be best to select None or No compression when you are adding a group of files that are already compressed.
This is a good, general-purpose compression algorithm known as 'deflate'. It is the same basic algorithm as is used for Legacy compression (see above), but is optimized for speed rather than compressed size. Therefore it will generally compress your files somewhat faster than Legacy, but the compressed files will be somewhat larger.
Earlier versions of WinZip supported four variants of the deflate algorithm, referred to as Maximum (portable), Fast, SuperFast, and Normal. These all used the same basic technology but were optimized in different ways for speed vs. compression. WinZip 12 and later no longer uses Fast and Normal when compressing files, but it can still extract files compressed with any of these methods.
Enhanced deflate
The 'enhanced deflate' method is similar to the original deflate but operates on larger chunks of data at a time, often resulting in improved compression. It can be particularly useful for compressing large files containing large amounts of highly compressible data such as large text files and text-based database files.
Earlier versions of WinZip referred to this compression method as Maximum (enhanced deflate).
bzip2
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bzip2 is an open-source data compression algorithm that compresses most files more effectively than the traditional deflate methods, but it can be somewhat slower.
Earlier versions of WinZip referred to this compression method as Maximum (bzip2).
LZMA
LZMA is an open-source data compression method that uses a dictionary compression scheme that uses a larger dictionary size than the deflate method. It can produce a higher compression ratio than older methods.
PPMd
PPMd is an open-source data compression algorithm that can compress most text-based data more effectively than either the traditional deflate or bzip2 methods, but which is quite often slower than either.
Earlier versions of WinZip referred to this compression method as Maximum (PPMd).
XZ
XZ is an open-source data compression method that makes use of the LZMA2 algorithm to produce a higher compression ratio.
Jpeg compression
The Jpeg compression method is designed to compress JPEG images. JPEG images are inherently hard to compress because their format already incorporates a simple but effective compression scheme. At a high-level, Jpeg compression works by first undoing the lossless compression (entropy encoding) within JPEG images and then recompressing them with a better algorithm. When the image is uncompressed, the reverse happens—the Jpeg compression algorithm is undone and the original JPEG entropy encoding is reapplied.
Jpeg compression cannot be manually selected. Instead, WinZip will automatically use it when appropriate if you choose 'Best method'. |
WAVPACK is an open-source compression method that is especially designed for lossless compression of .WAV (audio) files. How to change the default pdf reader mac. For these files it will generally produce better compression than other compression methods supported by WinZip.
WAVPACK compression cannot be manually selected. Instead, WinZip will automatically use it when appropriate if you choose 'Best method'. |
MP3 compression
The MP3 compression is designed to compress MP3 audio files. For these files, it will generally produce better compression than other compression methods supported by WinZip.
MP3 compression cannot be manually selected. Instead, WinZip will automatically use it when appropriate if you choose 'Best method'. |
Apple gives a detailed guide on Finder for newbies, however, it doesn't mention Finder's compression utility that enables users to reduce video file size on Mac and shrink videos and folders to a zipping archive without quality loss. If you get huge videos or video folders but limited storage space or you need to downsize videos for faster emailing, sharing and downloading, try Finder before you resort to other video applications for macOS. Mac tips and tutorials are our bread and butter. From start to finish, here's our guide on how to compress video with Mac finder easily.
Option 1: Resize Videos with Mac Finder via Encode Media Dialogue
Step 1: Open Finder and Select A Video
Click the Finder icon in the Dock, a window appears, then find the video file. Right-click the video, select 'Encode Selected Video Files' at the bottom of the pop-up menu. You should see the Encode Media dialogue that can work as a free video compressor for Mac and let you resize video in Mac Finder easily. Move Step 2 to do the task efficiently.
Tips: some users pointed out they didn't see the Encode Selected Video Files option. To fix such problem, you need to activate the video file encode option. To do this, go to System Preferences > Keyboard > Shortcuts on your computer, and click Services on the left pane, find Files and Folders, check the boxes next to 'Encode Selected Video Files' and 'Encode Selected Audio Files', and make the settings valid. Go back to the video file you are going to downsize, right-click it, you should see the Encode Selected Video Files option under Service.
Step 2: Start to Reduce Video Size in Finder
It compresses video file size in Finder of macOS by lowering down video resolution. In the Encode Media dialogue, there are format information, Settings and Encode options. Click Settings drop-down icon, and select your ideal one for out file, 480p, 720p, 1080p, Audio Only or Apple ProRes. You can convert 4K UHD to 1080p/720p, or shrink 1080p to 720p/480p, or extract audio from video to make output video file smaller.
Click Encode drop-down menu, select Greater compatibility instead of High quality to reduce video file size in Mac Finder. It's a trade-off between video file size and video quality. Then click Continue to close the dialogue and the process with Mac Finder begins. There's no process indicator. After the task is completed, open the folder you save the file in and check the video file size.
We compressed a video with 2160p to 1080p and the file size was reduced by 80.27%. According to our test, the compression speed was fast, output video played smoothly and image quality was acceptable. Below is our test result.
Input Video: 148MB, 23s, 3840x2160, MPEG-4, AVC, AAC audio, 51.9Mbps, 29.97fps.
Output Video: 29.2MB, 26s, 1920x1080p, MPEG-4, AVC, AAC Audio, 10.1Mbps, 29.97fps.
Option 2: Compress and Zip Video Files/Folders with Mac Finder
You can make videos much smaller for faster emailing, sharing and downloading by zipping files or file folders with Finder on Mac. Read our tutorial below to learn how to get started. It's quite simple and speedy.
Step 1: Open Finder and Choose Videos or Folders
Choose the video or folder in the Finder on Mac, right-click the video or folder.
Step 2: Begin video progress
Select Compress (file name), and the Mac will do the remaining work. This can be done quickly, and you'll find your video ends in .zip.
Troubleshooting: 1. Can't find the 'Compress' option
Some users feel confused that the pop-up menu doesn't have the Compress option when they right-click a video file. Note that you won't see the option if you select a dynamically created video, for example, a video in All My Files. Or if you have a video file or folder with .zip, you can't zip and reduce it again. Also, check the permission settings if you can't zip video with Mac Finder, select the video, go to File > Get Info> Sharing & Permissions and click the pop-up menu next to users name to check the permissions settings.
2. Zipping file doesn't change the size
It's normal that you compress video files into a zip archive with Mac Finder but find the zipping doesn't make file size much smaller. This could happen if the source video file or folder is already reduced or encrypted.
Finder Doesn't Satisfy You? Here's A Professional Video Compressor for Mac
It's easy to shrink video file size with Mac Finder, but compression options are limited to lowering down the resolution. MacX Video Converter Pro is a nice choice for users who want a more advanced tool to replace Finder.
Best Zip Compression Mac 10.7
What makes MacX outshine other competitors is '98%' - it is able to shrink video size by up to 98%, and 98% of original quality can be reserved after reduction, thanks to optimized compression algorithm and High-Quality Engine. Compared to video reduction with Mac Finder, the software offers a wide range of options to resize videos without noticeable quality loss, such as trimming, cutting, converting codec formats, adjusting video resolution/bitrate/aspect ratio, and more. Click the Download button below to get it shot now.