How do I convert multiple png to jpg on Mac?

Preview can do batch conversions.

See here for details: How to batch convert images using macOS Preview - MacRumors

Note that PNG has some properties that may make it more versatile and a better choice in some circumstances.

• Transparency
• Smaller size for non-photographic images with few colors, like graphs and logos.
• Pixel perfect reproduction

To Convert a PNG to JPG on mac

1. Open the PNG image with Preview. This is the default application when double-clicking the image.
2. Select File > Export.
3. Name your file and select a location to save it.
4. Change the format dropdown menu to JPG and adjust the quality slider.
5. Then, click Save.

There are actually several simple ways to batch convert PNG to JPG on Mac. I encountered the same problem before and later found a reliable solution.

You can use Automator. Although it sounds complicated, Automator is actually not difficult to use. You can create a batch conversion workflow. After setting it up, you can batch convert images with one click, without having to do it every time. I have tried it and the effect is pretty good.

AbcAymer wrote:

1. To Convert a PNG to JPG on mac

Open the PNG image with Preview. This is the default application when double-clicking the image.

2. Select File > Export.

3. Name your file and select a location to save it.

4. Change the format dropdown menu to JPG and adjust the quality slider.

5. Then, click Save.

Although using Preview to convert PNG to JPG is very convenient, it also has some shortcomings. First of all, it can only process one image at a time, which is a bit inefficient. If you have a lot of images to convert, it will be troublesome. And when exporting, although you can adjust the quality, the function is relatively basic and there are not many options. If you need to batch convert or have more requirements for the images, this method is not enough. It is okay for simple conversions, but it is useless for batch processing.

Tina_birds wrote:

If you often need to batch convert images, Any2PIC can save you tons of time by automating the process.

These are the best methods for bulk converting png to jpg on mac for free!

[Edited by Moderator]

Tina_birds wrote:

If you often need to batch convert images, Any2PIC can save you tons of time by automating the process.

Source:

If you want to keep the original quality, it is recommended with a dedicated PNG to JPG Converter as it offers advanced settings for image conversion. And most people are not comfortable with command line tools.

[Edited by Moderator]

You can create an Automator workflow (saved as an app) like this to convert a folder of png files to jpg files:

If you often need to batch convert images, Any2PIC can save you tons of time by automating the process.

[Edited by Moderator]

ImageMagick is a free command line tool available for macOS, Windows and Linux. It offers high-quality image conversions with more control over quality settings.

First, install ImageMagic free image converter on Mac via homebrew:

brew install imagemagick

Once ImageMagick is installed, open Terminal app and change to the pathe where png files are saved. After that, input the following command to bulk convert PNG to JPG on mac:

mogrify -format jpg *.png

This command will replace the PNG images with JPG versions while keeping the same filenames (but with the .jpg extension).

In addition, you can specify the quality of the JPG images by adding the -quality flag. The value ranges from 0 (lowest quality) to 100 (highest quality). For example:

mogrify -format jpg -quality 100 *.png

This will ensure maximum image quality during the PNG to JPG conversion process.

You can create a custom workflow in Automator for converting PNG to JPG while controlling the quality.

Step 1: Open Automator on your Mac and choose Application.

Step 2: Search for Get Specified Finder Items and drag it to the workflow.

Step 3: Add Change Type of Images action and set it to convert images to JPG.

Step 4: Add a Copy Finder Items action to save the output in a specific folder.

Step 5: Save the workflow as an application and run it on your batch of PNG images.

This way, you can automate the PNG to JPG conversion while ensuring the images are saved in high quality.

Tina_birds wrote:

If you often need to batch convert images, Any2PIC can save you tons of time by automating the process.

Source:

+1 for Any2Pic, A lot of folks in Microsoft tech community recommend this app as well.

[Edited by Moderator]

If you think Automator is too troublesome, Any2Pic is definitely for you! Batch conversion is fast and stable, much less troublesome than online tools. It is very suitable for friends who often process pictures, highly recommended!

[Edited by Moderator]

Why would you want to do this? PNG is fundamentally different than JPG. You cannot perform this conversion without loss of data.