How to Batch Compress Images on Mac

What you need

• macOS 14.0 or later
• PixPack – Image Compressor Pro from the Mac App Store

Step by step

1. Build the queue

   Use Add Files to select multiple images, drag several files into the window, or drag in an entire folder. Press ⌘V to add an image from the clipboard.

2. Trim the queue

   Review the file list. Use the per-file checkboxes to deselect anything you do not want to process, and use Clear List if you want to start over.

3. Order the queue

   Drag files to reorder them so the batch exports in the order you want. This was added in version 1.4.3.

4. Configure once

   Select a preset and choose the output format, quality, resize and metadata settings.

5. Apply to the batch

   Press Apply to All Files so the same settings are used for every image in the queue.

6. Review and export

   Check the preview and the per-file statistics, then export the whole batch to your output folder.

What you get per file

PixPack reports the original size, the compressed size, the space saved and the savings ratio for every task, so you can see exactly which files benefited most.

Handling mixed formats in one batch

A batch can contain a mix of JPEG, PNG, HEIC, WebP, GIF, BMP and TIFF files, because PixPack reads all seven. They are all re-encoded to the single output format you choose.

Naming the exported files

Filename templates let you control output names using variables such as the original name, a counter and the date, with automatic conflict handling when names collide.

Expected result

A complete set of compressed images exported together, all using the same settings and in the order you arranged.

Tips

• Save the batch configuration as a custom preset if you will repeat the job.
• Deselect rather than remove files if you are unsure — it is easy to re-enable them.
• Preview two or three representative images before exporting a large batch.