How to Reduce JPEG file size on Mac? 4 Ways to Do it!

last Updated on Jul 13, 2022
Let me know you how to reduce the JPEG formate pictures on your Apple macOS. As our digital cameras are getting more advance and capable of clicking high-resolution photos, we are so fond of clicking pictures and trying to capture every consequence, but that leads to filling the storehouse of our device, sol what to do now ? Should we delete the previous photograph to make outer space for the raw ones ? And what if we want to mail person the images, and we can not do sol because of the big file size ?
The answer is no. You do not need to delete your older pictures to take raw ones, and you will besides be able to attach your photos over the mail. All you have to do is to reduce the JPEG file size, and it will automatically create storage. And you can do that on your Mac without installing any third-party software to reduce JPEG files. so if you have piled up many photos and need to reduce the file size, pick up your MAC and follow this blog. And we promise that after reading this, you can cursorily reduce the JPEG file size on MAC .

Way to Reduce JPEG file size on Mac Using Preview App

The first matter that may come to your mind before trying to compress the JPEG files is that you will lose the quality of the images.

Is it going to affect the previous quality of my images? So let us first discuss it

You need to understand that there are two types of effigy conversion : lossless and lossy .
Lossless conversion is converting a file from one format to another without losing any information. Lossless conversion can be done in several ways, but the most coarse way is using the default prototype converter available on Mac computers, named Preview. The quality of lossless conversions is excellent, and you won ’ t notification any remainder between lossy and lossless conversions. I
lossless means that there will be no choice degradation in the output file and will not affect the original image choice. The merely goal of lossless compression is to compress an double to the smallest possible act of bits without losing the actual quality of your data .
lossy compression is a unique manner of compressing data that retains some information from the master File. One of the most common forms of lossy compression is JPEG, which uses run-length encoding to encode an picture into a series of bits. This type of file conversion can have a significant impingement on its overall quality and can besides distort the final examination product. It ’ randomness crucial to note that many files are compressed by default option, as they are stored on your computer for faster access .
So if you want to reduce the JPEG file size using Preview, follow these steps:
Step 1:  Go to Applications, search for the Preview application and launch it. You can even look for it on the dock .
Step 2:  After opening the Preview, click on the File menu, locate it beside the Preview option, and choose Open .
Step 3:  then, you must navigate to your image ’ mho location and blue-ribbon it .
Step 4: once your selected prototype is open in Preview, go to the menu bar and blue-ribbon Tools, then Image Size .
Step 5:  A pop-up book window will now be opened where you will get the options : settlement, Width, and Height, which measure the measurement of the selected picture. here you have to change the resolving power, reducing the image size .
Step 6:  Type the claim dimensions for height and width and chatter “ OK. ”
Check the compress Size of the effigy. If you think it is still high, choose a lower property again .

How To Shrink JPEG Files Without Losing Quality?

Although the most straightforward manner to compress the JPEG files is by changing their dimensions, as we have seen in the above section, this method acting will decidedly affect the effigy quality, which we do not want. So, is there any alternate way to compress the JPEG file while retaining the quality ?
Yes, there is, and here are the steps that you have to follow to compress the JPEG file in the Preview application :
Step 1:  Pick an image that you want to resize. Double snap on it to open it in Preview .
Step 2:  then, from the menu browning automatic rifle, click on File and choose Export .
Step 3:  Open the Format drop-down menu, choose TIFF and export it in TIFF format.

Step 4:  Go to the Compression menu and blue-ribbon JPEG .
Step 5:  Select the “ Save ” choice .
Step 6:  After you ’ ve saved the File, open it in Preview and go to File > Export .
Step 7:  finally, export the File as JPEG, and do not do anything to the timbre option unless you wish to decrease the choice .
Step 8:  Rename the File and save it if necessity .
so now your persona will be saved in JPEG format after reducing its Size, and do not bother about the timbre because it will be retained arsenic much as possible .

Your Mac has ways to compress photos in bulk

All the solution that we have discussed cashbox now was regarding compressing a one photograph. But what if you have a booklet of multiple images ? You may have hundreds or thousands of them, and you want to compress them all in at once ?
We do have a solution for that a well. Before starting, please organize all of your photos into a booklet .
hera are the easy steps that you can follow to compress all of your photos .
Step 1:  Locate the booklet containing the images you wish to compress and right-click on it .
You will then see several options from which you must select to compress with a folder name .
Step 3: A newfangled “ .zip ” booklet will be created after a few seconds. You now have a slide fastener file that contains all the compress images in your folder .
You can easily unzip images when you need to use them by just double-clicking on the folder. This is the most effective way to compress and store the bulk of your photos .


We hope that storage or attaching the files via mail will not be a trouble for you because you know how easy it is to reduce the JPEG size on your MAC without using any third-party application .
we are glad to help you, submit this Form, if your solution is not covered in this article.

HowtoiSolve Staff

Jaysukh Patel is the founder of howtoisolve. besides self Professional Developer, Techno lover chiefly for iPhone, iPad, iPod Touch and io, Jaysukh is one of creditworthy person in his kin. contact On : jaysukh.pharma @ [ OR ] admin @

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