In the Disk Utility app on your Mac, choose File New Image Blank Image. Enter a filename for the disk image, add tags if necessary, then choose where to save it. This is the name that appears in the Finder, where you save the disk image file before opening it. Resize images from as little as 1px up to 9999px; Easy and fast, drag and drop images or folder of images onto the app window and set the new size (vertical or horizontal) Check the compression quality before resizing; Rename and add sequential numbering to the resized images, and/or; Add some text (example: -small) at the end of the file name. Image optimizer Compression - how do I download the app on PC? If you want to download the software on your pc or mac, you could either first visit the Mac store or Windows AppStore and search for the app OR you can easily use any of the download links we provided above under the 'Download and Install' header section to download the application.
Sep 29, 2020 ImageOptim is a lossless image compression tool.It does not hinder the quality an image while reducing its size. It is pretty smooth and efficient to get a hand on. Once you download it, all you need to do is ‘drag and drop’ the images and compress them as per your conveni. You don’t need to pay for Photoshop or another photo editing app to resize images and make them smaller on a Mac. You can use Preview which comes as part of MacOS and resize images for free.
In 1970, computer scientists used to perform mathematical algorithms in computer codes to find ways to decrease the file size. The process was time-consuming and agitating.
Because of this crisis, there has been an ever-growing need to design file compression tools to reduce the size of any file. Yes, we can say that technology has shown its forecast with growing applications and in-built functions of file compression.
In this article, we will explain the ways to compress files in Windows and Mac to simplify your computer system’s disk drive. But before let’s grasp the understanding of File compression and why we need this.
What is File Compression and its various methods?
File compression is a process to decrease the file size to use less disk space. This process is used to send a file from a computer to another with a limited connection bandwidth. File compression is performed by the following methods:
Lossless Compression
This method uses data compression algorithms that enable the original data to be restored from the reduced data. Lossless file compression compresses a file without degrading its quality. Moreover, this compression uses Run Length Encoding (RLE), Huffman Coding and Lempel-Ziv-Welch (LZW) algorithms.
Lossy Compression
This method results in degrading data and quality from the original version of the file. This procedure is related to JPEG image format and audio files like MP3s or AAC files. Moreover, lossy compression uses fractal compression, Transform coding, DWT, RSSMS, and DCT.
Now, we will share the method to compress files in different Operating Systems.
How To Compress Files In Windows?
Here is the good news for newbies, who wish to learn file compressing in an easy method. Windows 10 comes with the support of file compression. So you don’t need any third-party applications to reduce the file size of your document. Follow the steps below to start the procedure:
- Go to the File Explorer, by pressing window key + E simultaneously. Select the file/folder you wish to compress. By right-click select Add to archive.
- A new window box will appear, where you have to choose the archive format, rename file, and compression method.
- Your compressed file will look like this. I chose the ZIP archive format to compress the file.
How To Compress Files In Mac?
The reason behind compressing a file is that it takes less space than uncompressed files on your hard disk. Mac devices offer in-built compression option for ZIP format. Follow these steps to compress a file:
- Select Finder and choose the file/folder you wish to compress.
- Choose Compress “File Name”. And your file will be compressed in ZIP format
- A new copy of the file will be created which will be in the ZIP format.
Using Third-Party File Compression Tools For Mac and Windows
You can use third-party tools for file compressions as well. Here are the third-party apps to use for your files and folders.
Image Compression App Mac Os
7-Zip (Windows)
This is a free, open-source compressing tool mainly runs on Windows. This is a free, open-source compressing tool mainly runs on Windows. With the help of this tool, you can easily transfer an open compressed file or large data with ease. 7-zip can package file formats into 7z, ZIP, GZIP, BZIP2, and TAR formats.
You can download it from here.
IZArc (Windows)
This software is freeware but not an open-source. IZArc works with a ZIP, RAR, GZIP, tar.gz, bzip2, and 7z formats.
Additionally, IZArc also opens file formats like ISO, BIN, CDI and NRG. This software supports 256-bit AES encryption which helps secure your data
You can download it from here.
WinZip (Mac)
This software helps in opening the major compressed file formats such as Zip, Zipx, RAR, LHA, 7Z, JAR, WAR. This software can open different compressed file formats and also creates Zip files including Zipx files, WinZip’s smallest file size to date.
You can download from here.
The Unarchiver (Mac)
This software is easy to use that can compress files with ZIP, RAR, Gzip, Bzip2. This software also supports 7-zip, LhA, StuffIt and obscure format.
You can download from here.
What are the common image formats and best uses:
BMP
BITMAP (BMP) files are the image format that is used by Microsoft operating systems. We can’t use BMP for web purposes. These BMPs stores color data of each pixel image without compression. A bitmap is also called a raster graphic, which is a digital image formed by a matrix of dots.
EPS
Encapsulated PostScript (EPS) file formats are used in professional printing. This format is used in vector-based images including Adobe Photoshop, Adobe Illustrator and CorelDRAW. Additionally, this file is also compatible with PostScript printers which are used for transferring files between several graphic applications.
GIF
A GIF stands for Graphics Interchange Format, which is mainly used in web graphics. This format is used widely after JPEG. This image format uses lossless compression, which means it doesn’t noticeably degrade the original image.
JPEG
JPEG stands for Joint Photographic Experts Group. This format used in digital cameras to store photos because it supports 224 or 16,777,216 colors.
Moreover, it uses lossy compression. This format may reduce the size of the bitmap (BMP) file format without any degradation in quality.
PNG
PNG stands for Portable Network Graphics. This file format is used for application graphics and also widely used on the Web.
This format supports an alpha channel and “RGBA” color space. There are three standard color channels (red, green and blue) with 256 levels of transparency.
Some other common file formats are PDF, PSD, TIFF, RAW and many more.
Final Word
There can be chances when we may run out of the storage space from our operating system. So of the most efficient ways is to compress the file or folder to save our system’s disk space.
By compressing a file, data uses less space, and we can easily share the files more quickly.
This was a quick guide to understand how to compress files in Windows and Mac. If I missed out at any point, let me know in the comment section below along with your views.
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Responses
Digital image compression has made it possible to lessen redundancy inherently present in your image data and help you store and transmit data in a much more efficient manner, thereby saving bandwidth expense and a lot of time.
Related:
For your photos we list here a number of image compression software which meet a wide range of the user’s compression needs.
1. Fileminimizer Pictures- Great Compression Rate and Features
If you want a great deal of compression for your professional needs then Fileminimizer Pictures is the exact software you want. Besides it also offers a number of interesting features.
- Fileminimizer Pictures has compression rates which can go further than 90 percent of the size of the image.
- You can also link it to social media (for instance Facebook) where it compresses and uploads your pictures directly.
- Lossless compression with features like batch processing makes it a good choice of compression software.
2. Caesium- For those who prize speed above all else
Caesium is an amazing open source software that helps you compress your images with minimum quality loss. However, there are a couple of formats for which it does not provide lossless compression.
- One of the most frequently used compression software on the market, Caesium is quite reliable and user-friendly.
- It does not provide Lossless PNG compression.
- However features like metadata storing facilities and subfolder structure support make up for its drawbacks.
3. Jstrip 3.3- Faster and Quicker JPEG Compression
Jstrip is free software which helps you to lower the size of your JPEG images and the compressed images do not lose out a lot of their original quality.
- It is effective in removing EXIF data, JFIF Header , XMP data etc as per the user’s desire.
- Since extra bytes, thumbnails and color profiles or in general any unnecessary data will be removed and this helps a lot to cut bandwidth costs for low-budget websites.
- On its own the software will replace your images so you are compelled to work with the copies.
4. OptiPNG- Effective PNG optimization For the Serious Users
OptiPNG is a lossless PNG optimizer which has a command-line bases setup. It even helps you convert other formats into PNG form.
- This software used a command line-based and is full of different options so thought it may be intimidating for the amateur user, the rewards for taking the time is quite great.
- On an average it can drop the size of a PNG by one-third which is quite commendable.
- It also converts formats like MP, GIF, TIFF to compressed PNG.
5. PNGGauntlet: Good Quality Compression for a number of formats
PNGGAuntlet is a piece of software that combines the resources of three other ones, – namely PNGout, OptiPNG, DeflOpt.
- It has a simple drag and drop working mechanism which is good for your average user.
- It has probably the best PNG compressions rates across all its other competitors at present.
- Since it uses three different software packages the effective time taken per compression is pretty high but at least the quality is unaffected and the reduction is comprehensive.
6. PNGOptimizer 2.2: Light on the machine yet Heavy on the Options
Though it is a roughly 150 KB download size PNGOptimizer is an effective compression tool with plenty of interesting features.
- PNGOptimizer principally removes useless information from your PNG files and also helps converting BMP, GIF and TGA into lossless PNG format.
- Animated PNGs are also supported by the software and even makes easily obtainable PNG screenshots for you.
- It is light on your machine and affords features like removing text, background color.
7. PNGOUTWin: Smarter Interface and Easily Configurable
PNGOut is one of the best PNG compression tools available. It is easy to use and affords a great deal of functionality.
- It can be used to overwrite the original image file and save your output elsewhere.
- You can also adjust the level of compression to one that fits your needs the best.
- Typical drag and drop interface to ease user access and excellent compression rates make it a very smart option.
8. RIOT: Smart Interface Coupled with Good Configurability
Radical Image Optimization Tool or RIOT is a great software compression toolkit which helps you optimize a wide variety of image files.
- It not only helps convert JPEG, GIF and PNG images but it’s clear interface helps you compare the different outputs of the respective compressions.
- The batch interface is responsible for processing multiple image files at a pretty decent speed.
- Though it is freeware, it will install additional software during installation but the smart interface and features make it worth the download.
9. ScriptJPG: JPG Compression for the Engineers and Fairly Technical
ScriptJPG acts as a front end to various command line tools. While its user interface could use some work it is pretty nifty package for JPG compression.
Image Compression App Mac Pro
- This is a tool mostly for front end engineers to compress JPG files and it can afford both lossy and lossless compressions.
- The lossless compression of JPEG images is quite commendable.
- The software also lets you determine compression parameters and has an average light download size of 250 KBs.
10. FileOptimizer – Flexible across all formats
FileOptimizer is a versatile piece of software that helps you compress almost all kinds of files and doesn’t compromise much on quality.
- From JPG , GIF, PNG images to PDF files FileOptimizer compresses about almost every kind of file that you may need.
- In spite of the array of files it can compress, it affords a very easy drag and drop process and is thus extremely easy to use.
- Lossless compression rates are also quite commendable.
Apple Mac
These are the best Image Compression Software available in the market. They are customized to meet the user’s needs and are reliable for the amateur as well as for the front end developers.